Besides internal page factors including frequency and positioning of relevant keyword phrases, the leading search engines now suggest the importance of off the page factors, particularly links from other domains.
Google ranks individual URLs based on which other URLs link to them, which URLs link to those, and so on. Thus the steps you have to take are:
Choose the terms that you wish to include as the most productive search terms for your site, terms that you associate with the correct target visitors to your site. Put those in the search engines and find what pages rank near the top for them. These top-ranking sites/pages would be on the top of your list, if you needed to plant links to your site on other pages.
Once you have found the top ranked pages/sites for your chosen search term(s), you should check what sites or pages link to that site. If you get links from any of these sites to your target pages, you may be able to dramatically improve your ranking on Google and other crawler based Search Engines.
If a website has a lot of interlinked pages, then even an obscure page from that site could be a reasonably effective candidate for having a link to your site. It is not essential that the link should be on the home page or prominent page of a popular site.
Creating fake domains and letting those domains point to your site is a trick thought to be effective for improving page ranking at Google. However Google claims that this is not true and they are able to spot duplicate domains and domain scams.
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