SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
as-server.net
SSL/TLS Certificate
SSL/TLS Certificate for as-server.net
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.as-server.net
- Valid from
- Oct 28, 2025
- Valid until
- Nov 29, 2026 (126 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 6A446E4C3CDB67D53237A72C
- SHA-256 fingerprint
- FF:07:51:EA:68:CF:EE:5D:59:C0:B4:A9:BD:20:E0:48:10:13:70:86:DF:FB:2A:E8:95:8C:35:D9:0F:CD:E8:42
- 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 as-server.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch as-server.net 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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