Overview
Research the current domain or a domain shown on marketplace landers. View registration data, sale listings, and observed history.
Domain Details brings practical domain research into your browser. Open the toolbar popup to research the current website, enter a domain manually, or use the right-click menu on selected text and links. On marketplace landing pages, the extension extracts the actual domain being offered—for example, seocourse.com from an Afternic /forsale/seocourse.com URL—rather than looking up the marketplace itself. Features: - RDAP registration details with direct WHOIS fallback - Marketplace search from the popup - Marketplace-lander domain detection - Up to 20 changed registration snapshots per domain, stored locally - Field-level comparison between locally observed snapshots - Raw RDAP/WHOIS response view - Context-menu research for selected text and links - Prefilled DomainDetails.com result and monitoring links Privacy: The extension activates only after a toolbar or context-menu action. Registration lookups send the requested domain to an independent Cloudflare Worker; marketplace searches send it to the Domain Details API. Marketplace service analytics store the requested domain and result summary for reliability, service analytics, and abuse prevention as described in the privacy policy. Anonymous usage analytics are presented on first run, enabled by default, and can be turned off before continuing or later in the popup. Analytics never include searched domains, complete page URLs, page titles, marketplace names, WHOIS/RDAP content, local history, or account information. Extension data is not sold or used for targeted advertising. No Domain Details account is required for core lookup features.
Details
- Version2.0.2
- UpdatedSeptember 7, 2026
- Size255KiB
- LanguagesEnglish
- DeveloperSIMPLE BYTES APPS LIMITEDWebsite
483 Green Lanes LONDON N13 4BS GBEmail
info@domaindetails.comPhone
+48 500 450 015 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S234355128
Privacy
Domain Details - RDAP, WHOIS & Marketplace Search has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Domain Details - RDAP, WHOIS & Marketplace Search handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site