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
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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28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,["# Feed validation tool\n\nGoogle maintains an\n[open source feed validator](https://github.com/google/cap-library)\nthat provides specific feedback that you can act on beyond straightforward XML\nvalidation.\n\nTo validate your feed, go to the\n[CAP Validator](http://cap-validator.appspot.com/).\n| **Note:** The CAP feed validator is the most effective and efficient way to prepare your feeds for ingestion. We recommend that you run the validator on your feeds before you send them to Google."]]