SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
spectra-sales.com
SSL/TLS Certificate
SSL/TLS Certificate for spectra-sales.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.spectra-sales.com
- Valid from
- Jul 13, 2026
- Valid until
- Oct 11, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 055124979FC67DA3C74023F6C4C4A2441334
- SHA-256 fingerprint
- B4:B2:7D:1F:03:F3:D9:D2:C1:20:21:54:A4:50:C2:93:EF:A0:9E:2F:6D:24:58:4D:D0:D7:8C:55:74:5F:6D:F6
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 3, 2026.
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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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