SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
spo-edu.ru
SSL/TLS Certificate
SSL/TLS Certificate for spo-edu.ru
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- spo-edu.ru
- Valid from
- Jun 13, 2026
- Valid until
- Sep 11, 2026 (8 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 059A9DD5444AD34AFF2754E5F94809EBE92B
- SHA-256 fingerprint
- 0F:53:A2:1C:48:8A:57:41:8D:8B:EE:04:AE:2C:26:DB:34:13:AB:91:CC:0F:6C:72:38:15:92:71:5B:F2:9A:55
- Chain
- YR2 → Root YR → ISRG Root X1
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 Aug 30, 2026.
Never get surprised by spo-edu.ru's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch spo-edu.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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