SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hk-compu.com
SSL/TLS Certificate
SSL/TLS Certificate for hk-compu.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.hk-compu.com
- Valid from
- Nov 21, 2025
- Valid until
- Dec 21, 2026 (110 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 766BDF36B4D3D4DCC6D49904E7B90035
- SHA-256 fingerprint
- 44:B0:2D:2E:07:F7:16:BE:99:21:16:CA:8B:B5:41:08:EB:C4:42:05:28:4E:80:5D:E1:75:02:A9:FE:20:DC:1B
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Aug 19, 2026.
Never get surprised by hk-compu.com's certificate expiring
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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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