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Checkmate vs DNSai

Both stand on dns monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Checkmate

Free plan APILinuxMac+3

Checkmate brings service checks, server metrics, PageSpeed tracking, and incident alerts into a self-hosted dashboard. It includes all features without monitor limits, but users give up managed cloud and must handle deployment themselves.

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DNSai

Free plan APIMacWeb+1

DNSai turns public DNS records into domain profiles and change alerts, with plans that differ in quotas and access to integrations. Vendor records provide evidence of published records, not proof of seats, spending, or an active contract.

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The facts

CheckmateDNSai
Free planYesYes
Open sourceNot publishedNot published
Runs onAPI, Linux, Mac, Self-hosted, Web, WindowsAPI, Mac, Web, Windows
Lowest paid planFree or on requestPro: $79 a month
Plans published15
MakerCheckmateNot published
Websitecheckmate.soapp.dnsai.com
On dns monitoring software#1 of 37#2 of 37

Checkmate: what it does well

  • No monitor limits on the free plan
  • Checks many service and game server types
  • Tracks server hardware metrics
  • Public status dashboards support custom branding
  • Metrics and accounts stay in the configured database

What to know first

  • Self-hosting is required
  • No one-click migration import
  • No paid support tier
  • Free plan lists 12 alert channels

DNSai: what it does well

  • Scans more than 50 DNS record types
  • Tracks DNS history and alerts on record changes
  • Free plan includes 100 domains and 100 scans daily
  • Desktop processing keeps domain data on the user's machine

What to know first

  • Free plan has no API or MCP
  • Pro plan has no API or MCP
  • REST API starts with Enterprise plans and above
  • DNS Explorer lacks traditional technical assistance

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