The links on the other websites are called external link.You should not have too much external links on your website.Those links are very important, because search engines and the users are reaching those links.You can create links by adding rel="nofollow" tag, which is not searched by search engines. You also should add nofollow tag to the links, you think it doesn't need it.It is imperative for our sites to record on indexes because web search tools empower registries and our site's recordings on catalog give its list rapidly.Dmoz is a website that is empowered from Google; in the event that we can spare our webpage to dmoz index, we can take file more quickly.
Other wise this will affects your website negatively.
It's crucial to use alt tag and to make sure search engines know what you are talking about.
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.
Directory, this implies that this sites will be exceptionally profit.
We can say that, recorded in DMOZ and Yahoo Directory will help expand of your rank in Google and other web search tools.