SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sk-sofia.com
SSL/TLS Certificate
SSL/TLS Certificate for sk-sofia.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sk-sofia.com
- Valid from
- Jul 29, 2026
- Valid until
- Oct 27, 2026 (52 days remaining)
- Public key
- EC 256-bit
- Serial
- 0558A9A35E4B40520C0B576D8B18040D5A4F
- SHA-256 fingerprint
- AF:F6:DC:7A:D6:BC:3B:B9:80:31:83:18:94:C9:62:7D:0A:93:9F:27:F6:02:5D:14:7E:DD:8C:C9:A3:50:A1:FB
- 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 sk-sofia.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sk-sofia.com 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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