SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
offi-alumni.com
SSL/TLS Certificate
SSL/TLS Certificate for offi-alumni.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- offi-alumni.com
- Valid from
- Aug 22, 2026
- Valid until
- Nov 20, 2026 (85 days remaining)
- Public key
- EC 256-bit
- Serial
- 2092A0EF9FC45016135868E06181EEBC
- SHA-256 fingerprint
- B7:DC:41:8A:37:7D:62:E2:D0:DC:9B:5E:97:E9:06:A7:B4:55:DA:08:68:FD:47:B4:11:C4:D2:E3:CF:18:FE:2A
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by offi-alumni.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch offi-alumni.com continuously, notifying you the moment anything moves across all three signals:
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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