SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gebouwalarm.nl
SSL/TLS Certificate
SSL/TLS Certificate for gebouwalarm.nl
Valid- Issued by (CA)
- Google Trust Services
- Subject
- gebouwalarm.nl
- Valid from
- Oct 3, 2026
- Valid until
- Jan 1, 2027 (77 days remaining)
- Public key
- EC 256-bit
- Serial
- 2B45B9DD0563585C135F899B2BF5A0C5
- SHA-256 fingerprint
- F9:23:34:2D:21:45:E1:25:4F:82:4E:EF:CD:9E:96:C1:2B:22:72:1B:06:D5:07:E0:5B:AD:F8:79:FB:91:AF:66
- Chain
- WE1 → GTS Root R4
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 Sep 24, 2026.
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This is today's certificate. Turn on monitoring and we'll watch gebouwalarm.nl 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, 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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