Check-Host.cc

Domain

askubuntu.com

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

Run a live full scan of askubuntu.com

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
1
A/AAAA targets
Subdomains
13
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
25
in our scans

DNS Records

A
198.252.206.1
AAAA
MX
NS
damian.ns.cloudflare.com, sureena.ns.cloudflare.com
TXT
google-site-verification=PgJFv7ljJQmUa7wupnJgoim3Lx22fbQzyhES7-Q9cv8, v=spf1 -all
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

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
askubuntu.com 2026-07-26 22:55:19.788
chat.askubuntu.com 2026-06-20 18:26:22.858

Tech Stack

Tech detection pending

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

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

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

23.92.16.120:443 href · ×6
93.93.131.112:5000 href · ×4
138.197.42.172:443 href · ×3
46.101.43.167:80 href · ×2
95.217.183.242:443 href · ×2
138.128.210.234:443 href · ×2
172.105.226.236:443 href · ×2
47.52.44.250:443 href · ×2
134.249.237.212:8080 href · ×2
123.57.249.151:443 href · ×2
51.15.115.12:443 href · ×1
164.90.255.134:443 href · ×1
104.248.173.72:443 href · ×1
160.248.79.131:80 href · ×1
104.236.96.197:80 href · ×1
198.211.124.203:80 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.

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
TXT v=spf1 -all 2026-05-26 13:38:49.596 2026-07-26 22:55:19.788
NS damian.ns.cloudflare.com 2026-05-26 13:38:49.596 2026-07-26 22:55:19.788
TXT google-site-verification=PgJFv7ljJQmUa7wupnJgoim3Lx22fbQzyhES7-Q9cv8 2026-05-26 13:38:49.596 2026-07-26 22:55:19.788
NS sureena.ns.cloudflare.com 2026-05-26 13:38:49.596 2026-07-26 22:55:19.788
A 198.252.206.1 2026-05-26 13:38:49.596 2026-07-26 22:55:19.788