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facebook.com

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: social

Security headers: B 83/100 (rank #70 of 461) · TLS: TLSv1.3 · Cert expires in 7 days (rank #2 of 459 soonest) · Response: 122.3 ms (rank #162 of 446)
⚠️ Certificate expires in 7 days (Nov 8 23:59:59 2026 GMT). Renew now.

TLS certificate

FieldValue
IssuerDigiCert Inc
Subject CN*.facebook.com
Valid untilNov 8 23:59:59 2026 GMT
Days left7
TLS versionTLSv1.3
SAN entries11

Security headers (83/100, grade B)

HeaderStatus
strict-transport-securitymax-age=15552000; preload
content-security-policydefault-src blob: 'self' https://*.fbsbx.com *.facebook.com *.fbcdn.net *.facebook.net *.w
x-frame-optionsDENY
x-content-type-optionsnosniff
permissions-policyaccelerometer=(), attribution-reporting=(self), autoplay=(), bluetooth=(), browsing-topics
referrer-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response122.3 ms
Fastest / slowest101.1 / 142.2 ms
HTTP status200 (https)
Servern/a

DNS & robots.txt

FieldValue
A records157.240.11.35
Nameserversd.ns.facebook.com, a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com
MX records1
robots.txtpresent (0 sitemap refs, 652 disallow rules)

How facebook.com compares

SiteHeadersScoreCert days leftms
snapchat.comA100161144.9
x.comB8356436.2
instagram.comB837208.0
linkedin.comB83172149.7
pinterest.comB83117457.9
mastodon.socialB8343102.3
threads.netB837166.0
whatsapp.comB837249.7

Embed this badge

Show your grade in your README (free, auto-updates):

[![security](https://pseo.rovy.tech/api/v1/badge?url=https://facebook.com)](https://pseo.rovy.tech/sites/facebook-com.html)

Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.