SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
forum-microsoft.org
SSL/TLS Certificate
SSL/TLS Certificate for forum-microsoft.org
Valid- Issued by (CA)
- Google Trust Services
- Subject
- forum-microsoft.org
- Valid from
- Aug 16, 2026
- Valid until
- Nov 14, 2026 (66 days remaining)
- Public key
- EC 256-bit
- Serial
- 4F9E3E3F45C9BDCB1355237E4A9DB204
- SHA-256 fingerprint
- 52:8C:10:20:96:5B:BF:AD:82:18:C8:69:56:96:91:25:B8:EB:D2:9E:12:F4:87:3A:AF:24:8F:53:55:B4:9F:1E
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 8, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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