SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
safe42.com
SSL/TLS Certificate
SSL/TLS Certificate for safe42.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- safe42.com
- Valid from
- Jun 1, 2026
- Valid until
- Aug 30, 2026 (29 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0561B2331DC9B77923C7F134D8AD0A95C5ED
- SHA-256 fingerprint
- B9:B0:94:A9:AA:A6:DA:4E:31:83:2A:AE:FA:F9:43:7D:34:B9:FB:6B:EC:EC:04:3E:70:06:B4:87:8B:0E:A5:05
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 20, 2026.
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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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