Domain Expiry Checker

Domain Details - RDAP & WHOIS Data in Your Browser

Instant, private domain lookups. Get RDAP/WHOIS data, expiration dates, nameservers, and registrar details right in your browser. Domain Details - RDAP & WHOIS Lookup Extension INSTANT DOMAIN INFORMATION AT YOUR FINGERTIPS Domain Details is the most advanced, privacy-focused domain lookup extension for Chrome. Get comprehensive WHOIS and RDAP data for any domain you encounter while browsing - no tab switching, no copying and pasting, no interruptions to your workflow. Whether you're a domain investor evaluating portfolios, a digital marketer researching competitors, or a web developer debugging DNS configurations, Domain Details puts all the information you need right in your browser. Domain Details transforms how you research domains online. Simply click the extension icon or use the popup to look up any domain instantly. Within seconds, you'll see: - Complete Registration Data: Registrant information, registrar details, registration and expiration dates - DNS Records: Nameservers, DNS configuration, and propagation status - Domain Status: Current status codes and their meanings - Contact Information: Administrative and technical contacts when publicly available - Full WHOIS/RDAP Records: Raw data for technical analysis - Domain Availability: Quick checks for registration status All of this happens without leaving your current page. No more switching tabs, opening new windows, or interrupting your research flow. ONE-CLICK LOOKUP Click any domain mention on any webpage to instantly see its complete WHOIS data. The extension intelligently detects domain names and makes research effortless. ALWAYS VISIBLE POPUP Domain information appears in a clean, well-organized popup that doesn't interfere with your browsing. Review the data you need and close it when you're done - simple as that. LIGHTNING-FAST RESULTS Our optimized RDAP-first lookup system delivers results in milliseconds, not seconds. We prioritize modern RDAP protocols before falling back to traditional WHOIS, ensuring you always get the fastest, most accurate data. SMART DOMAIN DETECTION The extension automatically recognizes domain names in any context - marketplace listings, forum posts, email addresses, articles, documentation, and more. COMPREHENSIVE DATA DISPLAY See everything from registration dates to nameserver configurations, all formatted for easy reading. Technical details are organized logically so you can find what you need instantly. HISTORY TRACKING Every domain you look up is automatically saved to your local browser storage. Review your research history anytime, track domains over time, and never lose track of interesting finds. EXPORT OPTIONS Export domain data as JSON for further analysis, or copy information to your clipboard with one click. Perfect for building reports, sharing findings, or integrating with your workflows. OFFLINE-CAPABLE Your lookup history is stored locally in your browser, so you can review previously researched domains even without an internet connection. YOUR PRIVACY IS PARAMOUNT Unlike other domain lookup tools that track your searches, collect your data, or require account creation, Domain Details is built with privacy as a core principle: - No Tracking: We don't track which domains you look up, when you look them up, or how you use the extension - No Data Collection: Your search history stays on your device - we never see it, store it, or share it - No Analytics: We don't use Google Analytics, Facebook Pixel, or any tracking scripts - No Accounts Required: Install and use immediately - no sign-ups, no emails, no personal information - Minimal Permissions: We only request the absolute minimum permissions needed to function All your lookup history is stored locally in your browser using Chrome's storage API. This means: - Your data never leaves your device unless you're making a lookup request - Instant access to your history without server roundtrips - Complete control over your data - clear it anytime from the extension - Works offline for reviewing previously looked-up domains - No vendor lock-in - your data isn't trapped in our servers This local-first approach means faster performance, better privacy, and you maintain complete ownership of your research data. STEP 1: INSTALL THE EXTENSION Add Domain Details to Chrome with one click. No configuration needed, no account creation, no setup process. The extension is ready to use immediately after installation. STEP 2: BROWSE NORMALLY Continue browsing the web as you normally would. The extension works silently in the background, ready when you need it. STEP 3: LOOK UP ANY DOMAIN When you encounter an interesting domain: - Click the Domain Details icon in your Chrome toolbar - Type or paste the domain name - Hit Enter or click the lookup button - Results appear instantly in a clean popup STEP 4: REVIEW AND EXPORT Browse through the comprehensive domain information, export what you need, or close the popup and continue browsing. All lookups are automatically saved to your local history. --------------------------------------------------------------- PERFECT FOR PROFESSIONALS --------------------------------------------------------------- Research domains faster than ever while browsing marketplaces like Sedo, Afternic, or GoDaddy Auctions: - Check expiration dates instantly to identify drop opportunities - Verify current ownership and registrar before making offers - Track competitor portfolios and investment strategies - Quickly assess domain age and history - Analyze registrar distribution across portfolios - Research nameserver patterns to identify professional investors Streamline competitor research and opportunity identification: - Analyze competitor domain portfolios and strategies - Find domain owner contact information for outreach - Identify domain registration patterns and trends - Research potential partnership opportunities - Verify domain authenticity before link building - Check domain age for SEO analysis - Investigate expired domains for content recovery Debug DNS issues and verify configurations without leaving your IDE or documentation: - Check nameserver configurations instantly - Verify domain ownership before making changes - Debug DNS propagation issues in real-time - Validate SSL certificate domain matches - Research API endpoint domains - Verify third-party service domains - Check domain status codes for