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 arbejdsmiljo.com

Valid
Issued by (CA)
Let's Encrypt
Subject
arbejdsmiljo.com
Valid from
Jun 18, 2026
Valid until
Sep 16, 2026 (47 days remaining)
Public key
EC 256-bit
Serial
0523BCE2A618CE79146E4C8E5C8C3F1D482A
SHA-256 fingerprint
B4:B2:23:F3:39:FF:6A:F1:E8:C6:AB:B4:D9:F7:CC:29:81:E0:30:0D:A7:AC:DD:03:A1:99:0D:F7:37:5E:FF:47
Chain
YE1 → Root YE → ISRG Root X2
Subject Alternative Names (2)
*.arbejdsmiljo.com, arbejdsmiljo.com

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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