SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for zingg.net

Valid
Issued by (CA)
Let's Encrypt
Subject
zingg.net
Valid from
Aug 12, 2026
Valid until
Nov 10, 2026 (58 days remaining)
Public key
RSA 2048-bit
Serial
05B8256BBD6D3D1B96807208ECB815E2D3CE
SHA-256 fingerprint
C0:26:6A:EF:F0:8D:5C:9E:C0:B1:8A:36:A4:C7:F4:D9:73:FD:67:CB:CC:14:96:7F:6E:03:A4:C0:7A:66:46:75
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.zingg.net, zingg.net

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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