FOR PUBLICATION
UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
NETWORK AUTOMATION, INC., a ⎫
California Corporation,
Plaintiff-counter-defendant- No. 10-55840
Appellant, D.C. No.
v. ⎬ 2:10-cv-00484-
ADVANCED SYSTEMS CONCEPTS, INC., CBM-CW
a New Jersey Corporation, OPINION
Defendant-counter-claimant-
Appellee.
⎭
Appeal from the United States District Court
for the Central District of California
Consuelo B. Marshall, Senior District Judge, Presiding
Argued and Submitted
December 8, 2010—Pasadena, California
Filed March 8, 2011
Before: Stephen S. Trott and Kim McLane Wardlaw,
Circuit Judges, and Michael W. Mosman, District Judge.*
Opinion by Judge Wardlaw
*The Honorable Michael W. Mosman, United States District Judge for
the District of Oregon, sitting by designation.
3223
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3227
COUNSEL
Courtney L. Stuart-Alban (argued), Brent H. Blakely, Blakely
Law Group, Hollywood, California, for the plaintiff-appellant.
James E. Doroshow (argued), Fox Rothschild LLP, Los
Angeles, California, for the defendant-appellee.
OPINION
WARDLAW, Circuit Judge:
“We must be acutely aware of excessive rigidity
when applying the law in the Internet context;
emerging technologies require a flexible approach.”
Brookfield Commc’ns, Inc. v. West Coast
Entm’t Corp., 174 F.3d 1036, 1054 (9th
Cir. 1999).
Network Automation (“Network”) and Advanced Systems
Concepts (“Systems”) are both in the business of selling job
3228 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
scheduling and management software, and both advertise on
the Internet. Network sells its software under the mark Auto-
Mate, while Systems’ product is sold under the registered
trademark ActiveBatch. Network decided to advertise its
product by purchasing certain keywords, such as “Active-
Batch,” which when keyed into various search engines, most
prominently Google and Microsoft Bing, produce a results
page showing “www.NetworkAutomation.com” as a spon-
sored link. Systems’ objection to Network’s use of its trade-
mark to interest viewers in Network’s website gave rise to this
trademark infringement action.
The district court was confronted with the question whether
Network’s use of ActiveBatch to advertise its products was a
clever and legitimate use of readily available technology, such
as Google’s AdWords, or a likely violation of the Lanham
Act, 15 U.S.C. § 1114. The court found a likelihood of initial
interest confusion by applying the eight factors we established
more than three decades ago in AMF Inc. v. Sleekcraft Boats,
599 F.2d 341 (9th Cir. 1979), and reasoning that the three
most important factors in “cases involving the Internet” are
(1) the similarity of the marks; (2) the relatedness of the
goods; and (3) the marketing channel used. The court there-
fore issued a preliminary injunction against Network’s use of
the mark ActiveBatch.
Mindful that the sine qua non of trademark infringement is
consumer confusion, and that the Sleekcraft factors are but a
nonexhaustive list of factors relevant to determining the likeli-
hood of consumer confusion, we conclude that Systems’
showing of a likelihood of confusion was insufficient to sup-
port injunctive relief. Therefore, we vacate the injunction and
reverse and remand.
I. FACTUAL AND PROCEDURAL BACKGROUND
Systems is a software engineering and consulting firm
founded in 1981. It has used the ActiveBatch trademark since
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3229
2000, and it procured federal registration of the mark in 2001.
Systems markets ActiveBatch software to businesses, which
use the product to centralize and manage disparate tasks. Net-
work is a software company founded in 1997 under the name
Unisyn. Its signature product, AutoMate, also provides busi-
nesses with job scheduling, event monitoring, and related ser-
vices. Network has approximately 15,000 total customers, and
between 4,000 and 5,000 active customers, including Fortune
500 companies and mid-sized and small firms. The cost of a
license to use AutoMate typically ranges from $995 to
$10,995. There is no dispute that Network and Systems are
direct competitors, or that ActiveBatch and AutoMate are
directly competing products.
Google AdWords is a program through which the search
engine sells “keywords,” or search terms that trigger the dis-
play of a sponsor’s advertisement. When a user enters a key-
word, Google displays the links generated by its own
algorithm in the main part of the page, along with the adver-
tisements in a separate “sponsored links” section next to or
above the objective results. See Appendix A.1 Multiple adver-
tisers can purchase the same keyword, and Google charges
sponsors based on the number of times users click on an ad
to travel from the search results page to the advertiser’s own
website. Network purchased “ActiveBatch” as a keyword
from Google AdWords and a comparable program offered by
Microsoft’s Bing search engine.
As a result, consumers searching for business software who
enter “ActiveBatch” as a search term would locate a results
page where the top objective results are links to Systems’ own
website and various articles about the product. See Appendix
A. In the “Sponsored Links” or “Sponsored Sites” section of
the page, above or to the right of the regular results, users see
1
Appendix A presents a compilation of exhibits from the district court
record showing results pages displayed when users search for “Active-
Batch” on Google or Bing.
3230 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
Network’s advertisement, either alone or alongside Systems’
own sponsored link. The text of Network’s advertisements
begin with phrases such as “Job Scheduler,” “Intuitive Job
Scheduler,” or “Batch Job Scheduling,” and end with the
company’s web site address, www.NetworkAutomation.com.
The middle line reads: “Windows Job Scheduling + Much
More. Easy to Deploy, Scalable. D/L Trial.”
