Is criteo.com legit?

90
/ 100
Trusted
Industry: Professional Services

This site is highly trusted. It demonstrates strong security practices with modern TLS and robust email authentication, and has a well-established online identity with extensive legal and contact information.

Professional Services average: 81/100 · based on 22 sites

Checked: April 21, 2026 at 5:18 PM UTC

Is criteo.com a scam? Here's what we found.

Security 90/100

The overall security posture is very strong, featuring TLS 1.3, a valid SSL certificate, and HSTS enforcement. The only minor concern is a higher than ideal number of external scripts.

Identity 95/100

Criteo.com has a very strong and established identity, being over 20 years old with a long expiry date and publicly visible WHOIS information, which aligns with a reputable global company.

Reputation 90/100

The site holds a very strong global reputation, indicated by its high Tranco rank and clean DNS blacklists. The lack of a Trustpilot profile is not unusual for a large B2B entity.

Transparency 95/100

Criteo.com exhibits excellent transparency with readily available contact information, comprehensive branding, and an active presence across multiple social media platforms, making it easy for users to engage.

Compliance 100/100

The site demonstrates full compliance by providing both a privacy policy and terms of service pages, which is essential for user trust and legal adherence.

Infrastructure 95/100

The site's infrastructure is robust, with DMARC for email authentication, a present robots.txt, and fast page load times, all indicative of a well-managed and reliable online presence.

Signals Detected

[+]
Tranco Rank: Rank #116

This is one of the most visited websites globally

[+]
Structured Data: Found

Site has structured data markup

[?]
Trustpilot: No Trustpilot profile

This business has no Trustpilot presence — not unusual for smaller or newer companies

[+]
Domain Age: 20 years, 1 months

Domain created 2005-06-17T17:39:17Z (20 years, 1 months ago)

[?]
Registrar: Gandi SAS

Registered through Gandi SAS

[+]
Domain Expiry: 2035-06-17T17:39:17Z

Expires in 3344 days

[+]
DNSSEC: unsigned

DNSSEC status from WHOIS

[?]
Certificate Transparency: Unable to check

crt.sh returned status 502

[+]
SSL Certificate: Valid

Valid certificate, expires in 85 days

[?]
Certificate Issuer: Let's Encrypt

Certificate issued by Let's Encrypt

[+]
TLS Version: TLS 1.3

Connection uses TLS 1.3

[~]
External Scripts: 19 scripts

Excessive number of external scripts — may indicate malicious injection

[+]
robots.txt: Present

robots.txt has 61 directives and references a sitemap

[+]
HSTS Header: Present

Site enforces HTTPS via HSTS

[+]
Content Security Policy: Present

Site has Content Security Policy configured

[?]
Server: nginx

Web server: nginx

[+]
Google Web Risk: Clean

No threats detected by Google Web Risk

[+]
DNS Resolution: 3 IP(s)

Resolves to: 2620:12a:8000::4, 2620:12a:8001::4, 23.185.0.4

[+]
Email (MX Records): 1 record(s)

Mail servers: criteo-com.o-v1.mx.microsoft.

[+]
DMARC Record: Present

Domain has DMARC email authentication configured

[?]
Name Servers: 2 server(s)

DNS providers: ns2.criteo.com., ns1.criteo.com.

[+]
Branding: Complete

Site has custom branding and social media metadata

[+]
DNS Blacklists: Clean

Not found on any DNS blacklists

[?]
Web Archive: Unable to check

Could not query Wayback Machine

[+]
Website Status: Online

Website is live and responding

[+]
Contact Info: Found

Website appears to have contact information

[+]
Legal Pages: Privacy & Terms found

Website has both privacy policy and terms of service pages

[+]
Social Media Presence: 6 platforms

Website links to multiple social media platforms

[?]
Sitemap: Not found

No sitemap found — common for smaller sites

[+]
Page Load Time: 157ms

Fast page load

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Criteo.com is a major player in the ad-tech industry, providing advertising and marketing solutions globally. When evaluating a site like Criteo, which handles vast amounts of advertising data and serves as an intermediary between businesses and consumers, a high level of trust and security is paramount. A legitimate ad-tech company like Criteo needs to demonstrate strong infrastructure, transparent practices, and robust security measures to protect both its clients and the end-users who see its ads. From our analysis, Criteo.com largely aligns with the characteristics of a trusted, established business in its field. Its 20-year domain age and incredibly high global ranking (Tranco #115) are definitive indicators of a long-standing and significant operation. Most established ad tech or martech companies will have similarly aged domains, showcasing their longevity and market presence. Essential features like a valid SSL certificate, modern TLS, and HSTS are in place, which are non-negotiable for any site handling user data or serving advertisements today. While the presence of numerous external scripts is noted, in the context of an ad-tech platform, this often reflects integrations with various advertising partners and analytics tools, which, though they warrant monitoring, are common. The only significant missed opportunity is the unsigned DNSSEC, a useful, but not universally adopted, security layer for a domain of this stature. Overall, Criteo.com presents as a credible and mostly secure platform for its intended purpose.