SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jf-maia.pt
SSL/TLS Certificate
SSL/TLS Certificate for jf-maia.pt
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jf-maia.pt
- Valid from
- Oct 11, 2026
- Valid until
- Jan 9, 2027 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06ADBADC253E79C26E1D8E07ED5DD4BE24F5
- SHA-256 fingerprint
- 92:30:A1:FA:A5:BE:FF:E7:3A:C6:2E:09:19:85:76:93:F6:62:9F:C9:24:D7:CA:80:C3:2C:D7:A1:87:8E:9A:5D
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Nov 3, 2026.
Never get surprised by jf-maia.pt's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jf-maia.pt continuously, notifying you the moment anything moves across all three signals:
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, CNAME, TXT 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.