SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
petrov-petrov.si
SSL/TLS Certificate
SSL/TLS Certificate for petrov-petrov.si
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- pp.si
- Valid from
- Jun 25, 2026
- Valid until
- Sep 23, 2026 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058AC75E8530CE74481E040A1F631E3B456F
- SHA-256 fingerprint
- 0E:73:D5:89:E6:54:94:59:5F:18:3E:32:B1:64:4D:BA:0F:B9:D3:FF:64:5F:75:53:10:2F:5B:A7:32:D5:89:E6
- 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 Jul 23, 2026.
Never get surprised by petrov-petrov.si's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch petrov-petrov.si 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.