SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
just-allergy.com
SSL/TLS Certificate
SSL/TLS Certificate for just-allergy.com
Self-signed- Issued by (CA)
- SomeOrganization
- Subject
- ip-172-31-20-4
- Valid from
- Aug 6, 2019
- Valid until
- Aug 5, 2020 (expired 2187 days ago)
- Public key
- RSA 2048-bit
- Serial
- 0A2D
- SHA-256 fingerprint
- 61:56:AE:02:F6:8D:1E:0D:54:8C:08:62:7B:B9:DB:DD:F3:91:84:36:26:97:DA:D2:B3:AF:7F:F0:01:4D:2B:26
- Chain
- ip-172-31-20-4
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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