On November 16, 2009, Systems demanded that Network
cease and desist from using the ActiveBatch mark in its
search engine advertising, as it was not “authorized to use
these marks in commerce.” In a second letter, Systems
explained that Network’s use of ActiveBatch in its Google
AdWords keyword advertising infringed Systems’ trademark
rights by deceiving customers into believing that Network’s
software products were affiliated with Systems’ products.
Systems threatened litigation unless Network immediately
ceased all use of Systems’ mark, including removing the mark
from the Google AdWords Program. Network responded that
its use of the ActiveBatch mark was non-infringing as a mat-
ter of law, and filed this lawsuit seeking a declaratory judg-
ment of non-infringement. Systems counterclaimed on
February 22, 2010, alleging trademark infringement under the
Lanham Act, 15 U.S.C. § 1114(1), and moved for a prelimi-
nary injunction against Network’s use of the ActiveBatch
mark pending trial.
The district court granted injunctive relief on April 30,
2010. Noting that the parties did not dispute the validity or
ownership of the ActiveBatch mark, the district court ruled
that Systems was likely to succeed in satisfying the Lanham
Act’s “use in commerce” requirement by showing that Net-
work “used” the mark when it purchased advertisements from
search engines triggered by the term “ActiveBatch.” Applying
the eight-factor Sleekcraft test for source confusion,2 the dis-
2
The eight factors we identified in Sleekcraft were: “[1] strength of the
mark; [2] proximity of the goods; [3] similarity of the marks; [4] evidence
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3231
trict court emphasized three factors it viewed as significant
for “cases involving the Internet”: the similarity of the marks,
relatedness of the goods or services, and simultaneous use of
the Web as a marketing channel. The district court concluded
that all three factors favored Systems: Network used the iden-
tical mark to sell a directly competing product, and both
advertised on the Internet.
The district court also concluded that Systems’ mark was
strong because, as a federally registered trademark, Active-
Batch is presumptively distinctive. It concluded that the
degree of consumer care suggested likely confusion because
“there is generally a low degree of care exercised by Internet
consumers.” Moreover, Network intentionally used Systems’
mark to advertise its own product. Finally, the district court
noted that neither party introduced evidence of actual confu-
sion, and that the likelihood of product expansion was not rel-
evant.
The district court also analyzed whether Network infringed
Systems’ mark by creating initial interest confusion — as
opposed to source confusion — which “occurs when the
defendant uses the plaintiff’s trademark in a manner calcu-
lated to capture initial consumer attention, even though no
actual sale is finally completed as a result of the confusion.”
(quoting Nissan Motor Co. v. Nissan Computer Co., 378 F.3d
1002, 1018 (9th Cir. 2004) (internal quotations omitted)).
Because the district court found that Network’s advertise-
ments did not clearly divulge their source, it concluded that
consumers might be confused into unwittingly visiting Net-
work’s website, allowing the company to “impermissibly cap-
italize[ ] on [Systems’] goodwill.”
of actual confusion; [5] marketing channels used; [6] type of goods and
the degree of care likely to be exercised by the purchaser; [7] defendant’s
intent in selecting the mark; and [8] likelihood of expansion of the product
lines.” 599 F.2d at 348-49.
3232 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
Based on its analysis of the Sleekcraft factors and its find-
ing of likely initial interest confusion, the district court con-
cluded that Systems had a strong likelihood of success on the
merits of its trademark infringement claim. It then presumed
a likelihood of irreparable harm, and concluded that the bal-
ance of hardships and the public interest favored Systems.
Following entry of the preliminary injunction, Network timely
appealed.
II. JURISDICTION AND STANDARD OF REVIEW
We have jurisdiction pursuant to 28 U.S.C. § 1292(a)(1).
We review the grant of a preliminary injunction for abuse of
discretion. See Advertise.com, Inc. v. AOL Advertising, Inc.,
616 F.3d 974, 976 (9th Cir. 2010). “The district court ‘should
be reversed if [it] based its decision on an erroneous legal
standard or on clearly erroneous findings of fact.’ ” Id. (quot-
ing Stormans, Inc. v. Selecky, 586 F.3d 1109, 1119 (9th Cir.
2009) (quotation marks omitted)).
III. DISCUSSION
“A plaintiff seeking a preliminary injunction must establish
that he is likely to succeed on the merits, that he is likely to
suffer irreparable harm in the absence of preliminary relief,
that the balance of equities tips in his favor, and that an
injunction is in the public interest.” Winter v. Natural Res.
Def. Council, Inc., 129 S. Ct. 365, 374 (2008). Network
argues that the district court erred by ruling that Systems was
likely to succeed on the merits of its trademark claim, and by
then presuming a likelihood of irreparable injury. It also con-
tends that the preliminary injunction is overbroad.
[1] To prevail on a claim of trademark infringement under
the Lanham Act, 15 U.S.C. § 1114, a party “must prove: (1)
that it has a protectible ownership interest in the mark; and (2)
that the defendant’s use of the mark is likely to cause con-
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3233
sumer confusion.” Dep’t of Parks & Recreation v. Bazaar Del
Mundo Inc., 448 F.3d 1118, 1124 (9th Cir. 2006).
