SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
b-and-q.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for b-and-q.co.uk
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.diy.com
- Valid from
- Aug 3, 2026
- Valid until
- Feb 18, 2027 (108 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3BA95A4095BDBD735DDBADA6
- SHA-256 fingerprint
- 6A:3A:C0:64:8C:6A:81:F8:74:1F:BB:9E:C4:66:45:4E:75:1D:EF:D1:7D:AA:87:BB:23:4B:92:A5:1E:23:5E:5B
- Chain
- GlobalSign GCC R46 DV TLS CA 2025 → GlobalSign Root R46
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
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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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