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 a-zroof.ing

Valid
Issued by (CA)
Google Trust Services
Subject
a-zroof.ing
Valid from
Sep 28, 2026
Valid until
Dec 27, 2026 (74 days remaining)
Public key
EC 256-bit
Serial
DA6E9B552DFF7D4A13E583186082D413
SHA-256 fingerprint
1F:28:22:35:2F:4A:9C:0B:A7:33:06:CD:02:18:76:E4:83:8F:B4:42:29:D4:7D:E0:E1:2B:A1:D4:E5:70:6D:E1
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.a-zroof.ing, a-zroof.ing

Certificate Authority Authorization (CAA)

The serving CA (Google Trust Services) is authorized by this domain's CAA records (comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com).

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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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