Domain
core.microsoft
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of core.microsoft
On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.
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
ns1-33.azure-dns.com, ns2-33.azure-dns.net, ns3-33.azure-dns.org, ns4-33.azure-dns.info
TXT
MS=ms76478040, v=spf1 -all
CNAME
—
CAA
0 contactemail "caarecordaware@microsoft.com", 0 iodef "mailto:caarecordaware@microsoft.com", 0 issue "digicert.com", 0 issue "microsoft.com"
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
Subject: tca.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: *.rtaf.tca.teams.core.microsoft, *.tca.teams.core.microsoft, tca.teams.core.microsoft
Subject: *.aiinterpreterin.mcr.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: *.aiinterpreterin.mcr.teams.core.microsoft, *.aiinterpreterin.mcr.teams.microsoft.com
Subject: apac.prod.active-protection.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: apac.prod.active-protection.teams.core.microsoft
Subject: getitemsworker.powerpoint.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.getitemsworker.edog.officeapps.live.com, *.getitemsworker.officeapps.live.com, *.getitemsworker.powerpoint.core.dev.microsoft, *.getitemsworker.powerpoint.core.microsoft, getitemsworker.edog.officeapps.live.com, getitemsworker.officeapps.live.com, getitemsworker.powerpoint.core.dev.microsoft, getitemsworker.powerpoint.core.microsoft
Subject: tca.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: *.rtaf.tca.teams.core.microsoft, *.tca.teams.core.microsoft, tca.teams.core.microsoft
Subject: *.fe.communications.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: *.fe.communications.core.microsoft, *.scheduler.fe.communications.core.microsoft, *.testworker.fe.communications.core.microsoft, *.worker.fe.communications.core.microsoft
Subject: *.stampcontrolplane.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: *.failoverorchestrator.teams.core.microsoft, *.stampcontrolplane.teams.core.microsoft
Subject: *.lift.mcr.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: *.lift.mcr.teams.core.microsoft
Subject: *.fe.communications.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.fe.communications.core.microsoft, *.scheduler.fe.communications.core.microsoft, *.testworker.fe.communications.core.microsoft, *.worker.fe.communications.core.microsoft
Subject: apac.prod.active-protection.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: apac.prod.active-protection.teams.core.microsoft
Subject: coresvc.gcc.dmsvc.teams.usgovcloud-core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: coresvc.gcc.dmsvc.teams.usgovcloud-core.microsoft
Subject: revocation.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: *.revocation.core.microsoft, revocation.core.microsoft
Subject: *.fe.communications.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.fe.communications.core.microsoft, *.scheduler.fe.communications.core.microsoft, *.testworker.fe.communications.core.microsoft, *.worker.fe.communications.core.microsoft
Subject: updateprocessor-prod-apac.dmsvc.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: updateprocessor-prod-apac.dmsvc.teams.core.microsoft
Subject: notificationsvc-prod-emea.dmsvc.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: notificationsvc-prod-emea.dmsvc.teams.core.microsoft
Subject: getitemsworker.powerpoint.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.getitemsworker.edog.officeapps.live.com, *.getitemsworker.officeapps.live.com, *.getitemsworker.powerpoint.core.dev.microsoft, *.getitemsworker.powerpoint.core.microsoft, getitemsworker.edog.officeapps.live.com, getitemsworker.officeapps.live.com, getitemsworker.powerpoint.core.dev.microsoft, getitemsworker.powerpoint.core.microsoft
Subject: prod.appsuggestions.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: p01.sano.prod.appsuggestions.teams.core.microsoft, p02.sano.prod.appsuggestions.teams.core.microsoft, prod.appsuggestions.teams.core.microsoft, sano.prod.appsuggestions.teams.core.microsoft
Subject: *.aiinterpreterin.mcr.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.aiinterpreterin.mcr.teams.core.microsoft, *.aiinterpreterin.mcr.teams.microsoft.com
Subject: prod.appsuggestions.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: jpea.prod.appsuggestions.teams.core.microsoft, p01.jpea.prod.appsuggestions.teams.core.microsoft, p02.jpea.prod.appsuggestions.teams.core.microsoft, prod.appsuggestions.teams.core.microsoft
Subject: *.skypegraph.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.skypegraph.teams.core.microsoft, sgraphupdate.skype.net, skypegraph.skype.com
Subject: tca.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: *.rtaf.tca.teams.core.microsoft, *.tca.teams.core.microsoft, tca.teams.core.microsoft
Subject: revocation.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: *.revocation.core.microsoft, revocation.core.microsoft
Subject: *.aiinterpreterin.mcr.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.aiinterpreterin.mcr.teams.core.microsoft, *.aiinterpreterin.mcr.teams.microsoft.com
Subject: *.skypegraph.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.skypegraph.teams.core.microsoft, sgraphupdate.skype.net, skypegraph.skype.com
Subject: getitemsworker.powerpoint.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.getitemsworker.edog.officeapps.live.com, *.getitemsworker.officeapps.live.com, *.getitemsworker.powerpoint.core.dev.microsoft, *.getitemsworker.powerpoint.core.microsoft, getitemsworker.edog.officeapps.live.com, getitemsworker.officeapps.live.com, getitemsworker.powerpoint.core.dev.microsoft, getitemsworker.powerpoint.core.microsoft
Subject: llmmeteringapi.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: llmmeteringapi.core.microsoft, substrate-inference-meteringapi-lb.prod.substrate-inference-meteringapi.japaneast-prod.cosmic.office.net, substrate-inference-meteringapi-lb.prod.substrate-inference-meteringapi.westus-prod.cosmic.office.net
Subject: llmmeteringapi.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: llmmeteringapi.core.microsoft, substrate-inference-meteringapi-lb.prod.substrate-inference-meteringapi.japaneast-prod.cosmic.office.net, substrate-inference-meteringapi-lb.prod.substrate-inference-meteringapi.westus-prod.cosmic.office.net
Subject: *.fe.communications.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: *.fe.communications.core.microsoft, *.worker.fe.communications.core.microsoft
Subject: intelligence-gw-prodnoam.dmmars.teams.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: intelligence-gw-prodnoam.dmmars.teams.core.microsoft
Subject: *.fe.communications.core.microsoft
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.fe.communications.core.microsoft, *.scheduler.fe.communications.core.microsoft, *.testworker.fe.communications.core.microsoft, *.worker.fe.communications.core.microsoft
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.
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 |
|---|---|---|---|
| CAA | 0 issue "microsoft.com" | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| NS | ns4-33.azure-dns.info | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| TXT | v=spf1 -all | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| TXT | MS=ms76478040 | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| NS | ns1-33.azure-dns.com | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| CAA | 0 iodef "mailto:caarecordaware@microsoft.com" | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| CAA | 0 contactemail "caarecordaware@microsoft.com" | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| NS | ns3-33.azure-dns.org | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| CAA | 0 issue "digicert.com" | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |
| NS | ns2-33.azure-dns.net | 2026-06-02 03:45:33.953 | 2026-07-15 20:04:13.980 |