The perfect and quality inbound links are important to achieve high rankings on search engines. Inbound links are the most important factors for top rankings on major search engines. Its quite difficult for a website with less inbound links, to achieve top rankings for a highly competitive search term. Getting the right kind of quality inbound links is very important for a particular website. Its easy to get better rankings with 25-30 good inbound links than with 100 bad incoming links.

Some important factors that can make any link a good incoming link -

1. The inbound link should use any relevant keyword in the anchor text - if you wish to get high rankings for a particular search term then the links to your website should use the same search term. The anchor text used to link to your site influences the keywords or keyphrases for which the website will get high rankings.

2. The inbound link should come from a relevant website or a page - inbound links from relevant webpages are more useful than any other links from the unrelevant web pages. Although links from unrelated pages will not hurt the rankings of your website but search engines gives priority to the links coming from the most relevant websites.

3. The inbound link should direct to a relevant page on your site - to get links to your home page is better than to get links to the page that is most relevant to the chosen anchor text. If you are using a particular link text then the link should direct to a page relevant to the text. If the link text matches the content of the linked pages then it's more likely that your web page is really relevant to that term and you'll get high rankings for that search term.

4. Link from an authority site is also useful - Links from pages with high authority will increase the TrustRank of your website. Links from websites with high PageRank have a positive effect on the rankings of your own site.

5. There should not be a nofollow attribute in the inbound link - The nofollow attribute is used to tell the search engines not to follow a link. Links with the nofollow attribute can't help in achieving high search engine rankings. Check the HTML code of their link exchange partners to find out if they are using nofollow attribute to link to the website.

If the link building for the website is done on the basis of some simple factors, the website will definitely get the top rankings on major search engines.