Check-Host.cc

Domain

dotnet.microsoft.com

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

Run a live full scan of dotnet.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
15
A/AAAA targets
Subdomains
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
9
in our scans

DNS Records

A
13.107.213.45, 13.107.213.53, 13.107.213.67, 13.107.246.45, 13.107.246.53, 13.107.246.60, 13.107.246.67, 13.107.246.76
AAAA
2620:1ec:46::53, 2620:1ec:46::67, 2620:1ec:bdf::45, 2620:1ec:bdf::53, 2620:1ec:bdf::60, 2620:1ec:bdf::67, 2620:1ec:bdf::76
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.

101.201.46.180:443 href · ×4
82.114.229.122:80 href · ×3
218.92.248.10:80 href · ×2
82.157.24.79:443 href · ×2
130.162.138.214:8443 href · ×2
82.65.173.195:443 href · ×2
3.70.248.129:80 href · ×2
8.218.201.27:80 href · ×2
47.240.165.29:80 href · ×2
104.7.190.226:443 href · ×2
94.71.27.44:8080 href · ×2
82.136.86.10:443 href · ×2
81.71.153.131:80 href · ×2
47.240.4.74:443 href · ×2
193.225.219.3:443 href · ×2
45.151.106.166:443 href · ×2
57.128.159.119:443 href · ×1
96.126.190.37:443 href · ×1
167.86.73.183:80 href · ×1
188.245.38.106:443 href · ×1
47.52.224.145:443 href · ×1
8.136.23.136:80 href · ×1
119.23.254.98:443 href · ×1
47.240.115.62:443 href · ×1
47.75.212.238:443 href · ×1
38.60.233.81:443 href · ×1
82.156.2.229:80 href · ×1
47.240.103.141:80 href · ×1
129.152.21.131:443 href · ×1
5.255.103.18:80 href · ×1
45.12.18.243:80 href · ×1
83.246.77.194:80 href · ×1
216.158.231.116:80 href · ×1
82.65.167.130:443 href · ×1
61.213.223.123:443 href · ×1
223.194.1.139:443 href · ×1
149.104.12.191:443 href · ×1
32.198.137.59:443 href · ×1
69.172.213.229:8443 href · ×1
65.19.139.3:443 href · ×1
54.236.93.226:443 href · ×1
2.59.132.106:80 href · ×1
47.75.159.152:80 href · ×1
93.189.95.13:80 href · ×1
2.59.132.106:8443 href · ×1
31.59.137.217:8443 href · ×1
103.51.145.55:8080 href · ×1
104.234.167.177:8443 href · ×1
109.74.12.181:443 href · ×1
223.194.1.138:443 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.

CT-Log Evidence

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

bcdd62062d15c39e… google · xenon2026h2
Subject: dotnet.microsoft.com
Issuer: Microsoft Azure RSA TLS Issuing CA 03
SANs: dotnet.microsoft.com
Valid: 2026-03-01 08:37:32 → 2026-08-25 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 2620:1ec:bdf::45 2026-05-26 03:55:34.463 2026-06-23 11:14:44.371
A 13.107.246.45 2026-05-26 03:55:34.463 2026-06-23 11:14:44.371
A 13.107.246.67 2026-05-26 04:32:49.683 2026-07-27 17:39:35.256
AAAA 2620:1ec:bdf::67 2026-05-26 04:32:49.683 2026-07-27 17:39:35.256
A 13.107.213.45 2026-05-26 18:23:02.612 2026-05-26 18:23:02.612
AAAA 2620:1ec:46::67 2026-05-26 21:57:05.653 2026-07-25 07:50:16.639
AAAA 2620:1ec:bdf::60 2026-05-27 12:28:39.958 2026-07-27 04:46:41.294
A 13.107.246.60 2026-05-27 17:25:14.194 2026-07-27 04:46:41.294
A 13.107.246.76 2026-06-14 23:37:38.836 2026-06-14 23:37:38.836
AAAA 2620:1ec:bdf::76 2026-06-14 23:37:38.836 2026-06-14 23:37:38.836
A 13.107.246.53 2026-06-15 00:07:36.295 2026-06-23 11:11:46.497
AAAA 2620:1ec:bdf::53 2026-06-15 00:07:36.295 2026-06-23 11:11:46.497
AAAA 2620:1ec:46::53 2026-06-17 01:30:58.740 2026-06-17 01:30:58.740
A 13.107.213.53 2026-06-17 01:30:58.740 2026-06-17 01:30:58.740
A 13.107.213.67 2026-06-17 03:53:53.384 2026-07-25 07:50:16.639