SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
celestara.net
SSL/TLS Certificate
SSL/TLS Certificate for celestara.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- celestara.net
- Valid from
- Aug 21, 2026
- Valid until
- Nov 19, 2026 (72 days remaining)
- Public key
- EC 256-bit
- Serial
- 06560A75B23EA2FD1CDD609E959249700E89
- SHA-256 fingerprint
- 66:8B:9E:E6:61:9F:4B:5A:49:FC:93:63:B4:25:52:BB:B1:28:D6:12:19:9A:AE:A9:09:67:F1:CF:6D:22:5E:26
- 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.
This certificate has been served since Sep 7, 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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