SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mprof-asistent.sk
SSL/TLS Certificate
SSL/TLS Certificate for mprof-asistent.sk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mprof-asistent.sk
- Valid from
- Aug 28, 2026
- Valid until
- Nov 26, 2026 (65 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 053C86E8ABF94FA8AAD76B9E6E959296DECC
- SHA-256 fingerprint
- 9A:1C:44:9D:D2:5A:73:1E:74:23:9B:56:9A:C3:B8:9E:DC:E6:F8:C3:85:3F:F4:0C:07:DB:66:9B:03:1E:8F:F0
- 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 mprof-asistent.sk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch mprof-asistent.sk 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.