A website crawler, also known as a spider or robot, is a program that automatically navigates through the pages of a website and extracts information. It is commonly used by search engines to index the content of websites, but can also be used for other purposes such as monitoring website updates or analyzing website structure. The crawler follows links from one page to another and identifies new pages to add to its list of pages to be crawled
Google URL Inspection Tool is a feature in the Google Search Console that allows users to check the index status of a specific URL on their website. The tool provides information about the URL, such as whether it is indexed, the last crawl date, any crawl errors, and any security issues. Users can also use the tool to submit URLs for crawling, view the page's structured data, and preview how the page appears on Google search results. This tool is useful for website owners and SEOs to troubleshoot indexing issues and monitor the performance of their website in Google search results.
Google uses a process called "crawling" to discover and index new web pages. Crawling is done by automated programs called "spiders" or "bots" that follow links on web pages to discover new pages.
When a spider discovers a new page, it reads the page's content and adds it to Google's index, which is a database of all the pages on the web that Google has discovered. Google then uses complex algorithms to determine the relevance and importance of each page, and assigns a ranking to each page based on its relevance and importance.
There are a few things website owners can do to help their pages get indexed by Google:
It's important to note that there's no guarantee that all pages on a website will be indexed by Google, and that the time it takes for a page to be indexed can vary. Some pages may be indexed within hours or days, while others may take weeks or months.
Website crawlers, also known as spiders or bots, are automated programs that search engines like Google use to discover and index new web pages. These crawlers follow links on web pages to find new pages, and then they read the content of those pages to understand their content and context.
When a search engine's crawler discovers a new page, it first requests the page's HTML code from the server. It then reads the HTML code, looking for links to other pages on the site, as well as information about the page's content, such as its title, headings, and images.
The crawler then follows the links on the page to discover more pages, and repeats the process of requesting and reading the HTML code for each new page it finds. Along the way, it also records information about each page, such as the last time it was updated, how important the page is, and any other metadata that might be useful for understanding the page's content or context.
The information collected by the crawler is then passed along to the search engine's indexing system, where it is stored in a large database and used to generate search results.
It's important to note that website owners can use robots.txt file and meta tags to control how search engines crawl their sites. And also, the frequency and depth of crawling can vary depending on a site's popularity, the number of links pointing to it, and how frequently its content is updated.