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https://www.leboncoin.fr

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Amsterdam, Netherlands
403 Forbidden
Checks
9
6 PASS 3 REVIEW
C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
TLS Certificate Expiry & Recommendations
279 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

279
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
B
CDN & Delivery
AWS CloudFront (Error from cloudfront)
REVIEW
AWS CloudFront (Error from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: AMS58-P3)
Got: x-amz-cf-id: jkolgMdeUhBtKb2AGfVOQ24OSEqtrZGgeAbAgrsCVdcze2WAtqdnPA==
Info::
CDN cache status: Error from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status Error from cloudfront Evidence x-amz-cf-id: jkolgMdeUhBtKb2AGfVOQ24OSEqtrZGgeAbAgrsCVdcze2WAtqdnPA==
A
DNS Records
4 A records, 32 ms lookup
PASS
4 A records, 32 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 18.239.50.18, 18.239.50.121, 18.239.50.45, 18.239.50.128
Info::
No IPv6 (AAAA) records
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 32 ms
Got: 32 ms
A18.239.50.18, 18.239.50.121, 18.239.50.45, 18.239.50.128
AAAA—
CNAME—
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 32 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A+
Redirect Chain
0 redirect(s), 36 ms total
PASS
0 redirect(s), 36 ms total

https://www.leboncoin.fr

36 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.leboncoin.fr40336 msHTTP/1.1
A
Crawlability
robots.txt present, no sitemap
PASS
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 3548 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt references sitemap

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

robots.txt 200 OK
Size 3548 B Sitemaps referenced 1 User-agents Googlebot-Mobile, AdsBot-Google, Google-Extended, facebookexternalhit, Slurp, slurp, ChatGPT-User, msnbot, proximic, OAI-SearchBot, Yahoo! Slurp, bingbot, ia_archiver, AdsBot-Google-Mobile, Mediapartners-Google, Googlebot Blocking No — crawling allowed
## It's forbidden to use search robots or other automatic methods to access Leboncoin.fr.
## Access is only permitted with special permission from Leboncoin.fr.

## Bots friendly
User-agent: Googlebot
User-agent: Googlebot-Mobile
User-agent: Yahoo! Slurp
User-agent: Slurp
User-agent: slurp
User-agent: msnbot
User-agent: bingbot
User-agent: ia_archiver
# friendly exceptions
Allow: /aide.htm
Allow: /aide_pro.htm
# www2 only
Allow: /livres
Allow: /linge_de_maison
Disallow: /ai
Disallow: /cp
Disallow: /support
Disallow: /account
Disallow: /account/index.html
Disallow: /dc/decisions_de_justice
Disallow: /dc/accessibilite
# Adviews
Disallow: /annonce
Disallow: /classified/latest/
Allow: /annonces
Disallow: /vi/*
Disallow: /li
Disallow: /*/*.htm
Disallow: /ad/animaux/*
Disallow: /ad/animaux_perdus/*
Disallow: /ad/autres/*
# Holidays calendar pages
Disallow: /*/vacancier/
# Bloquage des Demandes
Disallow: /*/demandes
# all
Disallow: /*th=0
Disallow: /aw
Disallow: /st
Disallow: /maintenance.html
Disallow: /pub
Disallow: /report-abuse
Disallow: /profile/
Disallow: /oauth2callback
Disallow: /discovery/*
# Blocage des /Recherche (Rav)
Disallow: /recherche
Disallow: /visual_similar_ads/*
Disallow: /annonces_similaires/*
Disallow: /boutique/*/*print=0
Disallow: /boutique/*.htm?*ca=*_k&*
Disallow: /popup_siege_social.htm
Disallow: /dc/popup_siege_social
Disallow: /*_mediametrie
#on autorise boutiques (.htm)
Allow: /boutique*
#on autorise les html
Allow: /*/*.html
Disallow: /*/bonnes_affaires
# Pages filtres
Allow: /f/*
# Gestion villes
Allow: /v/*
#Partners
Disallow: /partners/*
Allow: /partners/sofinco*
#Messaging
Disallow: /messages/*
Allow: /*

