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haskell.org

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

Security headers: C 50/100 (rank #209 of 461) · TLS: TLSv1.3 · Cert expires in 63 days (rank #158 of 459 soonest) · Response: 485.2 ms (rank #340 of 446)
Certificate valid for 63 more days (until Jan 3 14:16:18 2027 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNwww-origin.haskell.org
Valid untilJan 3 14:16:18 2027 GMT
Days left63
TLS versionTLSv1.3
SAN entries20

Security headers (50/100, grade C)

HeaderStatus
x-frame-optionsDENY
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
strict-transport-securitymissing
content-security-policymissing
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response485.2 ms
Fastest / slowest464.7 / 514.4 ms
HTTP status200 (https)
Servernginx

DNS & robots.txt

FieldValue
A records142.93.179.24
Nameserverslex.ns.cloudflare.com, pola.ns.cloudflare.com
MX records1
robots.txtpresent (0 sitemap refs, 2 disallow rules)

How haskell.org compares

SiteHeadersScoreCert days leftms
dart.devC678818.5
php.netC5076252.1
swift.orgC5046473.0
perl.orgC5014451.4
python.orgD3310550.6
nodejs.orgD3368166.8
go.devD3349151.8
java.comD3348338.7

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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.