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 bb-franchise.com

Valid
Issued by (CA)
Let's Encrypt
Subject
bb-franchisa.cz
Valid from
Jun 7, 2026
Valid until
Sep 5, 2026 (43 days remaining)
Public key
RSA 3072-bit
Serial
06FC85CF4CECB9C925F97DF5200A3270F917
SHA-256 fingerprint
EE:D6:85:C8:1C:6D:50:F8:F1:F4:D7:F2:E9:12:1F:B6:BE:28:FA:6D:17:FF:8A:5A:BF:82:E4:1B:77:A3:A1:3F
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (16)
bb-franchisa.cz, bb-franchise.com, bb-franchise.cz, bb-franchise.de, bb-franchise.sk, bb-franchiza.cz, bb-fransiza.cz, bb-fransiza.sk, www.bb-franchisa.cz, www.bb-franchise.com, www.bb-franchise.cz, www.bb-franchise.de, www.bb-franchise.sk, www.bb-franchiza.cz, www.bb-fransiza.cz, www.bb-fransiza.sk

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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Uptime

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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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