i want a know about robots.txt file.
www.xyz.com/robots.txt
User-agent: *
Disallow:
like this my website robots.txt file. so my website pages are crawl or not in search engine ? or i remove this file form root file?
I want a crawl my website in all search engine so what i do?
What should you remember when using a robots.txt file?
The robots that are responsible for scanning for holes in Web pages can ignore the entries from the file. Automata that collect email addresses and other contact details behave similarly.
Remember that the contents of the file are publicly available, and the file "robots.txt" is not a method of securing access to resources.
Some robots may download websites too quickly to check them, which can significantly burden the server. In this case, it is recommended to block the user agent of such robots or their IP addresses.
Remember that Google will not download or index web content that has been blocked in the "robots.txt" file, but it can crawl these URLs if found on other websites on the Internet. Therefore, the URL of such a website and possibly other commonly available information, e.g. anchor texts, can be displayed in the search results.
The "robots.txt" file is only needed if the site contains content that you want to hide from search engines (e.g. Google). If search engines are to index the entire web page, the "robots.txt" file is completely redundant!