Directory / Domain and DNS monitoring

Category top spot is open. If it sells, the paid listing will be labeled Sponsored and will sit above this list. It will not change the A–Z order. See the rate card.

• MXToolbox

  Free

  Public DNS and mail lookups, including MX records and blacklist checks.

  DMARC, SPF, and DKIM · Domain and DNS monitoring · Free checkers

  Free tier checked. Checked 14 Oct 2026.

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• OrionCmd

  Made by usFreemium

  Uptime, certificates, and passive website checks, with one website free.

  Uptime and certificates · Domain and DNS monitoring · Free checkers

  Free tier checked. Checked 14 Oct 2026.

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• URIports

  Paid

  DMARC, DNS, and certificate monitoring with prices printed on the site.

  DMARC, SPF, and DKIM · Domain and DNS monitoring · Uptime and certificates

  Trial only. Checked 14 Oct 2026.

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