Check-Host.cc

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

admin-dev.matematiktutor.dk

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

DNS Check HTTP Check Run Full Scan .dk TLD

Run a live full scan of admin-dev.matematiktutor.dk

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
24
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
4
in our scans

DNS Records

A
18.238.243.11, 18.238.243.128, 18.238.243.60, 18.238.243.67, 18.64.211.111, 18.64.211.3, 18.64.211.55, 18.64.211.77
AAAA
2600:9000:2090:3e00:18:1366:59c0:93a1, 2600:9000:2090:4200:18:1366:59c0:93a1, 2600:9000:2090:4a00:18:1366:59c0:93a1, 2600:9000:2090:6000:18:1366:59c0:93a1, 2600:9000:2090:6400:18:1366:59c0:93a1, 2600:9000:2090:7400:18:1366:59c0:93a1, 2600:9000:2090:aa00:18:1366:59c0:93a1, 2600:9000:2090:ae00:18:1366:59c0:93a1
MX
—
NS
ns-1145.awsdns-15.org, ns-1818.awsdns-35.co.uk, ns-187.awsdns-23.com, ns-908.awsdns-49.net
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

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

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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.

54fc4dc90d4c854d… google · xenon2026h2
Subject: *.admin-dev.matematiktutor.dk
Issuer: Amazon RSA 2048 M01
SANs: *.admin-dev.matematiktutor.dk, admin-dev.matematiktutor.dk
Valid: 2026-03-23 00:00:00 → 2026-10-06 23:59:59
f9239c7900421e20… google · xenon2026h2
Subject: *.admin-dev.matematiktutor.dk
Issuer: Amazon RSA 2048 M01
SANs: *.admin-dev.matematiktutor.dk, admin-dev.matematiktutor.dk
Valid: 2026-03-23 00:00:00 → 2026-10-06 23:59:59

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 2600:9000:2090:4a00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
NS ns-1145.awsdns-15.org 2026-06-03 16:03:44.140 2026-06-17 02:20:48.081
A 18.64.211.3 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:3e00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
A 18.64.211.111 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:f400:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:6000:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:ae00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:be00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
A 18.64.211.55 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
NS ns-187.awsdns-23.com 2026-06-03 16:03:44.140 2026-06-17 02:20:48.081
NS ns-1818.awsdns-35.co.uk 2026-06-03 16:03:44.140 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:ea00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
AAAA 2600:9000:2090:da00:18:1366:59c0:93a1 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
A 18.64.211.77 2026-06-03 16:03:44.140 2026-06-03 16:03:44.140
NS ns-908.awsdns-49.net 2026-06-03 16:03:44.140 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:b600:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:b800:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
A 18.238.243.60 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:7400:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:aa00:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:c600:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:c200:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:6400:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
A 18.238.243.128 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
A 18.238.243.67 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
AAAA 2600:9000:2090:4200:18:1366:59c0:93a1 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081
A 18.238.243.11 2026-06-17 02:20:48.081 2026-06-17 02:20:48.081