SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
adf-dns.net
SSL/TLS Certificate
SSL/TLS Certificate for adf-dns.net
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- api.addefend.com
- Valid from
- Aug 18, 2026
- Valid until
- Nov 16, 2026 (50 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05CBA231AD44EF80EA629F85F67A01856002
- SHA-256 fingerprint
- 30:A9:5B:36:54:6C:D1:2D:1C:35:C6:3B:D8:80:66:C9:E4:7F:24:51:69:AE:9D:C1:77:0D:44:38:BC:FB:DA:96
- Chain
- YR2 → 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 Sep 24, 2026.
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This is today's certificate. Turn on monitoring and we'll watch adf-dns.net continuously, notifying you the moment anything moves across all three signals:
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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