SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cm-montalegre.pt
SSL/TLS Certificate
SSL/TLS Certificate for cm-montalegre.pt
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.cm-montalegre.pt
- Valid from
- Nov 26, 2025
- Valid until
- Dec 28, 2026 (52 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7C6778A4C7860DC67D65B453
- SHA-256 fingerprint
- 35:79:FC:83:BF:AE:E6:03:21:28:EC:AF:2F:75:CE:45:F2:18:0F:A7:52:9E:BF:27:B1:F4:F0:13:51:FD:9E:69
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by cm-montalegre.pt's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cm-montalegre.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.