# Query.Domains

> Free domain tools for WHOIS lookup, bulk availability, DNS resolution, email authentication, TLD price comparison, and domain valuation. No signup required. 1000+ TLDs supported with live registry data.

Query.Domains is a platform for engineers, founders, and domain investors. It provides fast, accurate domain tools powered by authoritative data sources: WHOIS/RDAP registry servers, Cloudflare DNS-over-HTTPS, Certificate Transparency logs, and real-time registrar price feeds. All tools are free with no signup required.

## Tools

- [WHOIS Lookup](https://query.domains): Single-domain WHOIS, RDAP, real-time availability, and registrar price quotes in one search box
- [Domain Age Checker](https://query.domains/tools/domain-age-checker): Check when a domain was first registered and its age in years, months, and days
- [Domain Expiry Checker](https://query.domains/tools/domain-expiry-checker): Find the exact expiration date and a live countdown of days remaining
- [Expired Domain Checker](https://query.domains/tools/expired-domain-checker): Decode EPP status codes to see if an expired domain is grabbable or locked
- [Bulk Domain Search](https://query.domains/tools/bulk-domain-search): Stream availability across 100+ TLDs in parallel for a single label
- [Domain Name Generator](https://query.domains/tools/domain-name-generator): Turn a seed keyword into brandable, available variants across TLD groups
- [Subdomain Finder](https://query.domains/tools/subdomain-finder): Discover subdomains via public Certificate Transparency logs with first-seen and last-seen dates
- [Domain to IP Lookup](https://query.domains/tools/domain-to-ip): Resolve A/AAAA/MX/TXT/NS/CAA records via Cloudflare DNS-over-HTTPS
- [Email Domain Checker](https://query.domains/tools/email-domain-checker): Audit MX, SPF, DKIM, and DMARC with an A-F grade and provider detection
- [TLD Price Comparison](https://query.domains/tools/domain-price-comparison): Compare first-year and renewal prices across .com, .ai, .io, .xyz and more
- [Cheap Domain Finder](https://query.domains/tools/cheap-domain-finder): Find the lowest-priced available domains for a label with honest renewal pricing
- [Domain Value Checker](https://query.domains/tools/domain-value-checker): Score a domain on a 0-100 signal scale across TLD, length, readability, age, and traffic
- [Ahrefs Bulk Domain Rank Checker](https://query.domains/tools/ahrefs-bulk-domain-rank-checker): Compare Ahrefs Domain Rating (DR) for up to 100 domains in one table

## Learn More

- [Blog](https://query.domains/blog): Articles about domain investing, DNS, and online branding
- [Pricing](https://query.domains/pricing): Free tier and Pro plan details
- [Contact](https://query.domains/contact): Get in touch with the team

## Optional

- [llms-full.txt](https://query.domains/llms-full.txt): Full documentation with detailed tool descriptions and data sources
- [Privacy Policy](https://query.domains/privacy): How we handle your data
- [Terms of Service](https://query.domains/tos): Usage terms and conditions