SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for edu-t.ru
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- edu-t.ru
- Valid from
- Aug 5, 2026
- Valid until
- Nov 3, 2026 (38 days remaining)
- Public key
- EC 256-bit
- Serial
- 06BB92257E6234FB79496989B2EAD09720C3
- SHA-256 fingerprint
- FF:2E:2C:00:22:6D:3B:C3:F8:9F:66:09:D5:2D:F2:98:E6:6E:6B:16:92:24:B7:7F:45:D2:56:97:AC:8F:5A:EA
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by edu-t.ru's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch edu-t.ru 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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