Ad inspector is an in-app overlay that lets you perform real-time analysis of
test ad requests directly within a mobile app. For a list of ad inspector
features, see
Test your app with ad inspector.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-20 UTC."],[[["\u003cp\u003eAd inspector is an in-app overlay that lets authorized devices analyze test ad requests in real time within a mobile app, included with Google Mobile Ads SDK version 20.0.0 and higher.\u003c/p\u003e\n"],["\u003cp\u003eIt enables inspection of ad units, third-party adapters, mediation waterfalls, and bidding details, helping identify and resolve ad serving issues.\u003c/p\u003e\n"],["\u003cp\u003eLaunching ad inspector can be done through gestures configured in AdMob, programmatically using the provided API, or from the debug menu.\u003c/p\u003e\n"],["\u003cp\u003eSingle ad source testing allows developers to isolate and verify individual ad sources for bidding or waterfall mediation.\u003c/p\u003e\n"],["\u003cp\u003eAdvanced debugging features include sharing ad requests and responses, decoding third-party bidding parameters, and copying entire debugging outputs in JSON format.\u003c/p\u003e\n"]]],["Ad Inspector, an in-app tool for authorized devices, analyzes test ad requests. Key actions include inspecting ad units, third-party adapters, validating ad fills, identifying errors, and viewing mediation/bidding details. Users launch it via gestures, API, or debug menu. It facilitates ad source testing, waterfall/bidding configuration verification, custom event integration, and privacy signal viewing. Ad testing involves direct requests and single ad source focus. Troubleshooting includes managing gestures, bidding, adapters and custom events, by viewing error logs.\n"],null,["Ad inspector is an in-app overlay that lets you perform real-time analysis of\ntest ad requests directly within a mobile app. For a list of ad inspector\nfeatures, see\n[Test your app with ad inspector](//support.google.com/admob/answer/10159602).\n\n| **Warning:** Enabling ad inspector increases memory usage of the Google Mobile Ads SDK for test devices.\n\nThis guide covers how to perform the following:\n\n- [Launch ad inspector](/admob/android/ad-inspector/launch-ad-inspector)\n- [Verify adapter integrations](/admob/android/ad-inspector/verify-adapter-integrations)\n- [Test ad units](/admob/android/ad-inspector/test-ad-units)\n- [Troubleshoot ad units](/admob/android/ad-inspector/troubleshoot-ad-units)\n- [Troubleshoot privacy settings](/admob/android/ad-inspector/troubleshoot-privacy-settings)\n\nPrerequisites\n\nBefore you can use ad inspector, you must complete the following tasks:\n\n- Create an AdMob account. For more details, see [Sign up for AdMob](//support.google.com/admob/answer/7356219).\n- [Set up an app in AdMob](//support.google.com/admob/answer/9989980).\n- Complete the [Get started](/admob/android/quick-start) steps.\n- Install the Google Mobile Ads SDK version 20.0.0 or higher. To view the latest version, see [Release notes](/admob/android/rel-notes).\n- Add your device as a test device. To add a test device, see\n [Enable test devices](/admob/android/test-ads#enable_test_devices)\n\n | **Important:** Ad inspector launches only on *test devices*."]]