Website reputation report

cstb.fr

Last checked 3 hours ago · Point-in-time assessment

● Evidence is limited

What is this website?

cstb.fr is currently classified in the Construction category based on observed public pages. The sampled pages were marked as French-language. Recurring page-metadata topics include recherche, toutes les, recherche et expertise.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

62/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History95 Infrastructure95 Website Security0 Security Hygiene80 Transparency48 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Independent evidence brief

What we observed about cstb.fr

Updated Oct 2, 2026

The latest scan examined 10 public pages on cstb.fr. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its homepage, the site says: Le CSTB est un EPIC qui accompagne les acteurs de la construction dans ses grandes mutations.

  • CSTB - Newsletter CONTACTLa lettre CONTACT est dédiée à la recherche au CSTB et traite des problématiques scientifiques liées aux grands…
  • CSTB - Qui sommes-nous ?Établissement public à caractère industriel, le CSTB a pour mission de créer des connaissances et les partager, d’accompagner…
  • CSTB - Recherche et expertiseLe CSTB accompagne les politiques publiques et les acteurs économiques au service des usagers du bâtiment et de…

Registrar and domain history

Registered on Dec 31, 1994. Registrar: NAMESHIELD.

Recorded expiry date: Nov 21, 2031. Registry data can change.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

TLS validity was not confirmed by the available evidence.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 62/100. Evidence Confidence: 70%. These measure different things.

Public content profile

Pages reviewed on cstb.fr

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

CSTB - Le futur en constructionLe CSTB est un EPIC qui accompagne les acteurs de la construction dans ses grandes mutations. CSTB - Nous contacterhttps://www.cstb.fr/nous-contacter CSTB - Newsletter CONTACTLa lettre CONTACT est dédiée à la recherche au CSTB et traite des problématiques scientifiques liées aux grands enjeux sociétaux du secteur du bâtiment. CSTB - Qui sommes-nous ?Établissement public à caractère industriel, le CSTB a pour mission de créer des connaissances et les partager, d’accompagner l’innovation et de valoriser la performance des produi CSTB - Recherche et expertiseLe CSTB accompagne les politiques publiques et les acteurs économiques au service des usagers du bâtiment et de l'environnement urbain. CSTB - Centre de ressourcesDocumentations, aides méthodologiques, informations claires et scientifiquement fondées : les ressources du CSTB pour rester informé et vous former. CSTB - Toutes les offres du CSTBRetrouvez avec une recherche par critères les offres du CSTB qui correspondent à vos besoins CSTB - Bases de donnéesLe CSTB, centre de référence du domaine de la construction, met à disposition ses bases de données. Consultez les données et documents de référence. CSTB - Toutes les actualitésRecherche, expertises, événements, partenariats : retrouvez toutes les actualités du CSTB et de ses filiales. CSTB - Tous nos communiqués de presseAccéder aux communiqués de presse du CSTB classés par thématiques : l’établissement, recherche et expertise, offres, partenariats et événements.

Public page evidence

Topics and keywords observed on cstb.fr

8 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

rechercheTitle, H1, Meta description5 sampled pages
toutes lesTitle, H1, Meta description2 sampled pages
recherche et expertiseTitle, H1, Meta description2 sampled pages
nousTitle, H12 sampled pages
centre deTitle, H1, Meta description2 sampled pages
constructionTitle, H1, Meta description2 sampled pages
offresTitle, H1, Meta description2 sampled pages
et deMeta description3 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
95/100

Domain registration age and expiry were checked.

InfrastructureWeight 10%
95/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
0/100

Evidence is unavailable.

Security HygieneWeight 15%
80/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
48/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLLocal antivirus is not enabled
Phishing.Database · exact hostnameLocal feed snapshot unavailable

Sampled scripts and pages

Resource antivirus is not enabled

0 resources checked · 27 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts27
Inline scripts4
Embedded frames1
External script hosts2

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domaincstb.fr
RegistrarNAMESHIELD
RegisteredDec 31, 1994
Domain age31 years
ExpiresNov 21, 2031
Registry statusesserver delete prohibited · server recover prohibited · server transfer prohibited · server update prohibited
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address152.89.172.56
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNCloudflare
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.cstb.fr/
Endpoint152.89.172.56
NetworkUnavailable
CDN and WAFCloudflare · Not detected
DNS surface24 records · 5 nameservers · 1 mail exchangers
Protection signals6 security headers · 4 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size94,259 bytes
HTTP check duration1,000 ms
Cookies observed2
Script resources27 · 2 external hosts
Frames and sampled checks1 frames · 0 resources checked

Encrypted transport

TLS certificate

Validity unavailable
StatusUnavailable
ProtocolUnknown
IssuerUnknown
Valid fromUnavailable
Valid untilUnavailable
Certificate namesUnavailable

