SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for xignis.com

Valid
Issued by (CA)
Let's Encrypt
Subject
xignis.com
Valid from
Sep 21, 2026
Valid until
Dec 20, 2026 (78 days remaining)
Public key
EC 256-bit
Serial
058CD7549A8C2D59EDC4BF63025D5C0DC7C8
SHA-256 fingerprint
EE:E9:B7:FE:BD:E3:64:9A:00:0A:61:F2:11:E2:47:31:9F:9D:D8:35:98:67:8D:1C:56:59:24:E4:2F:DA:4F:A2
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
www.xignis.com, xignis.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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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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