Tools & Resources

Settings

DNS Providers

Google DNS

Cloudflare

Select which providers to query. At least one must be enabled.

Primary Provider

Used for standard lookups when comparison is disabled.

Appearance

Dark Mode

Dark mode is currently the only supported theme.

About DNSTools

DNSTools is a privacy-focused, client-side web toolkit for DNS lookups, WHOIS/RDAP domain registration queries, and email security analysis. All queries run directly from your browser — nothing is logged by this application.

Providers:

• dns.google/resolve — DNS (Primary)
• cloudflare-dns.com/dns-query — DNS (Fallback)
• dns.quad9.net/dns-query — DNS (Fallback)
• data.iana.org/rdap — WHOIS/RDAP Bootstrap

Privacy First Architecture

100% Client-Side: All logic runs locally in your browser.
No Backend Tracking: We do not store or see your queries.
Secure Transport: Uses HTTPS for all DNS requests.

Welcome to DNSTools

Your privacy-focused, client-side DNS, WHOIS & email security toolkit.

100% Client-Side

All queries run directly from your browser — DNS via DoH, WHOIS via RDAP. No backend tracking.

Power User? Use Ctrl+K

Navigate anywhere without leaving your keyboard.

Ctrl + K

Try it anytime to search tools, history, or concepts.

Comprehensive Toolkit

DNS, WHOIS, email security & threat intelligence — all in one place.

DNS Lookup

WHOIS

MX & DMARC

Headers

Threat Intel

DNSTools

Tools & Resources

Useful Tools & Resources

Command Line Tools

Online DNS Tools

Documentation

About DNSTools

Features

Open Source

Settings

DNS Providers

Primary Provider

Appearance

About DNSTools

Providers:

Privacy First Architecture

Welcome to DNSTools

100% Client-Side

Power User? Use Ctrl+K

Comprehensive Toolkit