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 sp-te.ru
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sp-te.ru
- Valid from
- Jun 8, 2026
- Valid until
- Sep 6, 2026 (43 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0662AD4563C1EE2F0F3F7F152BA6B5F002A8
- SHA-256 fingerprint
- 55:D8:73:47:7C:A8:BF:5B:5B:D4:83:12:E3:73:72:D3:90:96:90:CC:78:05:57:03:F8:B2:33:A3:D3:16:4F:9E
- 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.
Never get surprised by sp-te.ru's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sp-te.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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