SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
alumni-ut.id
SSL/TLS Certificate
SSL/TLS Certificate for alumni-ut.id
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- alumni-ut.id
- Valid from
- Sep 8, 2026
- Valid until
- Dec 7, 2026 (47 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0658F0660382C02EE0C9EE74E3D68E9201A8
- SHA-256 fingerprint
- FC:B8:F8:81:F0:D6:60:3B:CD:33:FE:20:87:8A:80:21:1E:6C:7B:6C:21:2D:0C:63:7C:ED:0C:61:43:FA:53:C2
- Chain
- YR1 → Root YR → ISRG Root X1
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 19, 2026.
Never get surprised by alumni-ut.id's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch alumni-ut.id 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, CNAME, TXT 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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