SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hktic.org
SSL/TLS Certificate
SSL/TLS Certificate for hktic.org
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- hktic.org
- Valid from
- Nov 5, 2024
- Valid until
- Feb 3, 2025 (expired 534 days ago)
- Public key
- RSA 2048-bit
- Serial
- 042B369161A43406A9FB4BE5C73885806FB7
- SHA-256 fingerprint
- EF:A2:1B:52:A7:A0:DD:FE:BF:EC:26:07:DA:F7:A0:31:9A:EF:41:8C:99:5F:CC:B9:6B:04:A2:7F:CF:26:CA:43
- Chain
- R11 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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