SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-fontane.com.hk
SSL/TLS Certificate
SSL/TLS Certificate for a-fontane.com.hk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- a-fontane.com.hk
- Valid from
- Sep 23, 2026
- Valid until
- Dec 22, 2026 (87 days remaining)
- Public key
- EC 384-bit
- Serial
- 06CC504BE8F8F7F5187654A46F841FBA7E76
- SHA-256 fingerprint
- 89:04:A2:C0:DE:D2:7B:72:4E:A7:A0:5F:52:07:9F:AF:6D:B1:42:2E:BB:61:98:2F:CD:E1:B2:36:B2:46:30:F7
- 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.
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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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