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 it-sc.ru
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- it-sc.ru
- Valid from
- Aug 16, 2026
- Valid until
- Nov 14, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06DB746386C7A04235A88963AFF004382E3B
- SHA-256 fingerprint
- C9:6E:FA:9C:61:BF:71:91:8D:F3:D3:59:3F:2B:66:C1:4B:39:BC:EB:E2:60:55:22:B3:A5:1E:70:BB:03:B7:DE
- 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 4, 2026.
Never get surprised by it-sc.ru's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch it-sc.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.