Daily Tip
Understanding Which File Types Google Can Index
Google indexes a variety of text-based and encoded file types, ensuring your content is accessible across formats.
Google supports indexing a broad range of file types beyond standard HTML pages. This includes plain text files like CSV, XML, and source code files, as well as encoded document formats such as PDF, Microsoft Office files, and ePub. When Google crawls a file, it primarily relies on the Content-Type HTTP header to identify the file type, but it can also use the file extension or re-parse the file if the header is missing or incorrect. To ensure your content is indexable, serve files with the correct Content-Type header and use supported file formats. This approach helps Google accurately interpret and index your content, improving its visibility in search results. [Google]