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 spfil.com.br

Valid
Issued by (CA)
Let's Encrypt
Subject
*.spfil.com.br
Valid from
Jul 11, 2026
Valid until
Oct 9, 2026 (49 days remaining)
Public key
RSA 2048-bit
Serial
056ED1C8734F3651D1842E3FCE77C2D6DC50
SHA-256 fingerprint
36:2D:27:58:C0:41:7B:D6:3D:62:50:43:2B:A1:FE:05:99:B9:C1:42:46:57:EC:92:50:1D:69:F5:72:9E:04:14
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.spfil.com.br, spfil.com.br

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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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