# Visual Change Monitoring ### What is the purpose of visual change monitoring? You've only got one chance to make a good first impression with your website. If something is broken, does not load or is not loading in the correct place, it can give a very bad impression and is not ideal. Now, imagine that the website content doesn't load at all due to a plugin error or when it loads there are adverts to gambling sites or adult content. Uptime monitoring simply says whether or not the website is loading. It does not tell you if something fundamentally wrong is displayed when the website loads. ### How does it function? When your website is added to a visual change monitor, a snapshot is taken on the top-section of your Home page. Then, periodically the website is checked against that snapshot to look for any changes. The package you choose determines how often the website is checked. At the top level, your website is checked every 24 hours. When the expected snapshot is overlaid onto the current snapshot, any differences trigger an alert. Such alerting can spot any of the following: * Fundamental changes to the content due to a hack or malicious changes * Images or text not loading * Error messages being presented due to software/plugin issues * CSS stylesheets not working --- # 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://upwatch.gitbook.io/upwatch/readme/visual-change-monitoring.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.