SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jan-architectuur.com
SSL/TLS Certificate
SSL/TLS Certificate for jan-architectuur.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jan-architectuur.com
- Valid from
- Oct 16, 2026
- Valid until
- Jan 14, 2027 (65 days remaining)
- Public key
- EC 256-bit
- Serial
- 0678B6C13D40D25DE9464FE497BB71391350
- SHA-256 fingerprint
- 1F:0F:D4:47:67:BE:BF:7B:E4:D5:9B:E9:09:17:57:1F:36:20:2D:6B:D3:DA:22:4D:77:53:0F:67:55:62:5D:00
- 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.
We've observed 2 previous certificates for this host. This certificate has been served since Oct 23, 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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