SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
excimer.uk
SSL/TLS Certificate
SSL/TLS Certificate for excimer.uk
Self-signed- Issued by (CA)
- plesk.zergnet.io
- Subject
- plesk.zergnet.io
- Valid from
- Sep 16, 2026
- Valid until
- Sep 16, 2027 (363 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 59C512826A569FC98E5FAFC6117EE81834CBEE7C
- SHA-256 fingerprint
- 89:4D:E5:44:20:31:09:E0:0D:72:70:99:30:E0:28:BC:3B:7F:0A:E9:8D:51:71:35:C3:6F:3F:AB:D6:99:42:1A
- Chain
- plesk.zergnet.io
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 30, 2026.
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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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