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 b-fit.hr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.b-fit.hr
- Valid from
- Aug 29, 2026
- Valid until
- Nov 27, 2026 (81 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0666DDB4BBCB047E3B2BCE0DE9BF2F6C2CD8
- SHA-256 fingerprint
- 3F:4B:5E:C7:E3:E6:17:51:37:7C:BB:AC:81:C1:87:18:6C:2B:F3:46:03:CA:08:25:91:F0:0F:D0:C2:A8:37:7C
- 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 b-fit.hr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch b-fit.hr 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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