Criteo

Advertising

Criteo loaded on 88 sites in our October 2026 scan: 4% of the 2,450 most-visited sites we checked, before any visitor had given consent.

Category: Advertising. A company can do several jobs; this is its main role on the pages we saw.

Its cookies typically last about 13 months. On 66% of the sites where it loaded, a consent banner was already present but hadn't been answered yet. It's especially common on .com.br sites: 30% of them load it, versus 4% of all sites we scanned.

About Criteo

Criteo is a French advertising-technology company specializing in retargeting: ads that follow a visitor to another site after they viewed or added a product without buying.

Its script logs which products a visitor viewed on the site and stores that in a cookie such as cto_bundle, which Criteo later matches when the visitor lands on a different, participating site to decide what ad to show.

Criteo participates in both the Network Advertising Initiative and the EDAA's European opt-out programs.

Often loaded alongside

Sites that load Criteo most often also load Google (95%), Google Ads (92%), Google Analytics (89%), Xandr (Microsoft) (55%), and Amazon Advertising (45%).

Domains it loads from

gum.criteo.com
grid-bidder.criteo.com
ssp-sync.criteo.com
static.criteo.net
dynamic.criteo.com
sslwidget.criteo.com
dis.criteo.com
widget.us.criteo.com
widget.as.criteo.com
imageproxy.eu.criteo.net
rtb.fr3.eu.criteo.com
ads.eu.criteo.com
cat.nl3.eu.criteo.com
client-side-metrics.nl3.eu.criteo.net
d.criteo.com
gum.us.criteo.com
b.us5.us.criteo.com
d.us.criteo.com
csp.criteo.net
static.criteo.com
bidder.criteo.com
staticassets-creator-design.criteo.net
gum.as.criteo.com

Cookies

cto_bundle58 sites

Sites that load Criteo

The highest-ranked 30 of 88 sites.

samsung.com4 tracking companies
alibaba.com7 tracking companies
globo.com24 tracking companies
walmart.com2 tracking companies
npr.org9 tracking companies
indiatimes.com18 tracking companies
uol.com.br17 tracking companies
nbcnews.com20 tracking companies
elmundo.es20 tracking companies
costco.com3 tracking companies

Show 20 more sites

olx.com.br10 tracking companies
terra.com.br23 tracking companies
vnexpress.net14 tracking companies
mundodeportivo.com13 tracking companies
netkeiba.com20 tracking companies
jalan.net27 tracking companies
tenki.jp27 tracking companies
oricon.co.jp36 tracking companies
haberler.com14 tracking companies
aternos.org19 tracking companies
syosetu.com24 tracking companies
carsensor.net31 tracking companies
24h.com.vn20 tracking companies
sozcu.com.tr11 tracking companies
sondakika.com9 tracking companies
immobiliare.it6 tracking companies
goodreturns.in25 tracking companies
kakuyomu.jp18 tracking companies
buzzfeed.com16 tracking companies
chordtela.com34 tracking companies

Understanding this page

What the tracker categories mean
What "advertising," "analytics," "social," "consent" and the rest actually mean for a company or a cookie, and how CookieTosser decides which one applies.
First-party vs third-party cookies (and why "first-party" still tracks you)
What the distinction actually means technically, why browsers only block one of the two, and how CNAME cloaking, server-side tagging and cookies like _ga let sites keep tracking under their own domain.
How to block or limit trackers
Browser privacy settings, content blockers, Global Privacy Control and clearing cookies compared honestly — what each one actually stops, what it doesn't, and what it costs you in return.