PubSpy.io

Find AdSense Publisher IDs on websites and discover domains using the same AdSense ID. Domain checker extension.

PubSpy.io helps users inspect the page they are viewing to detect AdSense publisher IDs, check public ads.txt relationships, discover related domains using the same publisher ID, view domain metrics when available, and export displayed research results to CSV. KEY FEATURES * AdSense ID Detection - Detect individual publisher IDs on supported pages after the user opens the extension * Domain Discovery - Discover related domains using the same AdSense publisher ID * Traffic Insights - View traffic estimates for discovered domains when available * Registration Data - Show domain registration dates when available * ads.txt Checks - Inspect public ads.txt relationships such as DIRECT and RESELLER * Outbound Link Research - Extract outbound links from the current page for review * CSV Export - Export displayed domain or outbound-link results to CSV * Persistent Results Tab - Keep research results open after the popup closes * Side panel - Keep the packaged research panel pinned beside the current website * Optional signed-in AI research on the same page (DeepSeek via pubspy.io) NEW IN v7.6.3 * Domain traffic and registration lookups go through https://pubspy.io/whois/ instead of calling the public whois Worker from the browser * The extension no longer sends X-Client-Token for those lookups; PubSpy.io injects the server token * Publisher-domain rows can still sync to pubspy.io/api/import/domains for the public /id dashboard HOW IT WORKS 1. Visit a webpage that uses AdSense or has public ads.txt data 2. Click the PubSpy.io extension icon 3. View the detected publisher ID, related domains, ads.txt status, and available metrics 4. Open the persistent results tab, export results to CSV, or open additional research links PRIVACY AND DATA HANDLING * The extension reads the current tab only after the user opens PubSpy.io * Local caches, recent lookups, result snapshots, traffic values, and registration dates are stored in chrome.storage.local * Lookup requests may contact host.io, pubspy.io/whois/, pubspy.io/api/import/domains, whoisdomain.charlie0simmon.workers.dev (older packaged versions), public ads.txt files, and public RDAP registry endpoints * PubSpy.io does not sell personal information * PubSpy.io does not use extension data to build advertising profiles * PubSpy.io is not affiliated with Google or AdSense PERMISSIONS USED * activeTab - inspect the current page only after the user opens the extension * scripting - run packaged scripts to detect publisher IDs and outbound links * storage - keep local cache, recent lookups, and result snapshots * tabs - open user-requested result pages and update badge state * downloads - save CSV exports when the user clicks an export button * identity - complete PubSpy.io sign-in through Chrome's protected extension authorization flow * sidePanel - keep the packaged research panel pinned beside the current website after the user clicks the icon USE CASES * Research AdSense implementations * Analyze publisher-domain relationships * Review monetization signals on supported pages * Export domain research for offline review * Compare related domains by traffic and registration data when available