SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
navega-aqui.pt
SSL/TLS Certificate
SSL/TLS Certificate for navega-aqui.pt
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- navega-aqui.pt
- Valid from
- Jul 15, 2026
- Valid until
- Oct 13, 2026 (expired 23 days ago)
- Public key
- EC 256-bit
- Serial
- 05DC3B1CEBE036F2F0FBCD613A6CE5C5609A
- SHA-256 fingerprint
- 30:00:0F:C6:47:76:8D:97:42:E4:7A:09:07:86:F0:A8:53:C0:D1:BB:90:1C:33:F8:26:AC:63:3B:BF:69:BA:B9
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 Oct 26, 2026.
Never get surprised by navega-aqui.pt's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch navega-aqui.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.