SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nerd-wiz.com
SSL/TLS Certificate
SSL/TLS Certificate for nerd-wiz.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nerd-wiz.com
- Valid from
- Oct 18, 2026
- Valid until
- Jan 16, 2027 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 05B33CDD3607BBCFDBA9FCF81FB27D8B3180
- SHA-256 fingerprint
- 63:1E:5A:1E:B2:EC:0E:8A:82:70:31:CE:4F:27:8F:C8:CE:9F:18:6F:A4:55:E0:28:65:B8:DF:8B:60:AB:D9:71
- Chain
- YE2 → 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 22, 2026.
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Uptime
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DNS changes
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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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