SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dna-lean.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for dna-lean.co.uk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dna-lean.co.uk
- Valid from
- Jun 2, 2026
- Valid until
- Aug 31, 2026 (39 days remaining)
- Public key
- EC 256-bit
- Serial
- 0542976348250FC50D61B6B24FFA28ACBE42
- SHA-256 fingerprint
- EA:FF:B3:E6:30:AB:E1:6C:ED:97:8C:57:E0:8D:84:9C:17:53:11:C4:24:7F:4D:EE:C3:6E:37:00:0C:8B:99:1C
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 dna-lean.co.uk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dna-lean.co.uk 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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