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signal.org

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

Security headers: D 33/100 (rank #313 of 461) · TLS: TLSv1.3 · Cert expires in 32 days (rank #27 of 459 soonest) · Response: 92.8 ms (rank #109 of 446)

Certificate valid for 32 more days (until Dec 3 17:58:35 2026 GMT).

TLS certificate

Field	Value
Issuer	Google Trust Services
Subject CN	signal.org
Valid until	Dec 3 17:58:35 2026 GMT
Days left	32
TLS version	TLSv1.3
SAN entries	1

Security headers (33/100, grade D)

Header	Status
`x-content-type-options`	nosniff
`referrer-policy`	strict-origin-when-cross-origin
`strict-transport-security`	missing
`content-security-policy`	missing
`x-frame-options`	missing
`permissions-policy`	missing

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	92.8 ms
Fastest / slowest	82.9 / 112.3 ms
HTTP status	200 (https)
Server	cloudflare

DNS & robots.txt

Field	Value
A records	104.18.10.47, 104.18.11.47
Nameservers	zita.ns.cloudflare.com, casey.ns.cloudflare.com
MX records	5
robots.txt	absent (n/a sitemap refs, n/a disallow rules)

How signal.org compares

Site	Headers	Score	Cert days left	ms
snapchat.com	A	100	161	144.9
x.com	B	83	56	436.2
facebook.com	B	83	7	122.3
instagram.com	B	83	7	208.0
linkedin.com	B	83	172	149.7
pinterest.com	B	83	117	457.9
mastodon.social	B	83	43	102.3
threads.net	B	83	7	166.0

Embed this badge

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

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