Webmasters and content providers began optimizing websites for search engines in the mid-1990s, as the first search engines were cataloging the early Web. Initially, all webmasters only needed to submit the address of a page, or URL, to the various engines, which would send a web crawler to crawl that https://seoon-page49024.ziblogs.com/28313699/todo-acerca-de-compresión-de-pdf