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A152.89.172.56TTL —
A81.92.94.54TTL —
A81.92.95.55TTL —
AAAA2a01:c8:100::54TTL —
AAAA2a01:c8:101::55TTL —
AAAA2a09:35c0:102::56TTL —
NSnsa.perf1.frTTL —
NSnsb.perf1.comTTL —
NSnsc.perf1.comTTL —
NSnsz.perf1.comTTL —
NSnsz.perf1.frTTL —
MX0 cstb-fr.in.tmes.trendmicro.euTTL —
TXT5XXzcMnsaR2DCKgnWlb/ANu+z6Q=TTL —
TXTatlassian-domain-verification=eMrE1dkOqn2ZFmw/OPwMSS0THQFKbsNVj8pUYbdXFu7wT1FFpdWJpbRxuhkOSxSlTTL —
TXTdocusign=5b3fecf0-808e-4834-a1c0-b86d1461ecc8TTL —
TXTdocusign=a889d183-522f-4652-84b3-724e1241b04aTTL —
TXTdruide-validation-domaine=5f2dc170cb38d55f3f65b3f027ec06efTTL —
TXTJ7VbesUBRinXWFtgCDxiYrbHVp200rD/BublG3L+quL3tpDBi4fNwxOvUuK5vmAybETYejuM+/vFREFHzcV1tw==TTL —
TXTJJNVHruRtjs2vQ/982jdB2pNpd4=TTL —
TXTksh7fjg1mggndbw9q2tjmckq1v85knw3TTL —
TXTmongodb-site-verification=ewAOsKplqA8sscLaYtTf1hoNtd2HqSscTTL —
TXTMS=ms59930395TTL —
TXTnitro-verification-code=LTcxMjQ2NzQxMzQ0MjA5OTM2OTE=TTL —
TXTv=spf1 include:spf.tmes.trendmicro.com include:spf.tipimail.com ip4:46.235.17.249 ip4:46.235.17.250 ip4:46.235.17.251 ip4:46.235.17.252 include:eskerondemand.com ip4:83.118.197.50 ip4:159.117.240.108 ip4:82.97.16.59 include:_sp" "f-i.cegedim.fr ip4:82.97.8.85 ip4:82.97.8.87 include:amazonses.com -allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCMonitoring-only DMARC policy

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

6 observed
content-security-policypresent frame-ancestors 'self' *.cstb.fr *.batipedia.com https://cmsback-prod.cstb.local
permissions-policypresent fullscreen=()
referrer-policypresent no-referrer
strict-transport-securitypresent max-age=31536000; includeSubDomains
x-content-type-optionspresent nosniff
x-frame-optionspresent SAMEORIGIN

Response headers

Cookie protections

Passive observation
Cookies observed2
Missing Secure1
Missing HttpOnly0
Missing SameSite0

Only cookie attribute counts are retained. Cookie names and values are never stored. These observations are not proof of compromise and do not independently change the Safety Score.

Detected stack

Technologies

Bootstrap 80% Cloudflare 98% Google Tag Manager 96% Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

Structured facts

Website identity & response

Public page metadata
Page titleCSTB - Le futur en construction
First headingLe futur en construction
DescriptionLe CSTB est un EPIC qui accompagne les acteurs de la construction dans ses grandes mutations.
Canonical URLhttps://www.cstb.fr/
Final URLhttps://www.cstb.fr/
HTTP response200 · text/html; charset=utf-8 · 1000 ms
Languagefr
Structured typesNone observed
Page page detectedhttps://www.cstb.fr/groupeContact page detectedhttps://www.cstb.fr/nous-contacter
Local headers.permissions microphone restricted100% evidence confidence
Local headers.permissions payment restricted100% evidence confidence
1100% evidence confidence
Local headers.permissions usb restricted100% evidence confidence
Local headers.permissions geolocation restricted100% evidence confidence
1100% evidence confidence
fr100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.cors present100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
1100% evidence confidence
5100% evidence confidence
24100% evidence confidence
Local cookies.cookies missing httponly100% evidence confidence
Local cookies.cookies missing samesite100% evidence confidence
1100% evidence confidence
2100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
6100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.csp has default src100% evidence confidence
Local headers.csp has object src100% evidence confidence
1100% evidence confidence
Local headers.csp unsafe eval100% evidence confidence
Local headers.csp unsafe inline100% evidence confidence
Local headers.csp wildcard sources100% evidence confidence
1100% evidence confidence
31536000100% evidence confidence
Local headers.hsts preload100% evidence confidence
1100% evidence confidence
Local headers.permissions camera restricted100% evidence confidence

Connection path

Redirect chain

1 recorded hops
Hop 1https://www.cstb.fr/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

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Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
clear-shield-path-396

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

No meaningful changes recorded yet.

Website icon for cstb.fr

Visual evidence

Website screenshot

Screenshot of cstb.fr
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Questions about cstb.fr

FAQ

Still have questions? Contact us →
Is cstb.fr safe to visit?

The latest Safety Score is 62/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on cstb.fr?

External threat-provider coverage was unavailable for this scan, so malware status is unverified.

When was cstb.fr registered?

The public registry record shows Dec 31, 1994. Registration details may be privacy-protected or updated later.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.