troubleshooting Investigate suspicious domains and verify legitimacy: - Quick lookups during phishing investigations - Verify domain registration details for security assessments - Research potentially malicious domains - Check domain age to identify suspicious recently-registered domains - Investigate nameserver patterns in threat analysis - Verify domain ownership for incident response Monitor and protect your brand's domain portfolio: - Track similar domain registrations - Monitor expiration dates across your portfolio - Identify potential trademark infringements - Research domain squatting attempts - Verify registrar security across your domains We prioritize RDAP (Registration Data Access Protocol) over traditional WHOIS. RDAP is the modern successor to WHOIS, offering: - Faster responses: Optimized protocol with less overhead - Structured data: JSON-formatted responses instead of inconsistent text - More reliable: Standardized across all registries and registrars - Better accuracy: Real-time data directly from authoritative sources - Future-proof: The official replacement for WHOIS, supported by ICANN When RDAP isn't available for a TLD, we automatically fall back to WHOIS, ensuring you always get results. Your lookup history lives in your browser, not our database. This means: - Faster access to your history - Complete privacy - we never see what you look up - No data breaches - your data isn't on our servers to be breached - No vendor lock-in - your data stays with you Every aspect is built for speed: - Efficient RDAP protocol usage - Smart caching to avoid redundant lookups - Minimal extension footprint - Optimized popup rendering - Instant local history access No cluttered interfaces, no confusing layouts - just clean, well-organized domain information that's easy to read and understand. Works with ALL top-level domains: - Generic TLDs (.com, .net, .org, .info, etc.) - Country code TLDs (.uk, .de, .ca, .au, etc.) - New gTLDs (.app, .dev, .io, .ai, .xyz, etc.) - Sponsored TLDs (.edu, .gov, .mil, etc.) We only request permissions necessary for core functionality: - Storage: To save your lookup history locally in your browser - Active Tab: To enable the popup and read domain names when you choose to look them up We do NOT request: - Access to all websites - Ability to modify page content - Access to your browsing history - Access to your bookmarks or passwords --------------------------------------------------------------- WHAT DATA YOU'LL SEE --------------------------------------------------------------- REGISTRATION INFORMATION - Domain name and TLD - Registrar name and IANA ID - Registration date (domain age) - Last updated date - Expiration date - Domain status codes (with explanations) RAW WHOIS/RDAP - Complete unformatted response - JSON structure (for RDAP) - Plain text (for WHOIS) - Perfect for technical analysis or integration 1) Install: Click "Add to Chrome" and confirm the installation 2) Pin the extension (optional): Click the puzzle icon in Chrome toolbar, find Domain Details, and click the pin icon for quick access 3) Start looking up domains: Click the extension icon, type a domain, and press Enter 4) Explore your history: Open the extension popup and switch to the History tab to see all your previous lookups While browsing domain marketplaces: 1) See a domain you're interested in 2) Click the extension icon 3) Paste the domain name or type it 4) Review registration details, expiration date, and ownership info 5) Make an informed decision in seconds When researching competitors: 1) Visit competitor website 2) Look up their main domain and any subdomains 3) Check registration dates to see how long they've been operating 4) Review nameservers to identify their hosting provider 5) Look for patterns across multiple competitor domains When troubleshooting issues: 1) Look up the problematic domain 2) Check nameserver configuration 3) Verify domain status codes 4) Compare with expected configuration 5) Export data for documentation Track your domain investments: 1) Look up each domain in your portfolio periodically 2) Monitor expiration dates 3) Verify registrar settings 4) Check for any status changes 5) Export data for spreadsheet tracking Q: Is this extension really free? A: Yes, completely free forever. No premium tiers, no hidden costs, no "upgrade now" prompts. Q: Do you track what domains I look up? A: No. Your lookup history is stored only in your browser's local storage. We never see, store, or track what you search for. Q: Why does the extension need storage permission? A: To save your lookup history locally in your browser so you can review past searches. This data never leaves your device. Q: Does this work with all domain extensions? A: Yes! We support all TLDs - generic (.com, .net), country codes (.uk, .de), and new gTLDs (.app, .io, .xyz, etc.). Q: What's the difference between RDAP and WHOIS? A: RDAP is the modern, faster, more reliable successor to WHOIS. We use RDAP whenever possible for better performance and accuracy, falling back to WHOIS when needed. Q: Can I use this offline? A: You can review your lookup history offline, but new lookups require an internet connection to fetch current domain data. Q: Do I need a DomainDetails.com account? A: No! The extension works independently without any account or sign-up. Q: How do I clear my lookup history? A: Open the extension popup, go to the History tab, and click "Clear History" at the bottom. Q: Can I look up multiple domains at once? A: Currently, you can look up one domain at a time. Bulk lookup functionality is on our roadmap. WE NEVER: - Track your searches or browsing - Collect personal information - Store your lookup history on our servers - Sell your data to third parties - Inject ads or tracking scripts - Require account creation - Request unnecessary permissions WE DO: - Use encrypted HTTPS for all lookups - Follow Chrome extension best practices - Regularly update for security - Maintain transparent privacy policies - Respect user privacy as a fundamental right NEED HELP? - Visit our website: domaindetails.com - Extension documentation: domaindetails.com/chrome-extension - Knowledge base: domaindetails.com/kb - RDAP guide: domaindetails.com/kb/rdap-explained If you encounter any issues, please report them through the Chrome Web Store support tab or our website contact form. We respond to all reported issues promptly.

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