Free DNS Tools for Developers and DevOps Teams

Professional DNS utilities to validate, scan, and monitor your domains. All tools are completely free and designed for developers, system administrators, and DevOps professionals.

CAA Record Validator

Validate Certificate Authority Authorization (CAA) records for your domain. Ensure your SSL/TLS certificates are issued only by authorized certificate authorities.

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DNS Propagation Checker

Check how your DNS changes are propagating across 40+ global resolvers. See real-time results from every corner of the internet.

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Domain Scanner

Scan any domain to discover DNS records, nameservers, and configuration details. Get instant insights into domain DNS setup and potential issues.

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Public DNS Servers List

Browse the most complete list of public DNS servers worldwide. Find the fastest and most reliable DNS resolvers including Google, Cloudflare, and more.

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DNS Server Widget

Embed a public DNS servers widget on your website. Provide your visitors with easy access to reliable DNS server information.

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Why Use DNS Tools?

DNS tools are essential utilities for anyone managing domains, websites, or network infrastructure. Whether you're a developer, system administrator, or DevOps professional, having access to reliable DNS tools helps you diagnose issues, validate configurations, and ensure your domains are properly configured.

Our comprehensive collection of free DNS tools provides everything you need to check DNS records, validate security configurations, and monitor domain health. From DNS checker utilities to CAA record validation and complete domain scanning, these tools help you maintain secure and reliable DNS infrastructure without any cost.

All DNS tools on this page are completely free to use, with no registration required. We believe in providing professional-grade DNS utilities to the developer community, helping you troubleshoot DNS issues, verify configurations, and maintain best practices for domain management.

Protect Your Brand

Don't Let DNS Changes Catch You Off Guard

Your domain is your brand. Get instant alerts when something changes—before your customers notice.

DNS Record Monitoring - Instant alerts when your DNS changes
Phishing Domain Detection - Catch brand impersonators early
WHOIS Monitoring - Track registrar and expiration changes
DNS Outage Detection - Know immediately if your DNS goes down
Multi-Channel Alerts - Email, Slack, Discord, PagerDuty & more

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