Domain
osub.microsoft.com
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of osub.microsoft.com
On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.
Hosting IPs
5
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
20
in our scans
DNS Records
A
52.109.0.35, 52.109.20.20
AAAA
2603:1030:803:11::137, 2a01:111:f100:1002::4134:d428, 2a01:111:f100:3000::a83e:176b
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
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.
3e7e877c3b65b804…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, *.ols.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2026-03-21 07:42:39 → 2026-09-17 07:42:39
e59244d4c661cb86…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, *.ols.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2026-02-05 20:19:30 → 2026-08-04 20:19:30
f23496749cf4f534…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, *.ols.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2026-02-05 20:19:30 → 2026-08-04 20:19:30
53d6c8d675ece4ae…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-12-01 21:49:32 → 2026-08-25 23:59:59
ce5f097695f15367…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-12-01 21:49:32 → 2026-08-25 23:59:59
53d6c8d675ece4ae…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-12-01 21:49:32 → 2026-08-25 23:59:59
ce5f097695f15367…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-12-01 21:49:32 → 2026-08-25 23:59:59
3d4cad3b4b950151…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 08
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-30 20:07:27 → 2026-08-25 23:59:59
3d4cad3b4b950151…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 08
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-30 20:07:27 → 2026-08-25 23:59:59
5be410ef27447ec1…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-29 19:23:37 → 2026-08-25 23:59:59
5be410ef27447ec1…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-29 19:23:37 → 2026-08-25 23:59:59
168fa7364d50897e…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 03
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-29 17:34:43 → 2026-08-25 23:59:59
168fa7364d50897e…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 03
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-11-29 17:34:43 → 2026-08-25 23:59:59
24f055393bc33355…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-10-17 21:55:24 → 2026-08-25 23:59:59
8742007c3d4d424a…
google · argon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-10-17 21:55:24 → 2026-08-25 23:59:59
24f055393bc33355…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-10-17 21:55:24 → 2026-08-25 23:59:59
8742007c3d4d424a…
google · xenon2026h2
Subject: ols.officeapps.live.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: *.ols.officeapps.live.com, ols.officeapps.live.com, osub.microsoft.com, *.officeapps.live.com, licensing.m365.svc.cloud.microsoft, *.licensing.m365.svc.cloud.microsoft
Valid: 2025-10-17 21:55:24 → 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 | 2603:1030:803:11::137 | 2026-06-16 05:17:04.018 | 2026-06-16 05:17:04.018 |
| A | 52.109.0.35 | 2026-06-16 05:17:04.018 | 2026-07-17 06:55:57.499 |
| AAAA | 2a01:111:f100:3000::a83e:176b | 2026-06-17 08:02:55.378 | 2026-06-17 08:02:55.378 |
| A | 52.109.20.20 | 2026-06-17 08:02:55.378 | 2026-06-17 08:02:55.378 |
| AAAA | 2a01:111:f100:1002::4134:d428 | 2026-07-17 06:55:57.499 | 2026-07-17 06:55:57.499 |