[2] Network does not contest the ownership or its use of
the mark. We note that the district court correctly found the
prerequisite “use in commerce” in Network’s use of the mark
to purchase keywords to advertise its products for sale on the
Internet. Previously we have assumed, without expressly
deciding, that the use of a trademark as a search engine key-
word that triggers the display of a competitor’s advertisement
is a “use in commerce” under the Lanham Act. See Playboy
Enters., Inc. v. Netscape Commc’ns Corp., 354 F.3d 1020,
1024 (9th Cir. 2004); Brookfield, 174 F.3d at 1053; see also
Finance Express LLC v. Nowcom Corp., 564 F. Supp. 2d
1160, 1172-73 (C.D. Cal. 2008). We now agree with the Sec-
ond Circuit that such use is a “use in commerce” under the
Lanham Act. See Rescuecom Corp. v. Google Inc., 562 F.3d
123, 127 (2d Cir. 2009) (holding that Google’s sale of trade-
marks as search engine keywords is a use in commerce); see
also J. Thomas McCarthy, McCarthy on Trademarks &
Unfair Competition §§ 23:11.50, 25:70:25 (4th ed. 2010)
(suggesting that cases taking a more restrictive view of “use”
in this context are based on an erroneous interpretation of the
Lanham Act).
[3] This case, therefore, turns on whether Network’s use of
Systems’ trademark is likely to cause consumer confusion.
Network argues that its use of Systems’ mark is legitimate
“comparative, contextual advertising” which presents sophis-
ticated consumers with clear choices. Systems characterizes
Network’s behavior differently, accusing it of misleading con-
sumers by hijacking their attention with intentionally unclear
advertisements. To resolve this dispute we must apply the
Sleekcraft test in a flexible manner, keeping in mind that the
eight factors it recited are not exhaustive, and that only some
of them are relevant to determining whether confusion is
likely in the case at hand.
3234 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
A.
In Sleekcraft, we analyzed the likelihood of consumer
source confusion between boats that were sold under the
marks “Sleekcraft” and “Slickcraft.” We noted that “[w]hen
the goods produced by the alleged infringer compete for sales
with those of the trademark owner, infringement usually will
be found if the marks are sufficiently similar that confusion
can be expected.” 599 F.2d at 348. Although both boats were
designed for towing water skiers, and despite a potential over-
lap in the markets, we concluded that because “Slickcraft”
boats appealed to consumers desiring family recreation and
“Sleekcraft” boats appealed to the “highly skilled enthusiast”
requiring Sleekcraft’s higher speeds, the owners were not
direct competitors. Id. Because the goods were not competi-
tive, but merely related, factors in addition to the similarity of
the marks were “added to the calculus.” Id.
[4] We identified eight “relevant” factors for determining
whether consumers would likely be confused by related
goods: “[1] strength of the mark; [2] proximity of the goods;
[3] similarity of the marks; [4] evidence of actual confusion;
[5] marketing channels used; [6] type of goods and the degree
of care likely to be exercised by the purchaser; [7] defendant’s
intent in selecting the mark; and [8] likelihood of expansion
of the product lines.” Id. at 348-49. We also noted that “the
list is not exhaustive,” and that “[o]ther variables may come
into play depending on the particular facts presented.” Id. at
348, 348 n.11.
The Sleekcraft factors are intended as an adaptable proxy
for consumer confusion, not a rote checklist. See, e.g., For-
tune Dynamic, Inc. v. Victoria’s Secret Stores Brand Mgmt.,
Inc., 618 F.3d 1025, 1030 (9th Cir. 2010) (“This eight-factor
analysis is ‘pliant,’ illustrative rather than exhaustive, and best
understood as simply providing helpful guideposts.”); Dream-
werks Prod. Grp., Inc. v. SKG Studio, 142 F.3d 1127, 1129
(9th Cir. 1998) (“The factors should not be rigidly weighed;
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3235
we do not count beans.”); Eclipse Assoc. Ltd. v. Data Gen.
Corp., 894 F.2d 1114, 1118 (9th Cir. 1990) (“These tests were
not meant to be requirements or hoops that a district court
need jump through to make the determination.”).
When we first confronted issues of trademark infringement
and consumer confusion in the Internet context over a decade
ago in Brookfield, we noted that “[w]e must be acutely aware
of excessive rigidity when applying the law in the Internet
context; emerging technologies require a flexible approach.”
174 F.3d at 1054. There, Brookfield, a software company,
marketed an entertainment database program under the mark
MovieBuff. It sold the software, and offered access to the
database, on its website, moviebuffonline.com. Id. at 1041-42.
West Coast, a video retailer, had registered the mark The
Movie Buff’s Movie Store. West Coast operated a website
using the domain name moviebuff.com, which included a film
database that competed with Brookfield’s product. Id. at
1043.
[5] We held that Brookfield was likely to succeed in its
claim to be the senior user of MovieBuff, and that there was
a likelihood of source confusion stemming from West Coast’s
use of the mark in its domain name. Id. at 1053, 1060. “Heed-
ing our repeated warnings against simply launching into a
mechanical application of the eight-factor Sleekcraft test,” we
determined that three of the eight factors were the most
important in analyzing source confusion in the context of
Internet domain names: (1) the similarity of the marks; (2) the
relatedness of the goods and services offered; and (3) the
simultaneous use of the Internet as a marketing channel. Id.
at 1054 n.16. Reasoning that the two marks were virtually
identical in terms of sight, sound and meaning, id. at 1055,
that West Coast and Brookfield both offered products and ser-
vices relating to movies, id. at 1056, and that they both used
the Web as a marketing and advertising device, id. at 1057,
we concluded that consumer confusion was likely, particu-
larly given the nature of the consumers at issue, who included
3236 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
casual movie watchers unlikely to realize that they had mis-
takenly clicked on to West Coast’s site when they had
intended to reach Brookfield’s, id. at 1060.
