SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
longchi.com
SSL/TLS Certificate
SSL/TLS Certificate for longchi.com
Expired- Issued by (CA)
- TrustAsia Technologies, Inc.
- Subject
- 28517.com
- Valid from
- Jul 31, 2021
- Valid until
- Jul 30, 2022 (expired 1497 days ago)
- Public key
- RSA 2048-bit
- Serial
- 0B3D53D36779B32C0CBCC602DB8945A4
- SHA-256 fingerprint
- A5:5F:4A:00:EA:5A:FD:F5:72:9C:88:4D:5A:03:18:10:60:9A:E9:AB:60:95:8E:48:AF:78:E1:04:B1:3E:7C:1F
- Chain
- TrustAsia TLS RSA CA → DigiCert Global Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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