Check-Host.cc

Domain

www.linux.org

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

Run a live full scan of www.linux.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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
in our scans

DNS Records

A
104.26.14.72, 104.26.15.72, 172.67.73.26
AAAA
2606:4700:20::681a:e48, 2606:4700:20::681a:f48, 2606:4700:20::ac43:491a
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

Subject: www.linux.org.hk
Issuer: YR1
SANs: www.linux.org.hk
Subject: linux.org
Issuer: E8
SANs: linux.org, www.linux.org

IPs Citing This Domain

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

185.81.215.237:443 href · ×2
152.65.40.10:80 href · ×2
172.89.189.9:443 href · ×2
161.35.121.40:80 href · ×2
143.130.20.23:443 href · ×2
96.10.14.21:80 href · ×2
23.239.9.149:443 href · ×2
171.64.163.184:80 href · ×2
193.194.66.174:80 href · ×2
206.196.156.29:80 href · ×2
168.235.82.143:443 href · ×2
63.228.1.57:80 href · ×2
45.61.186.167:443 href · ×2
188.192.254.46:80 href · ×2
149.130.12.11:80 href · ×2
150.101.115.122:80 href · ×2
67.253.199.182:80 href · ×1
194.164.57.32:80 href · ×1
106.53.6.136:80 href · ×1
24.143.98.51:80 href · ×1
82.65.239.57:443 href · ×1
216.92.232.76:80 href · ×1
216.218.198.103:81 href · ×1
178.105.52.195:80 href · ×1
216.218.198.161:80 href · ×1
63.228.1.57:443 href · ×1
65.78.56.236:80 href · ×1
216.218.198.144:81 href · ×1
84.247.160.102:8081 href · ×1
143.107.221.73:80 href · ×1
98.189.220.155:80 href · ×1
5.180.25.163:80 href · ×1
139.94.131.143:443 href · ×1
66.39.39.18:80 href · ×1
185.244.195.186:80 href · ×1
77.66.2.210:80 href · ×1
185.254.250.137:80 href · ×1
199.233.217.206:443 href · ×1
216.218.198.8:80 href · ×1
118.92.164.81:443 href · ×1
58.152.171.36:80 href · ×1
140.129.22.47:443 href · ×1
85.51.99.147:80 href · ×1
140.78.198.109:443 href · ×1
216.218.198.49:81 href · ×1
52.24.201.70:80 href · ×1
82.65.247.114:80 href · ×1
74.15.205.175:80 href · ×1
67.210.32.188:80 href · ×1
185.25.150.98:443 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.

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
A 172.67.73.26 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595
AAAA 2606:4700:20::681a:e48 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595
AAAA 2606:4700:20::681a:f48 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595
A 104.26.14.72 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595
A 104.26.15.72 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595
AAAA 2606:4700:20::ac43:491a 2026-05-26 00:07:44.959 2026-07-28 12:54:15.595