Brookfield also asserted that West Coast infringed its mark
by causing initial interest confusion because it had included
MovieBuff in its “metatags,” code not visible to web users
embedded in a website to attract search engines seeking a cor-
responding keyword.3 Id. at 1061 n. 23. Although were we to
apply the same analysis in the metatags context as we did in
the domain name context, we would easily reach the same
conclusion as to each of the factors (with the possible excep-
tion of purchaser care), we declined to do so, reasoning that
the “question in the metatags context is quite different.” Id. at
1062. In the metatags context, the question was whether West
Coast could use the mark MovieBuff in the metatags of its
website to attract search engines to locate its site when the
keyword “MovieBuff” was entered, a question analogous to
the issue presented here. As in the domain name context, the
degree of care and sophistication of the consumer was a key
factor, although the outcome differed. We did not find a like-
lihood of source confusion because the results list from a
search for “MovieBuff” would result in a list that included
both Brookfield’s and West Coast’s websites, and if the con-
sumer clicked on West Coast’s site its own name was “promi-
nently display[ed].” Id. Thus a consumer was much less likely
to be confused about which site he was viewing.
Finding no source confusion, we nonetheless concluded
that West Coast’s use of MovieBuff in its metatags was likely
to cause initial interest confusion. That is, by using Brook-
field’s mark MovieBuff to direct persons searching for Brook-
field’s product to the West Coast site, West Coast derived an
3
Modern search engines such as Google no longer use metatags. Instead
they rely on their own algorithms to find websites. See McCarthy at
§ 25:69.
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3237
improper benefit from the goodwill Brookfield developed in
its mark. Id.
Five years later in Playboy, we considered the practice of
“keying” — another situation analogous to that here. Net-
scape operated a search engine that offered an early version
of a keyword advertising program. It sold lists of terms to
sponsors, and when users searched for the keywords on the
list, the sponsor’s advertisement would be displayed on the
results page. 354 F.3d at 1022. Netscape required its advertis-
ers from the adult entertainment industry to link their ads to
one such list that contained more than 400 terms, including
trademarks held by Playboy. Id. at 1023. Playboy sued, con-
tending that this practice infringed its trademarks in violation
of the Lanham Act. The district court entered summary judg-
ment in favor of Netscape. Id.
We reversed, holding that summary judgment was inappro-
priate because genuine issues of material fact existed as to
whether Netscape’s keying practices constituted actionable
infringement. Id. at 1031. Following Brookfield, we analyzed
the keying issue in terms of initial interest confusion, “find[-
ing] insufficient evidence to defeat summary judgment on any
other theory.” Id. at 1024 n.13. Playboy claimed that Netscape
“misappropriated the goodwill of [its] marks by leading Inter-
net users to competitors’ websites just as West Coast . . . mis-
appropriated the goodwill of Brookfield’s mark.” Id. at 1025.
In framing the initial interest confusion inquiry, we stressed
that Playboy’s infringement claim relied on the fact that the
linked banner advertisements were “unlabeled,” and were,
therefore, more likely to mislead consumers into believing
they had followed a link to Playboy’s own website. Id.
In Playboy, as in Brookfield, we applied the Sleekcraft test
flexibly, determining that evidence of actual confusion was
the most important factor. Id. at 1026. Playboy had introduced
an expert study showing that a “statistically significant num-
ber” of Internet users searching for the terms “playboy” and
3238 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
“playmate” would think that Playboy itself sponsored the ban-
ner advertisements which appeared on the search results page.
Id. We noted that this study “alone probably suffices to
reverse the grant of summary judgment,” but we nonetheless
analyzed other relevant Sleekcraft factors. Id. As to the
strength of the mark, we credited Playboy’s expert reports
showing it had created strong secondary meanings for “play-
boy” and “playmate.” This suggested that consumers who
entered these terms were likely searching for Playboy’s prod-
ucts in particular. Id. at 1028. Analyzing the nature of the
goods and consumer, we “presume[d] that the average
searcher seeking adult-oriented materials on the Internet is
easily diverted from a specific product he or she is seeking if
other options, particularly graphic ones, appear more quick-
ly.” Id. at 1028. We concluded that there were genuine issues
of material fact with respect to whether consumers were likely
to be confused by Netscape’s keying practices. Id. at 1031.
Concurring, Judge Berzon was struck by how analytically
similar the keyed advertisements in Playboy were to the
infringing metatags in Brookfield. We agree, and also find
similarity to the use of the keyword “ActiveBatch” in this
case. Judge Berzon cautioned that a broad reading of Brook-
field’s metatags holding could result in a finding of initial
interest confusion “when a consumer is never confused as to
source or affiliation, but instead knows, or should know, from
the outset that a product or web link is not related to that of
the trademark holder because the list produced by the search
engine so informs him.” Id. at 1034-35 (Berzon, J., concur-
ring). She clarified that the Playboy panel’s holding was lim-
ited to “situations in which the banner advertisements are not
labeled or identified.” Id. at 1036.
Judge Berzon analogized the experience of browsing
clearly labeled keyword advertisements to shopping at
Macy’s, explaining that if a shopper en route to the Calvin
Klein section is diverted by a prominently displayed Charter
Club (Macy’s own brand) collection and never reaches the
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3239
Calvin Klein collection, it could not be said that Macy’s had
infringed on Calvin Klein’s trademark by diverting the cus-
tomer to it with a clearly labeled, but more prominent display.
