SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
montanasoft.com
SSL/TLS Certificate
SSL/TLS Certificate for montanasoft.com
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- montanasoft.com
- Valid from
- Dec 16, 2021
- Valid until
- Jan 16, 2023 (expired 1285 days ago)
- Public key
- RSA 2048-bit
- Serial
- 06ED93AA6C0D92648E80F643E9EFCEA7
- SHA-256 fingerprint
- EA:9B:32:1D:FE:1E:1A:2F:6C:FD:10:3E:9F:F2:BF:7D:D9:E4:63:CF:1D:A0:42:57:7B:09:52:85:7D:D0:ED:05
- Chain
- Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority → AAA Certificate Services
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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