Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

www.kernel.org

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

DNS Check HTTP Check Run Full Scan .org TLD

Run a live full scan of www.kernel.org

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
14
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
26
in our scans

DNS Records

A
146.75.121.55, 151.101.1.55, 151.101.129.55, 151.101.193.55, 151.101.205.55, 151.101.65.55
AAAA
2a04:4e42:200::311, 2a04:4e42:3000::311, 2a04:4e42:400::311, 2a04:4e42:600::311, 2a04:4e42:8e::311, 2a04:4e42:9::311, 2a04:4e42::311, 2a04:4e42:d000::311
MX
—
NS
—
TXT
—
CNAME
—
CAA
—

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

144.124.241.231:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
91.186.199.226:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
185.223.82.253:443 83cd1d7b7dcf…
Subject: fra.source.kernel.org
Issuer: YE2
SANs: fra.source.kernel.org, git.kernel.org, kernel.org, lore.kernel.org, origin.kernel.org, www.kernel.org
77.160.26.101:8443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
78.17.111.201:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
43.130.10.217:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
144.31.138.19:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
144.31.219.69:8443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
139.162.179.251:443 83cd1d7b7dcf…
Subject: fra.source.kernel.org
Issuer: YE2
SANs: fra.source.kernel.org, git.kernel.org, kernel.org, lore.kernel.org, origin.kernel.org, www.kernel.org
46.62.139.217:8443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org
85.137.90.226:443 88af1b13225f…
Subject: tor.source.kernel.org
Issuer: YE1
SANs: android.kernel.org, git.kernel.org, kernel.org, linux.kernel.org, lore.kernel.org, origin.kernel.org, tor.source.kernel.org, wireless.kernel.org, www.kernel.org

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

78.47.254.151:80 href · ×29
23.147.56.50:443 href · ×29
129.154.193.79:443 href · ×29
107.175.65.229:443 href · ×6
119.28.52.204:80 href · ×6
64.204.188.221:443 href · ×3
46.243.3.246:443 href · ×3
82.40.38.247:443 href · ×3
64.204.188.61:443 href · ×3
213.196.21.55:443 href · ×3
142.0.200.124:80 href · ×3
54.184.71.19:443 href · ×3
38.244.205.147:443 href · ×3
103.195.191.25:443 href · ×3
199.204.44.194:80 href · ×3
154.17.6.0:443 href · ×3
185.22.153.152:443 href · ×3
151.241.216.173:443 href · ×3
103.102.228.151:443 href · ×3
150.241.70.255:443 href · ×3
213.196.21.55:80 href · ×3
38.244.205.166:443 href · ×3
64.64.229.102:443 href · ×3
207.246.96.132:443 href · ×3
199.204.44.194:443 href · ×3
141.11.91.165:443 href · ×3
142.0.200.124:443 href · ×3
125.227.215.64:80 href · ×2
146.19.207.248:443 href · ×2
74.208.240.17:443 href · ×2
152.69.200.207:443 href · ×2
204.147.191.131:80 href · ×2
192.53.120.188:443 href · ×2
74.90.233.130:80 href · ×2
66.42.119.151:443 href · ×2
47.12.121.127:80 href · ×2
77.109.176.108:443 href · ×2
178.220.120.127:465 href · ×2
120.48.147.62:80 href · ×1
45.62.127.193:443 href · ×1
8.152.202.226:80 href · ×1
95.81.96.205:80 href · ×1
51.175.12.222:443 href · ×1
83.166.144.68:443 href · ×1
129.97.134.71:443 href · ×1
34.92.64.182:443 href · ×1
103.119.147.234:443 href · ×1
134.76.12.6:80 href · ×1
12.235.151.100:443 href · ×1
142.113.130.54:80 href · ×1

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

6f07f533f7a09fc7… google · xenon2026h2
Subject: cdn.kernel.org
Issuer: GlobalSign Atlas R3 DV TLS CA 2025 Q3
SANs: cdn.kernel.org, kernel.org, www.kernel.org
Valid: 2025-09-16 00:52:16 → 2026-10-18 00:52:15
b532ba3304624b95… google · argon2026h2
Subject: cdn.kernel.org
Issuer: GlobalSign Atlas R3 DV TLS CA 2025 Q3
SANs: cdn.kernel.org, kernel.org, www.kernel.org
Valid: 2025-09-16 00:52:16 → 2026-10-18 00:52:15

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
AAAA 2a04:4e42:600::311 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
AAAA 2a04:4e42:200::311 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
A 151.101.129.55 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
A 151.101.193.55 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
AAAA 2a04:4e42:400::311 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
A 151.101.65.55 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
A 151.101.1.55 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
AAAA 2a04:4e42::311 2026-05-25 23:59:40.866 2026-07-28 04:09:46.054
A 151.101.205.55 2026-06-16 02:08:17.783 2026-06-16 02:08:17.783
AAAA 2a04:4e42:9::311 2026-06-16 10:41:07.822 2026-06-16 10:41:07.822
AAAA 2a04:4e42:d000::311 2026-06-18 05:21:10.923 2026-06-18 05:21:10.923
AAAA 2a04:4e42:3000::311 2026-06-19 04:35:51.582 2026-06-19 04:35:51.582
AAAA 2a04:4e42:8e::311 2026-07-17 01:54:58.553 2026-07-22 15:44:03.354
A 146.75.121.55 2026-07-18 16:14:14.426 2026-07-26 15:50:57.975