When performing domain name resolution for your website, have you set up a domain without the "www"? You should configure a domain without "www". This way, when users access your site using the domain without "www", they can still visit your website normally.
However, we often encounter situations where other websites link to your site using one of the following links:
* www.example.com
* example.com/
* www.example.om/index.html
* example.com/index.html
This results in the PR (PageRank) value of your main domain being分散ed across several URLs. This is because, from the perspective of search engines, URLs with "www" and without "www" are considered two different URLs. When both point to the same website, it confuses the search engine about which URL to choose as the primary one.