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r-project.org

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

Security headers: F 0/100 (rank #412 of 461) · TLS: TLSv1.3 · Cert expires in 76 days (rank #227 of 459 soonest) · Response: 1030.7 ms (rank #408 of 446)

Certificate valid for 76 more days (until Jan 16 23:59:59 2027 GMT).

TLS certificate

Field	Value
Issuer	Sectigo Limited
Subject CN	*.r-project.org
Valid until	Jan 16 23:59:59 2027 GMT
Days left	76
TLS version	TLSv1.3
SAN entries	2

Security headers (0/100, grade F)

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

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	1030.7 ms
Fastest / slowest	939.1 / 1175.9 ms
HTTP status	200 (https)
Server	Apache

DNS & robots.txt

Field	Value
A records	137.208.57.37
Nameservers	ns2.wu-wien.ac.at, ns1.wu-wien.ac.at, ns1.urbanek.info, ns2.urbanek.info
MX records	1
robots.txt	absent (n/a sitemap refs, n/a disallow rules)

How r-project.org compares

Site	Headers	Score	Cert days left	ms
dart.dev	C	67	88	18.5
php.net	C	50	76	252.1
swift.org	C	50	46	473.0
haskell.org	C	50	63	485.2
perl.org	C	50	14	451.4
python.org	D	33	105	50.6
nodejs.org	D	33	68	166.8
go.dev	D	33	49	151.8

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