SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ms-sharepointonline.com
SSL/TLS Certificate
SSL/TLS Certificate for ms-sharepointonline.com
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- Aug 3, 2022
- Valid until
- Aug 3, 2023 (expired 1156 days ago)
- Public key
- RSA 2048-bit
- Serial
- 62EA0505
- SHA-256 fingerprint
- 83:38:F1:96:42:3D:1A:84:6A:D5:37:95:06:3B:F2:5D:57:99:09:3A:ED:B5:1D:F4:62:A0:09:39:0C:4D:F1:1D
- Chain
- Plesk
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 29, 2026.
Never get surprised by ms-sharepointonline.com's certificate expiring
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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