I’m working for a simple bot for a project, and I noticed, that a lot of sites do not have sitemaps in their robot.txt files. There is of course an option to simply index the sites in question and crawl all possible pages, but that often takes much more time than simply downloading sitemap.
What is the best way to detect sitemap if it is not mentioned in robots.txt?
Normally it should be placed in the root directory of a domain like xydomain.xyz/sitemap.xml .
I would only add the site map into the robots file, if it is placed elsewhere. If a site uses more than one site map located on another place, it should be noted in an index map.