SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cassanya.net
SSL/TLS Certificate
SSL/TLS Certificate for cassanya.net
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- Jul 28, 2024
- Valid until
- Jul 28, 2025 (expired 421 days ago)
- Public key
- RSA 2048-bit
- Serial
- 66A69C36
- SHA-256 fingerprint
- 61:3F:35:4D:59:6C:67:ED:47:30:9F:22:6E:00:0B:0E:5B:81:72:61:B2:56:5C:EB:E3:C5:11:23:AF:7A:8D:62
- Chain
- Plesk
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 Sep 10, 2026.
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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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