Id. at 1035. Therefore, it would be wrong to expand the initial
interest confusion theory of infringement beyond the realm of
the misleading and deceptive to the context of legitimate com-
parative and contextual advertising.
B.
Here we consider whether the use of another’s trademark
as a search engine keyword to trigger one’s own product
advertisement violates the Lanham Act. We begin by examin-
ing the Sleekcraft factors that are most relevant to the determi-
nation whether the use is likely to cause initial interest
confusion.4 While the district court analyzed each of the
Sleekcraft factors, it identified the three most important fac-
tors as (1) the similarity of the marks, (2) the relatedness of
the goods or services, and (3) the simultaneous use of the
Web as a marketing channel, for any case addressing trade-
mark infringement on the Internet. For this proposition the
district court cited GoTo.com, Inc. v. Walt Disney Co., 202
F.3d 1199 (9th Cir. 2000), which followed Brookfield in
emphasizing these three factors. See GoTo.com, 202 F.3d at
1205; Brookfield, 174 F.3d at 1054 n.16.
[6] However, we did not intend Brookfield to be read so
expansively as to forever enshrine these three factors — now
often referred to as the “Internet trinity” or “Internet troika”
— as the test for trademark infringement on the Internet.
Brookfield was the first to present a claim of initial interest
confusion on the Internet; we recognized at the time it would
not be the last, and so emphasized flexibility over rigidity.
Depending on the facts of each specific case arising on the
Internet, other factors may emerge as more illuminating on
4
Systems’ argument rests only on the theory of initial interest confusion.
It does not argue source confusion.
3240 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
the question of consumer confusion. In Brookfield, we used
the “troika” factors to analyze the risk of source confusion
generated by similar domain names, but we did not wholesale
adopt them in the metatag analysis. 174 F.3d at 1054-55. Sub-
sequent courts similarly have found the “troika” helpful to
resolve disputes involving websites with similar names or
appearances. See, e.g., Internet Specialties West, Inc. v.
Milon-DiGiorgio Enters., Inc., 559 F.3d 985, 988-89 (9th Cir.
2009); Perfumebay.com Inc. v. eBay, Inc., 506 F.3d 1165,
1169, 1173 (9th Cir. 2007); Interstellar Starship Servs., Ltd.
v. Epix, Inc., 304 F.3d 936, 939, 942 (9th Cir. 2002);
GoTo.com, 202 F.3d at 1203-05. The leading trademark trea-
tise correctly explains that the “troika” analysis “is appropri-
ate for domain name disputes.” McCarthy at § 24:39.
[7] Given the multifaceted nature of the Internet and the
ever-expanding ways in which we all use the technology,
however, it makes no sense to prioritize the same three factors
for every type of potential online commercial activity. The
“troika” is a particularly poor fit for the question presented
here. See Jonathan Moskin, Virtual Trademark Use — The
Parallel World of Keyword Ads, 98 Trademark Reporter 873,
892-93 (2008) (arguing that the “troika” is inadequate for ana-
lyzing trademark infringement claims based on search engine
keyword advertising because it omits important factors). The
potential infringement in this context arises from the risk that
while using Systems’ mark to search for information about its
product, a consumer might be confused by a results page that
shows a competitor’s advertisement on the same screen, when
that advertisement does not clearly identify the source or its
product.
In determining the proper inquiry for this particular trade-
mark infringement claim, we adhere to two long stated princi-
ples: the Sleekcraft factors (1) are non-exhaustive, and (2)
should be applied flexibly, particularly in the context of Inter-
net commerce. Finally, because the sine qua non of trademark
infringement is consumer confusion, when we examine initial
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3241
interest confusion, the owner of the mark must demonstrate
likely confusion, not mere diversion.
We turn to an examination of each Sleekcraft factor to ana-
lyze whether there is a likelihood of consumer confusion in
this case, assigning each factor appropriate weight in accor-
dance with its relevance to the factual circumstances pre-
sented here.
1. Strength of the Mark
“The stronger a mark — meaning the more likely it is to be
remembered and associated in the public mind with the
mark’s owner — the greater the protection it is accorded by
the trademark laws.” Brookfield, 174 F.3d at 1058. Two rele-
vant measurements are conceptual strength and commercial
strength. Conceptual strength involves classification of a mark
“along a spectrum of generally increasing inherent distinctive-
ness as generic, descriptive, suggestive, arbitrary, or fanciful.”
Id. “A mark’s conceptual strength depends largely on the
obviousness of its connection to the good or service to which
it refers.” Fortune Dynamic, 618 F.3d at 1032-33. Federal
trademark “[r]egistration alone may be sufficient in an appro-
priate case to satisfy a determination of distinctiveness.”
Lahoti v. VeriCheck, Inc., 586 F.3d 1190, 1199 (9th Cir.
2009). However, “while the registration adds something on
the scales, we must come to grips with an assessment of the
mark itself.” Zobmondo Entertainment, LLC v. Falls Media,
LLC, 602 F.3d 1108, 1115 (9th Cir. 2010). Commercial
strength is based on “actual marketplace recognition,” and
thus “advertising expenditures can transform a suggestive
mark into a strong mark.” Brookfield, 174 F.3d at 1058.
[8] This factor is probative of confusion here because a
consumer searching for a generic term is more likely to be
searching for a product category. See id. at 1058 n.19
(“Generic terms are those used by the public to refer generally
to the product rather than a particular brand of the product.”).
