SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1a-software.at
SSL/TLS Certificate
SSL/TLS Certificate for 1a-software.at
Valid- Issued by (CA)
- Google Trust Services
- Subject
- 1a-software.at
- Valid from
- Sep 1, 2026
- Valid until
- Nov 30, 2026 (72 days remaining)
- Public key
- EC 256-bit
- Serial
- 925F586C8CEF681513C702C4F35BB826
- SHA-256 fingerprint
- 88:95:93:8A:0A:80:80:A3:B7:38:ED:BC:33:F1:40:BE:7B:25:95:AF:88:89:51:E9:08:2B:8C:42:8B:54:22:BF
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by 1a-software.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1a-software.at 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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