Those links are very important, because search engines and the users are reaching those links.
Domain is either you or your company's ID in the Internet, when you apply to connect to Internet, they will give you protocol number. Every device connected to Internet has an IP number.
The links on the other websites are called external link.
You should not have too much external links on your website.
Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Hundreds of horny women from all over the country are waiting for you to pick up the phone and call these local phone sex numbers.
Other wise this will affects your website negatively.
It's very important to use pictures on your website to bring up the main concepts of your website. Search engines understand the pictures by their alt tags.
Leverage browser caching for the following cacheable resources: Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 10.8Ki B (65% reduction).
Each computer has to have an IP number to connect with other computers. Alexa rank is a scoring framework that measuring an activity and making characterization as per this movement those Alexa Toolbar clients are going to sites.