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mastodon.social

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

Security headers: B 83/100 (rank #74 of 461) · TLS: TLSv1.3 · Cert expires in 43 days (rank #65 of 459 soonest) · Response: 102.3 ms (rank #123 of 446)
Certificate valid for 43 more days (until Dec 14 14:08:23 2026 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNmastodon.social
Valid untilDec 14 14:08:23 2026 GMT
Days left43
TLS versionTLSv1.3
SAN entries3

Security headers (83/100, grade B)

HeaderStatus
strict-transport-securitymax-age=31557600
content-security-policybase-uri 'none'; default-src 'none'; frame-ancestors 'none'; font-src 'self' https://masto
x-frame-optionsDENY
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response102.3 ms
Fastest / slowest12.5 / 275.0 ms
HTTP status200 (https)
ServerMastodon

DNS & robots.txt

FieldValue
A records151.101.1.55, 151.101.129.55, 151.101.65.55, 151.101.193.55
Nameserversns1.exoscale.ch, ns1.exoscale.com, ns1.exoscale.io, ns1.exoscale.net
MX records1
robots.txtpresent (0 sitemap refs, 4 disallow rules)

How mastodon.social compares

SiteHeadersScoreCert days leftms
snapchat.comA100161144.9
x.comB8356436.2
facebook.comB837122.3
instagram.comB837208.0
linkedin.comB83172149.7
pinterest.comB83117457.9
threads.netB837166.0
whatsapp.comB837249.7

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