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Direct Registry

Everything you need for domain research

Free tools for everyone. Pro adds monitoring, alerts, and aftermarket price and availability tracking for all tracked domains.

Domain Lookup

WHOIS, RDAP, DNS records, SSL certificates, and pricing in one place.

PRO

Domain Monitoring

Track WHOIS, expiry, aftermarket price changes, and availability across all tracked domains with instant alerts.

Chrome Extension

Get domain info instantly while browsing any website.

MCP Server

Connect AI agents and developer tools to our domain data.

1,500+ TLDs & More

Wayback Machine history, TLD info, registrar data, and bulk lookups.

Free Academy

Learn domain investing, DNS fundamentals, and security best practices.

Aftermarket Search

Domain Taken? Check if It's Listed for Sale

When you search for a registered domain, we automatically check major marketplaces to see if it's available for purchase — showing you prices, auction status, and more. Pro also tracks aftermarket price changes and availability for all tracked domains.

Check buy-now prices instantly

Compare prices across platforms

Afternic

World's largest domain marketplace

Featured

Sedo

Global domain trading platform

Namecheap

Integrated registrar marketplace

Seller Hub

Premium domain marketplace

Dynadot

Auctions & buy-now listings

Atom

Premium domain marketplace

New

NameSilo

Budget-friendly marketplace

Unstoppable Domains

Web3 & traditional domains

All marketplace data is fetched in real-time when you search for a domain

Search All Marketplaces

Domain Details Pro

Monitor Your Domains. Get Instant Alerts.

Track WHOIS changes, nameserver updates, expiration dates, and aftermarket price and availability changes for all tracked domains. Get notified the moment something changes.

Monitored Domains

2 of 25 slots used

simplebytes.com

active

2 changes

Last checked 2h ago

Last changed 3 days ago

Recent Changes

Nameservers

3 days ago

− ns1.godaddy.com, ns2.godaddy.com

+ ns1.cloudflare.com, ns2.cloudflare.com

Registrar

3 days ago

− GoDaddy.com, LLC

+ Cloudflare, Inc.

nutrified.com

active

1 change

Last checked 4h ago

Last changed 7 days ago

Instant Email Alerts

PRO

Get notified when registration details, nameservers, expiry dates, or aftermarket prices or availability change.

New alert: simplebytes.com nameservers changed

Cross-Device Sync

PRO

Access your search history and monitored domains from any device.

Desktop

Mobile

Tablet

90-Day Change History

PRO

Track all changes over time with visual diffs, including aftermarket price and availability changes.

1,500+

TLDs Supported

Daily Checks

Days History

Domains Monitored

$99 / year

Cancel anytime • All plans include core features

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40K+

Monthly Visitors

30K+

Domains Searched

Zero

Data Sold

Domain Success Stories

We've collected fascinating domain stories from across the internet — from small, persistent $500 sales to multi-million dollar acquisitions. Learn how domains changed hands, the negotiations behind them, and the strategies that led to success.

InvestmentAI Brand

Cursor.com

Premium brand domain upgrade

Read Story

Case StudySaaS Scale

Paddle.com

Category-defining SaaS domain

Read Story

Brand StrategyBrand Match

Public.com

Consumer finance brand domain

Read Story

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Domain Details Academy

Whether you're buying your first domain or building a portfolio, our free courses will teach you everything from DNS fundamentals to advanced valuation strategies. No fluff, just practical knowledge from industry experts.