Google maintains an open source feed validator that provides specific feedback that you can act on beyond straightforward XML validation.
To validate your feed, go to the CAP Validator.
Feed validation tool
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-28 UTC.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eGoogle offers an open source CAP feed validator to help publishers improve their feeds.\u003c/p\u003e\n"],["\u003cp\u003ePublishers should use the validator, accessible at \u003ca href=\"http://cap-validator.appspot.com/\"\u003ehttp://cap-validator.appspot.com/\u003c/a\u003e, before submitting feeds to Google for the best results.\u003c/p\u003e\n"],["\u003cp\u003eThe validator provides detailed feedback beyond basic XML validation to ensure feed quality and successful ingestion.\u003c/p\u003e\n"]]],["Google offers an open-source feed validator for detailed feedback beyond XML validation. Users can access the validator via the provided link. The tool, recommended as the most effective way to prepare feeds for Google, should be used to validate feeds before they are submitted to Google. This ensures the feeds are ready for ingestion.\n"],null,[]]