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 w-ar.ch
Valid- Issued by (CA)
- Google Trust Services
- Subject
- w-ar.ch
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (74 days remaining)
- Public key
- EC 256-bit
- Serial
- 9A649FC6CEFC16AD0EF9A48414C3E41B
- SHA-256 fingerprint
- FE:B3:2F:98:03:5C:88:E4:57:B8:DE:83:71:9C:45:3C:6F:59:EA:C2:30:03:34:13:48:6C:74:22:A9:D4:47:EA
- Chain
- WE1 → GTS Root R4
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 Oct 6, 2026.
Never get surprised by w-ar.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch w-ar.ch 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.
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