SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cas-ma.com
SSL/TLS Certificate
SSL/TLS Certificate for cas-ma.com
Self-signed- Issued by (CA)
- cas-ma.performancebuilding.com
- Subject
- cas-ma.performancebuilding.com
- Valid from
- Nov 21, 2017
- Valid until
- Nov 21, 2018 (expired 2885 days ago)
- Public key
- RSA 2048-bit
- Serial
- 01B888D7F9
- SHA-256 fingerprint
- 8A:1A:7A:1D:2A:40:D8:2C:89:B9:D9:F8:1D:50:F4:83:96:09:33:CF:8F:3A:85:0E:7B:CF:BB:C8:E0:31:03:8F
- Chain
- cas-ma.performancebuilding.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by cas-ma.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cas-ma.com 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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