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Access DNS record checks, IP lookup, WHOIS, propagation tools and more—all in one place.

DNSChecker.org is a comprehensive, free online platform offering dozens of DNS, IP, developer, security, and productivity tools — all in a single, easy-to-use interface. Ideal for webmasters, developers, and IT professionals, it simplifies complex tasks into quick, actionable steps.

DNS Tools

  • DNS Lookup: View all DNS record types (A, AAAA, MX, CNAME, TXT, etc.) across global servers—great for troubleshooting domains.
  • Propagation Checker: Monitor DNS changes worldwide; the visual map helps track if updates have reached all regions.
  • SPF/DKIM/DMARC Validators: Ensure email authentication records are correctly configured to protect against spoofing.
  • MX, CNAME, NS, PTR, DNSKEY, DS Lookups: Targeted queries for specific record types—ideal for deeper diagnostics.
  • Domain DNS Health Checker: Runs a full diagnostic to detect config issues and vulnerabilities.

IP Tools

  • What Is My IP: Displays your current public IPv4 and IPv6 address, including geolocation, ISP, browser user-agent, and screen resolution.
  • IP Location Lookup: Aggregates geodata — country, city, ISP, proxy/Tor/spam flags using multiple databases.
  • Reverse IP Lookup & Domain-to-IP: Find domains linked to an IP or retrieve the IP for any domain name.
  • IP WHOIS Lookup: Identifies ownership, ASN, registration details, and abuse contacts for any IPv4 or IPv6 address.

Developer & Network Tools

Includes essentials like Ping, Port Checker, Traceroute, HTTP Headers, MAC Address, ASN Lookup, and even SEO‑oriented tools like Password Generator and robots.txt generator.

Why Use DNSChecker.org

  • All-in-One Utility – No need to juggle multiple websites or install extra tools.
  • Free & No Login – Instant access to every feature without paywalls or sign-up friction.
  • Reliable & Trusted – High reputation, regularly cited in domain‑tech roundups for accuracy and speed.
  • Educational & Developer-Friendly – Clear explanations, step-by-step guides, and FAQs help both beginners and pros use it effectively.
  • Not Just DNS – Includes power tools for IP and network diagnostics, WHOIS info, and basic productivity — all for free.

Bottom line:
DNSChecker.org is a must-have toolbox for anyone working with domains, servers, or networks. Its mix of DNS, IP, and network tools under a fast, user-friendly interface makes it ideal for diagnosing issues, ensuring configurations, and monitoring performance. Great for IT pros, web managers, and anyone looking to boost site reliability and speed.

Explore the full suite of features and streamline your workflow today at DNSChecker.org.

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About

This is a growing collection of tools I use, test, and genuinely recommend through JKP.Agency. Some links may be affiliate links - which means if you choose to explore or purchase through them, you’re supporting the time I put into curating and maintaining this list (at no extra cost to you). Your support also helps me continue the work of our nonprofit, the Power of Listening Foundation, which is not affiliated with these tools but deeply aligned with the spirit of care, presence, and contribution. I invite you to explore, discover, and share what serves you best.

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