Cache checker is a specialized tool which is used to find out whether your website is indexing by Google. It helps to understand what was the last time search bots had been visited your website. A cache is a type of temporary memory. It allows faster access to frequently used data without having to reload every time that data is accessed. Cachingis a background process, so users rarely notice it. Google's cache contains a snapshot or stored copy of a website that can be accessed by servers and clients.