Check-Host.cc

Domain

academic.microsoft.com

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

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

DNS Records

A
AAAA
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

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.

50.87.66.137:443 href · ×14
13.229.209.186:80 href · ×1
115.146.86.66:443 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 20.231.239.246 2026-05-25 22:02:50.525 2026-06-21 16:00:07.426
AAAA 2603:1030:c02:8::14 2026-05-25 22:02:50.525 2026-06-21 16:00:07.426
A 20.236.44.162 2026-05-25 22:02:50.525 2026-06-16 00:01:15.253
AAAA 2603:1030:20e:3::23c 2026-05-25 22:02:50.525 2026-05-27 14:33:35.773
A 20.112.250.133 2026-05-25 22:13:29.500 2026-05-27 14:33:35.773
AAAA 2603:1030:b:3::152 2026-05-25 22:13:29.500 2026-06-21 16:00:07.426
AAAA 2603:1020:201:10::10f 2026-05-27 02:49:30.110 2026-05-27 14:44:10.079
A 20.76.201.171 2026-05-27 14:33:35.773 2026-06-21 16:00:07.426