3242 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
That consumer is more likely to expect to encounter links and
advertisements from a variety of sources. By contrast, a user
searching for a distinctive term is more likely to be looking
for a particular product, and therefore could be more suscepti-
ble to confusion when sponsored links appear that advertise
a similar product from a different source. See 1-800 Contacts,
Inc. v. Lens.com, Inc., ___ F. Supp. 2d ___, 2010 WL
5150800 at *17 (D. Utah 2010) (determining that “1800 Con-
tacts” was a weak mark in a keyword advertising case because
the “nature of how third parties use generic and descriptive
words on search engines” suggested that users who entered
the term were likely searching for a type of product). On the
other hand, if the ordinary consumers of this particular prod-
uct are particularly sophisticated and knowledgeable, they
might also be aware that Systems is the source of ActiveBatch
software and not be confused at all.
[9] The district court acknowledged that the parties failed
to address the strength of the mark, but it concluded that the
factor favors Systems. It reasoned that ActiveBatch is a sug-
gestive mark because it “requires a mental leap from the mark
to the product,” (quoting Brookfield, 174 F.3d at 1058), and
as a registered trademark it is “inherently distinctive.” We
agree. Because the mark is both Systems’ product name and
a suggestive federally registered trademark, consumers
searching for the term are presumably looking for its specific
product, and not a category of goods. Nonetheless, that may
not be the end of the inquiry about this factor, as the sophisti-
cation of the consumers of the product may also play a role.
The district court properly declined to consider commercial
strength, which, as an evidence-intensive inquiry, is unneces-
sary at the preliminary injunction stage.
2. Proximity of the Goods
“Related goods are generally more likely than unrelated
goods to confuse the public as to the producers of the goods.”
Brookfield, 174 F.3d at 1055. “[T]he danger presented is that
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3243
the public will mistakenly assume there is an association
between the producers of the related goods, though no such
association exists.” Sleekcraft, 599 F.2d at 350. The proximity
of goods is measured by whether the products are: (1) com-
plementary; (2) sold to the same class of purchasers; and (3)
similar in use and function. Id.
The proximity of the goods was relevant in Playboy, where
unsophisticated consumers were confronted with unlabeled
banner advertisements that touted adult-oriented material very
similar to Playboy’s own products. There, we concluded that
under the circumstances, the relatedness of the goods bol-
stered the likelihood of confusion, and therefore favored Play-
boy. Playboy, 354 F.3d at 1028. However, the proximity of
the goods would become less important if advertisements are
clearly labeled or consumers exercise a high degree of care,
because rather than being misled, the consumer would merely
be confronted with choices among similar products. Id. at
1035 (Berzon, J., concurring) (“[S]uch choices do not consti-
tute trademark infringement off the internet, and I cannot
understand why they should on the internet.”).
[10] Because the products at issue here are virtually inter-
changeable, this factor may be helpful, but it must be consid-
ered in conjunction with the labeling and appearance of the
advertisements and the degree of care exercised by the con-
sumers of the ActiveBatch software. By weighing this factor
in isolation and failing to consider whether the parties’ status
as direct competitors would actually lead to a likelihood of
confusion, the district court allowed this factor to weigh too
heavily in the analysis.
3. Similarity of the Marks
“[T]he more similar the marks in terms of appearance,
sound, and meaning, the greater the likelihood of confusion.”
Brookfield, 174 F.3d at 1054. “Where the two marks are
entirely dissimilar, there is no likelihood of confusion.” Id.
3244 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
“Similarity of the marks is tested on three levels: sight, sound,
and meaning. Each must be considered as they are encoun-
tered in the marketplace.” Sleekcraft, 599 F.2d at 351 (cita-
tions omitted).
In Sleekcraft, we concluded that the marks “Sleekcraft” and
“Slickcraft” were similar in terms of sight, sound, and mean-
ing by examining the actual situations in which consumers
were likely to read, hear, and consider the meaning of the
terms. Id. at 351-52. Such an inquiry is impossible here where
the consumer does not confront two distinct trademarks.
Rather, after entering one company’s mark as a search term,
the consumer sees a competitor’s sponsored link that displays
neither company’s trademarks. The district court erroneously
treated “ActiveBatch,” the keyword purchased by Network, as
conceptually separate from ActiveBatch the trademark owned
by Systems. This is an artificial distinction that does not
reflect what consumers “encountered in the marketplace.”
Again, however, because the consumer keys in Systems’
trademark, which results in Network’s sponsored link,
depending on the labeling and appearance of the advertise-
ment, including whether it identifies Network’s own mark,
and the degree of care and sophistication of the consumer, it
could be helpful in determining initial interest confusion.
4. Evidence of Actual Confusion
“[A] showing of actual confusion among significant num-
bers of consumers provides strong support for the likelihood
of confusion.” Playboy, 354 F.3d at 1026 (citing Thane Int’l,
Inc. v. Trek Bicycle Corp., 305 F.3d 894, 902 (9th Cir. 2002)
(“Evidence of actual confusion constitutes persuasive proof
that future confusion is likely . . . . If enough people have
been actually confused, then a likelihood that people are con-
fused is established.”). However, “actual confusion is not nec-
essary to a finding of likelihood of confusion under the
Lanham Act.” Academy of Motion Picture Arts & Sciences v.
