Likely Safe
Cstb.fr shows a low-risk profile as a website. No major malware/phishing detections were found, and 31.6-year domain history, public traffic rank, and business infrastructure support this assessment.
This domain was registered 31 years ago through the company NAMESHIELD
and ownership information is not publicly available.
Complaint contact not found.
About cstb.fr
We reviewed cstb.fr and found strong legitimacy signals. Current checks point to an established low-risk profile, with a trust score of 97/100 supporting that assessment. Key signals include no major malware/phishing detections, a long-term domain history, and strong independent trust.
Figure 2.
Website screenshot for Cstb.fr.
2026-07-27 12:23:56
FAQ
Is cstb.fr safe?
Yes, cstb.fr appears to be low-risk based on current analysis. No major malware or phishing threats were detected, and a long-term domain history and strong independent trust support this assessment.
Is cstb.fr legit or a scam?
Available data points to cstb.fr being a legitimate website rather than a fraudulent one. Independent trust signals support a credible online presence.
Why is cstb.fr considered safe?
Key factors include registrar information (NAMESHIELD), hosting in FR, and presence in public traffic rankings. Major malware and phishing engines did not report active blacklist detections at the time of review. The trust score blends security detections, domain and infrastructure signals, and on-page behavior patterns. Taken together, these factors support a low-risk assessment for this website.
Cstb Digital Footprints
A structured view of the site's detected themes, page signals, and related online footprint elements.
Bootstrap Framework
This site uses Bootstrap, a widely-adopted open-source framework for responsive web development. Bootstrap enables efficient creation of mobile-friendly interfaces through standardized components and styling.
Google Tag Manager
This website uses Google Tag Manager to add and update tracking tags on its website.
Google Maps
jQuery Library
Animate.css Framework
Social Media Links
The presence of social media links on the website indicates that it references social media accounts. This signal alone does not confirm ownership or authenticity of those profiles.
Long Term Domain
This site is registered for an extended period, which is generally a positive continuity signal.
Established Domain
This site has maintained active domain presence over time, indicating operational continuity.
High Trust Score
Verified Business Services
The domain cstb.fr publishes TXT verification records for multiple third-party business platforms. This indicates that the domain has been connected to those services at the DNS level.
Business Infrastructure
This domain is configured for several service layers, such as email delivery, platform verification, or security tooling. This reflects a broader operational setup than a minimal single-purpose deployment.
Domain Information
CreatedDecember 31, 1994 at 11:00 PMUpdated: August 11, 2025 at 8:54 AM ยท Expires: November 21, 2031 at 11:07 PM
Domain Age31.6 years
RegistrarNAMESHIELD
Domain StatusA C T I V E
Registry SourceFRNIC
Top Level Domain.frCountry Code TLD
Technical Details
HTTP status301
IP Address81.92.94.54
Hostnamecdn.perf1.com
Hosting ProviderAS20756 NAMESHIELD SASAngers, Pays de la Loire, FR
SSL CertificateWE1TLSv1.3 ยท Valid for: 3 months ยท from June 13, 2026 at 10:00 PM ยท to September 11, 2026 at 10:59 PM
Name Serversnsa.perf1.fr nsb.perf1.com nsc.perf1.com nsz.perf1.com
Content Analysis
Website titleCSTB - Le futur en construction
Website descriptionLe CSTB est un EPIC qui accompagne les acteurs de la construction dans ses grandes mutations.
Primary Language
Mentioned hosts (22)
unpkg.comfr.linkedin.comwww.batipedia.comregion1.analytics.google.commaps.googleapis.comwww.google.comwww.cstb.frwww.googletagmanager.comcdnjs.cloudflare.comcstb.frboutique.cstb.frwww.linkedin.comtwitter.comwww.youtube.comcstbgroup.matomo.cloud
and 7 more
Security Analysis
Detection SignaturesThese signatures are used to generate the security fingerprint below.
Bootstrap FrameworkjQuery LibraryAnimate.css FrameworkSocial Media Links
Verified ServicesThis domain has been verified by the following legitimate services and organizations, confirming authentic ownership and proper email security configuration.
Atlassian
Software development tools (Jira, Confluence).
DocuSign
Electronic signature and agreement platform.
Microsoft 365
Microsoft cloud productivity suite (Office, email, etc.).
MongoDB
NoSQL database platform.
Nitro
Security FingerprintUnique identifier based on site analysis
Cstb.fr falls outside the top 100,000 websites globally, which typically indicates a more specialized or localized audience.
Loading...
Provider warnings: 0/26 No provider warnings
This section shows what trusted security sources say about this site.
A warning appears when one or more sources report malware, phishing, abuse, or other safety concerns. Each row shows the source and its verdict.
If no source reports a warning, the site is shown as clear in this section.
BitDefender
Clean
Kaspersky
Clean
ESET
Clean
Sophos
Clean
Google Safebrowsing
Clean
Fortinet
Clean
G-Data
Clean
Webroot
Clean
Dr.Web
Clean
Forcepoint ThreatSeeker
Clean
CyRadar
Clean
Lionic
Clean
Quick Heal
Clean
Phishing Database
Clean
Phishtank
Clean
OpenPhish
Clean
alphaMountain.ai
Clean
Netcraft
Clean
Sucuri SiteCheck
Clean
Criminal IP
Clean
URLhaus
Clean
Emsisoft
Clean
Spam404
Clean
Trustwave
Clean
VX Vault
Clean
Quttera
Clean
Cstb.fr blocked? Check the provider verdict report created on July 27, 2026
Are You the Owner?
If you own Cstb.fr and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.
A website report warns you. A PC scan protects you.
Unsafe sites can leave adware, unwanted apps, or hidden malware in downloads and browser settings. Run Gridinsoft Anti-Malware to check what may already be on this Windows PC.
Checks active threats, startup items, and suspicious downloads
Finds adware and unwanted apps linked to unsafe websites
Shows scan results before you decide what to remove
Your comment is currently undergoing moderation and will be published shortly.
Help protect others by sharing this page on social media! The more people who know about cstb.fr, the fewer chances they have to deceive someone else.Help others evaluate cstb.fr by sharing this page on social media!
Help protect others by sharing this page on social media! The more people who know about cstb.fr, the fewer chances they have to deceive someone else. Help others evaluate cstb.fr by sharing this page on social media!