SSL/TLS Certificate Lookup

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

citei.com.mx

SSL/TLS Certificate

Whois RDAP DNS Records Certificate Uptime Diagnostics History Hide Contact Info

SSL/TLS Certificate for citei.com.mx

Valid

Issued by (CA): Sectigo Limited
Subject: citei.com.mx
Valid from: Apr 1, 2026
Valid until: Oct 16, 2026 (61 days remaining)
Public key: RSA 2048-bit
Serial: E7152949CF73346A620C2FF76A1A8CCF
SHA-256 fingerprint: 8B:54:1A:8E:29:60:7E:E5:C8:1E:E0:63:08:55:F8:5C:0C:7A:90:99:48:C0:46:67:E3:9E:74:0A:D4:24:94:C3
Chain: Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46

Subject Alternative Names (4)

citei.com.mx, mail.citei.com.mx, portal.citei.com.mx, www.citei.com.mx

Certificate Authority Authorization (CAA)

The serving CA (Sectigo Limited) is not among the authorities this domain's CAA records authorize (comodoca.com, digicert.com). This can indicate a misconfiguration or an unexpected issuance.

Never get surprised by citei.com.mx's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch citei.com.mx 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.