Creative House Promotions, Inc., 944 F.2d 1446, 1456 (9th
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3245
Cir. 1991) (citing American Int’l Group, Inc. v. American
Int’l Bank, 926 F.2d 829, 832 (9th Cir. 1991)). Indeed,
“[p]roving actual confusion is difficult . . . and the courts have
often discounted such evidence because it was unclear or
insubstantial.” Sleekcraft, 599 F.2d at 352.
[11] In Playboy, the expert report showing a significant
number of users were confused by the keying practice at issue
was strong evidence that Playboy’s infringement claim should
be allowed to proceed. 354 F.3d at 1027. Playboy, however,
was decided at the summary judgment stage, whereas here we
examine a sparse record supporting preliminary injunctive
relief. As the district court noted, neither Network nor Sys-
tems provided evidence regarding actual confusion, which is
not surprising given the procedural posture. Therefore, while
this is a relevant factor for determining the likelihood of con-
fusion in keyword advertising cases, its importance is dimin-
ished at the preliminary injunction stage of the proceedings.
The district court correctly concluded that this factor should
be accorded no weight.
5. Marketing Channels
“Convergent marketing channels increase the likelihood of
confusion.” Sleekcraft, 599 F.2d at 353. In Sleekcraft, the two
products were sold in niche marketplaces, including boat
shows, specialty retail outlets, and trade magazines. Id. at 353.
However, this factor becomes less important when the mar-
keting channel is less obscure. Today, it would be the rare
commercial retailer that did not advertise online, and the
shared use of a ubiquitous marketing channel does not shed
much light on the likelihood of consumer confusion. See
Playboy, 354 F.3d at 1028 (“Given the broad use of the Inter-
net today, the same could be said for countless companies.
Thus, this factor merits little weight.”).
Therefore, the district court’s determination that because
both parties advertise on the Internet this factor weighed in
favor of Systems was incorrect.
3246 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
6. Type of Goods and Degree of Care
“Low consumer care . . . increases the likelihood of confu-
sion.” Playboy, 354 F.3d at 1028. “In assessing the likelihood
of confusion to the public, the standard used by the courts is
the typical buyer exercising ordinary caution . . . . When the
buyer has expertise in the field, a higher standard is proper
though it will not preclude a finding that confusion is likely.
Similarly, when the goods are expensive, the buyer can be
expected to exercise greater care in his purchases; again,
though, confusion may still be likely.” Sleekcraft, 599 F.2d at
353 (citations omitted).
[12] The nature of the goods and the type of consumer is
highly relevant to determining the likelihood of confusion in
the keyword advertising context. A sophisticated consumer of
business software exercising a high degree of care is more
likely to understand the mechanics of Internet search engines
and the nature of sponsored links, whereas an un-savvy con-
sumer exercising less care is more likely to be confused. The
district court determined that this factor weighed in Systems’
favor because “there is generally a low degree of care exer-
cised by Internet consumers.” However, the degree of care
analysis cannot begin and end at the marketing channel. We
still must consider the nature and cost of the goods, and
whether “the products being sold are marketed primarily to
expert buyers.” Brookfield, 174 F.3d at 1060.
In Brookfield, the websites were visited by both sophisti-
cated entertainment industry professionals and amateur film
fans, which supported the conclusion that at least some of the
consumers were likely to exercise a low degree of care. Id. at
1056. In Playboy, the relevant consumer was looking for
cheap, interchangeable adult-oriented material, which simi-
larly led to our court’s finding that the consumers at issue
would exercise a low degree of care. 354 F.3d at 1029. In
both cases, we looked beyond the medium itself and to the
nature of the particular goods and the relevant consumers.
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3247
We have recently acknowledged that the default degree of
consumer care is becoming more heightened as the novelty of
the Internet evaporates and online commerce becomes com-
monplace. In Toyota Motor Sales v. Tabari, 610 F.3d 1171
(9th Cir. 2010), we vacated a preliminary injunction that pro-
hibited a pair of automobile brokers from using Toyota’s
“Lexus” mark in their domain names.5 We determined that it
was unlikely that a reasonably prudent consumer would be
confused into believing that a domain name that included a
product name would necessarily have a formal affiliation with
the maker of the product, as “[c]onsumers who use the inter-
net for shopping are generally quite sophisticated about such
matters.” Id. at 1178. The Tabari panel reasoned,
[I]n the age of FIOS, cable modems, DSL and T1
lines, reasonable, prudent and experienced internet
consumers are accustomed to such exploration by
trial and error. They skip from site to site, ready to
hit the back button whenever they’re not satisfied
with a site’s contents. They fully expect to find some
sites that aren’t what they imagine based on a glance
at the domain name or search engine summary. Out-
side the special case of . . . domains that actively
claim affiliation with the trademark holder, consum-
ers don’t form any firm expectations about the spon-
sorship of a website until they’ve seen the landing
page — if then.
Id. at 1179 (citations omitted).
5
The Tabari court applied the nominative fair use test rather than the
Sleekcraft factors, but it explained that Sleekcraft’s consumer confusion
inquiry was “analogous.” Id. at 1176. Network has not argued that nomi-
native fair use applies here. We find the initial interest confusion analysis
more appropriate for the circumstances of this case. Cf. New Kids on the
Block v. News Am. Publ’g, Inc., 971 F.2d 302, 308 (9th Cir. 1992)
(explaining that nominative fair use applies when “the only word reason-
ably available to describe a particular thing is pressed into service”).
3248 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
We further explained that we expect consumers searching
for expensive products online to be even more sophisticated.
Id. at 1176 (“Unreasonable, imprudent and inexperienced
web-shoppers are not relevant.”).
