# Cache Invalidation Cache invalidation is a function that helps you to remove image from the CDN. You can delete images using either * URL of the original image * Path to the image that starts with the [Image Source](/setup/source-images/http.md) alias ![](/files/mWGz1TF23IV5VUXWAjGU) ## Limitations Invalidation is intended for use in exceptional circumstances, not as part of your normal workflow. Invalidations don't affect cached copies in web browser caches or caches operated by third-party internet service providers. Invalidations are rate-limited. You can submit at most one invalidation per minute. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.pixboost.com/setup/cache-invalidation.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.