What are crawlers?
A crawler is an automatic program that independently checks the content of websites on the World Wide Web, reads it and ultimately indexes it in search engines. Crawlers are also known as robots. They are also known as spiders, as automatic searching and indexing resembles a spider's web.
What does the crawler mean for SEO?
Robots are very important for SEO. As spiders usually reach different web pages via hyperlinks to already indexed websites, webmasters must include appropriate links in the website content. Otherwise, the crawler will not access the page as quickly and the page will not appear in the search results. Search engines have an algorithm that is relevant for indexing. According to the crawler result, the scanned website appears among the search results in the search engines.
If there were no crawlers, it would be impossible to locate and index the various contents on the vast Internet. Spiders or robots are therefore a core element. Only appropriately designed websites are read properly by the crawlers and their content is included in the search engines. SEO experts know what is important and bring the pages far to the front.