## AdsBot-Google and AdsBot-Google-Mobile
User-agent: AdsBot-Google
User-agent: AdsBot-Google-Mobile
# friendly exceptions
Allow: /recherche?category=2&*
Allow: /recherche?category=9&*
Allow: /recherche?category=10&*
Allow: /recherche?category=11&*
Allow: /recherche?category=13&*
Allow: /aide.htm
Allow: /aide_pro.htm
# www2 only
Allow: /livres
Allow: /linge_de_maison
Disallow: /ai
Disallow: /cp
Disallow: /support
Disallow: /account
Disallow: /account/index.html
Disallow: /dc/decisions_de_justice
Disallow: /dc/accessibilite
# Adviews
Disallow: /annonce
Disallow: /classified/latest/
Allow: /annonces
Disallow: /vi/*.htm
Disallow: /li
# Holidays calendar pages
Disallow: /*/vacancier/
# Bloquage des Demandes
Disallow: /*/demandes
# all
Disallow: /*th=0
Disallow: /aw
Disallow: /st
Disallow: /maintenance.html
Disallow: /pub
Disallow: /report-abuse
Disallow: /profile/
Disallow: /oauth2callback
Disallow: /boutique/*/*print=0
Disallow: /boutique/*.htm?*ca=*_k&*
Disallow: /popup_siege_social.htm
Disallow: /dc/popup_siege_social
Disallow: /*_mediametrie
Disallow: /discovery/*
#on autorise boutiques (.htm)
Allow: /boutique*
#on autorise les html
Allow: /*/*.html
#on bloque les annonces avec et sans parametres
Disallow: /*/*.htm
Disallow: /*/bonnes_affaires/
Disallow: /f/*
Allow: /*

# Allow specific Ads Googlebot to access all our pages
User-agent: Mediapartners-Google
Allow: /*

# Allow proximic to access all our pages
User-agent: proximic
Disallow:

# LLMs configuration
User-agent: Google-Extended
Disallow: /ad/
Allow: /*

User-agent: OAI-SearchBot
Disallow: /ad/
Allow: /*

User-agent: ChatGPT-User
Disallow: /ad/
Allow: /*

# Link to the sitemap index file
Sitemap: https://www.leboncoin.fr/auto-main.xml

Disallow: /app-router-poc
Disallow: /pages-router-poc

# Allow Meta's crawler for Instagram feature
User-agent: facebookexternalhit
Allow: /dc/cookies
Disallow: /*
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.leboncoin.fr/
301https://leboncoin.fr/

Preferred variant: www

HTTP → HTTPS

301http://www.leboncoin.fr/ → https://www.leboncoin.fr/

Consistent

A+
Domain Intelligence
leboncoin.fr — via NAMESHIELD, 19 years, 6 months old, hosted on AWS
PASS
leboncoin.fr — via NAMESHIELD, 19 years, 6 months old, hosted on AWS
Info::
Domain registered until Jan 17, 2027 (9 months remaining)
Info::
Registrar: NAMESHIELD
Info::
Hosting: AWS
Got: AS16509
Domain expiry

189 days

January 17, 2027

SSL certificate

279 days

Issued by Amazon

Domain age

19 years, 6 months

Registered January 15, 2007

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

18.239.50.18

Registrar

NAMESHIELD

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar NAMESHIELD
Created January 15, 2007 (19 years, 6 months ago)
Expires January 17, 2027 (9 months)
Last Updated January 20, 2026
Name Servers ns-1125.awsdns-12.org, ns-2035.awsdns-62.co.uk, ns-422.awsdns-52.com, ns-533.awsdns-02.net
Registrant ADEVINTA FRANCE
Hosting
IP Address 18.239.50.18
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)
A+
HTTP Probe Timing
Total 40 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
4 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
5 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
41 ms
Total Time Total request time from DNS lookup through full response.
41 ms

Connection waterfall

DNS Lookup 4 ms TCP Connect 1 ms TLS Handshake 5 ms Server Processing 31 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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