[13] Therefore the district court improperly concluded that
this factor weighed in Systems’ favor based on a conclusion
reached by our court more than a decade ago in Brookfield
and GoTo.com that Internet users on the whole exercise a low
degree of care. While the statement may have been accurate
then, we suspect that there are many contexts in which it no
longer holds true.
7. Defendant’s Intent
“When the alleged infringer knowingly adopts a mark simi-
lar to another’s, reviewing courts presume that the defendant
can accomplish his purpose: that is, that the public will be
deceived.” Sleekcraft, 599 F.2d at 354. Nevertheless, we have
also “recognized that liability for infringement may not be
imposed for using a registered trademark in connection with
truthful comparative advertising.” Lindy Pen Co., Inc. v. Bic
Pen Corp., 725 F.2d 1240, 1248 (9th Cir. 1984).
Therefore, much like the proximity of the goods, the defen-
dant’s intent may be relevant here, but only insofar as it bol-
sters a finding that the use of the trademark serves to mislead
consumers rather than truthfully inform them of their choice
of products. The district court incorrectly considered the
intent factor in isolation, and concluded that it weighed in
Systems’ favor without first determining that Network
intended to deceive consumers rather than compare its prod-
uct to ActiveBatch.
8. Likelihood of Expansion of the Product Lines
“Inasmuch as a trademark owner is afforded greater protec-
tion against competing goods, a ‘strong possibility’ that either
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3249
party may expand his business to compete with the other will
weigh in favor of finding that the present use is infringing.
When goods are closely related, any expansion is likely to
result in direct competition.” Sleekcraft, 599 F.2d at 354 (cita-
tions omitted). Where two companies are direct competitors,
this factor is unimportant. Cf. Brookfield, 174 F.3d at 1060.
Therefore, the district court correctly declined to consider the
likelihood of expansion.
9. Other Relevant Factors
[14] The eight Sleekcraft factors are “not exhaustive. Other
variables may come into play depending on the particular
facts presented.” Sleekcraft, 599 F.2d at 348 n.11. In the key-
word advertising context the “likelihood of confusion will
ultimately turn on what the consumer saw on the screen and
reasonably believed, given the context.” Hearts on Fire Co.
v. Blue Nile, Inc., 603 F. Supp. 2d 274, 289 (D. Mass. 2009).6
In Playboy, we found it important that the consumers saw
banner advertisements that were “confusingly labeled or not
labeled at all.” 354 F.3d at 1023. We noted that clear labeling
“might eliminate the likelihood of initial interest confusion
that exists in this case.” Id. at 1030 n.43.
[15] The appearance of the advertisements and their sur-
rounding context on the user’s screen are similarly important
here. The district court correctly examined the text of Net-
work’s sponsored links, concluding that the advertisements
did not clearly identify their source. However, the district
court did not consider the surrounding context. In Playboy,
we also found it important that Netscape’s search engine did
6
The Hearts on Fire court identified a new seven-factor test to deter-
mine whether there is a likelihood of consumer confusion arising from a
firm’s use of a competitor’s trademark as a search engine keyword trigger-
ing its own sponsored links. 603 F. Supp. 2d at 289. Network urges us to
adopt the Hearts on Fire factors. While we agree that the decision’s rea-
soning is useful, we decline to add another multi-factor test to the extant
eight-factor Sleekcraft test.
3250 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
not clearly segregate the sponsored advertisements from the
objective results. 354 F.3d at 1030. Here, even if Network has
not clearly identified itself in the text of its ads, Google and
Bing have partitioned their search results pages so that the
advertisements appear in separately labeled sections for
“sponsored” links. The labeling and appearance of the adver-
tisements as they appear on the results page includes more
than the text of the advertisement, and must be considered as
a whole.
C.
[16] Given the nature of the alleged infringement here, the
most relevant factors to the analysis of the likelihood of con-
fusion are: (1) the strength of the mark; (2) the evidence of
actual confusion; (3) the type of goods and degree of care
likely to be exercised by the purchaser; and (4) the labeling
and appearance of the advertisements and the surrounding
context on the screen displaying the results page.
[17] The district court did not weigh the Sleekcraft factors
flexibly to match the specific facts of this case. It relied on the
Internet “troika,” which is highly illuminating in the context
of domain names, but which fails to discern whether there is
a likelihood of confusion in a keywords case. Because the
linchpin of trademark infringement is consumer confusion,
the district court abused its discretion in issuing the injunc-
tion. See United States v. Hinkson, 585 F.3d 1247, 1262 (9th
Cir. 2009) (en banc) (holding that a district court abuses its
discretion by failing to identify the correct legal rule to
apply); see also Abercrombie & Fitch Co. v. Moose Creek,
Inc., 486 F.3d 629, 637 (9th Cir. 2007) (holding that the dis-
trict court abused its discretion in its application of the Sleek-
craft factors). We need not reach the three remaining
preliminary injunction elements, or consider the remaining
issues on appeal. See Advertise.com, Inc. v. AOL Advertising,
Inc., 616 F.3d 974, 982 (9th Cir. 2010).
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3251
IV. CONCLUSION
We REVERSE the district court’s order granting Systems’
motion for a preliminary injunction, VACATE the injunction,
and REMAND for further proceedings consistent with this
opinion.
3252 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
APPENDIX A
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3253
3254 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3255
3256 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3257
3258 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS
NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS 3259
3260 NETWORK AUTOMATION v. ADVANCED SYSTEMS CONCEPTS