indexo.dev

kernel.org

.org toplist crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 631 ms crawled 2026-05-18

CA · 172.105.4.254 · AS63949 Akamai Connected Cloud

Reputation 100/100

Classifying

HTML metadata

Title
The Linux Kernel Archives
Language
en
Feeds

Technology

Server
nginx

Contact

Address
This site is operated by the Linux Kernel Organization, a501(c)3 nonprofit corporation, with support from the following sponsors.

Registration

Registrar
Gandi SAS
Created
1997-03-07
Expires
2027-03-08 292 days left
Updated
2025-05-28
Name servers
  • ns11.constellix.com
  • ns21.constellix.com
  • ns31.constellix.com
  • ns41.constellix.net
  • ns51.constellix.net
  • ns61.constellix.net

DNS records live

NS
  • ns11.constellix.com
  • ns21.constellix.com
  • ns31.constellix.com
  • ns41.constellix.net
  • ns51.constellix.net
  • ns61.constellix.net
MX
  • 10 smtp1.kernel.org
  • 10 smtp2.kernel.org
  • 10 smtp3.kernel.org
TXT
  • google-site-verification=nb4Wx5xBQM3b-a3OV2KSlPL786714Y7M6GfBtJf1opQ

Email authentication strong

SPF
v=spf1 include:_spf.kernel.org ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@kernel.org
policy: quarantine
DKIM
  • default: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbCVavaDWYcYX16ktqY4ZiZIaYApoL4sSGBsp5mIv1X3Ocy6MvXOC8XzDCO+hXYxhpdM16GmwWSFo7IVZ14D…
selectors probed

Certificate (current)

E8
from 2026-04-16 to 2026-07-15
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://kernel.org/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • CSP uses wildcard sources
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
default-src 'self' *.kernel.org; img-src https: data:
strict-transport-security
max-age=15768001

Links to (11)

Linked from (50)