Check-Host.cc

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

support.office.live.com

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

DNS Check HTTP Check Run Full Scan .com TLD

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

DNS Records

A
150.171.109.196, 150.171.109.51, 150.171.110.52
AAAA
2603:1061:14:21::1, 2603:1061:14:63::1
MX
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NS
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TXT
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CNAME
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CAA
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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.

c999e9c26cbfb11b… google · xenon2026h2
Subject: help.svc.cloud.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: help.svc.cloud.microsoft, prod.help.svc.cloud.microsoft, gateway.support.office.com, static.support.office.com, support.office.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com, prod.support.office.com, support.content.office.microsoft.com, support.office.microsoft.com, www.support.office.com, fonts.support.content.office.net, styles.support.content.office.net, scripts.support.content.office.net
Valid: 2026-02-25 17:35:00 → 2026-08-24 17:35:00
15003d05d4f2d550… google · xenon2026h2
Subject: help.svc.cloud.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: help.svc.cloud.microsoft, prod.help.svc.cloud.microsoft, gateway.support.office.com, static.support.office.com, support.office.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com, prod.support.office.com, support.content.office.microsoft.com, support.office.microsoft.com, www.support.office.com, fonts.support.content.office.net, styles.support.content.office.net, scripts.support.content.office.net
Valid: 2026-02-25 17:35:00 → 2026-08-24 17:35:00
3ef4f0de34fd6b72… google · xenon2026h2
Subject: help.svc.cloud.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: help.svc.cloud.microsoft, static.support.office.com, support.office.com, support.office.live.com, prod.help.svc.cloud.microsoft, prod.gateway.help.svc.cloud.microsoft, gateway.support.office.com, gateway.help.svc.cloud.microsoft, prod.static.support.office.com
Valid: 2026-02-25 17:20:22 → 2026-08-24 17:20:22
25d4635b2b7e0201… google · xenon2026h2
Subject: help.svc.cloud.microsoft
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: help.svc.cloud.microsoft, static.support.office.com, support.office.com, support.office.live.com, prod.help.svc.cloud.microsoft, prod.gateway.help.svc.cloud.microsoft, gateway.support.office.com, gateway.help.svc.cloud.microsoft, prod.static.support.office.com
Valid: 2026-01-27 20:55:58 → 2026-07-26 20:55:58
e505ac9bffad1fb8… google · argon2026h2
Subject: support.office.com
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: support.office.com, www.support.office.com, support.office.microsoft.com, dgps.microsoft.com, dgps.support.microsoft.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com
Valid: 2025-10-22 16:40:47 → 2026-10-17 16:40:47
e505ac9bffad1fb8… google · xenon2026h2
Subject: support.office.com
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: support.office.com, www.support.office.com, support.office.microsoft.com, dgps.microsoft.com, dgps.support.microsoft.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com
Valid: 2025-10-22 16:40:47 → 2026-10-17 16:40:47
e6aa05c03036fba1… google · argon2026h2
Subject: support.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: support.office.com, www.support.office.com, support.office.microsoft.com, dgps.microsoft.com, dgps.support.microsoft.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com
Valid: 2025-10-22 16:20:14 → 2026-10-17 16:20:14
e6aa05c03036fba1… google · xenon2026h2
Subject: support.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: support.office.com, www.support.office.com, support.office.microsoft.com, dgps.microsoft.com, dgps.support.microsoft.com, help.outlook.com, officetraining.microsoft.com, support.office.live.com
Valid: 2025-10-22 16:20:14 → 2026-10-17 16:20:14

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 2603:1061:14:63::1 2026-06-04 10:49:44.500 2026-06-23 20:19:27.896
A 150.171.110.52 2026-06-04 10:49:44.500 2026-06-04 10:49:44.500
A 150.171.109.196 2026-06-23 20:19:27.896 2026-06-23 20:19:27.896
A 150.171.109.51 2026-07-26 03:22:47.889 2026-07-26 03:22:47.889
AAAA 2603:1061:14:21::1 2026-07-26 03:22:47.889 2026-07-26 03:22:47.889