I have a question in my mind, so i wanted to ask here. Suppose that if a domain has 4 PR, and a person do not renew it and get expired. will it's PR be finished. what happen if another person register that domain after 7 days of it's expiration. Thanks in advance.
:laugh: Well you definitely cannot expect the PR to be maintained despite a domain being inaccessible. Its like expecting 100 % marks in Maths everytime just because you had secure it at sometime in the past (No offense mean't). Let me try and explain you a simple logic. It basically lies in the concept of how a PR of a site is decided. When you build backlinks some amount of link juice is passed over to your site, so more the number of quality backlinks, the more is the probability for getting a higher PR. But incase your site goes down for some reason, there is no point in the backlinks that you had built for various pages of the site. Hence the PR is bound to take the hit. However, a period of 7 days shouldn't harm your sites PR in anyways.
It could work for you. Just take in note that you should check the age of the domain and the contents that it had before. If you change the topic completly you will burn almost every PR and trust of the domain. If you start with the same contents (their are even SEOs which copy and paste the old content with wayback.archive.org for example, but that could be cause in copyright problems and is quite blackheat) or a topic very similiar you shouldnt have problem with loosing trust or PR. And after a cuple of weeks when you get back more and more trust from google you can begin slowly to change the topics or to concentrate in something more.
You cannot expect it to maintain its rank 4 if it's expired. Chances on going back to that rank would be possible if you work on it!
Actually PR is something that associates with the URL not the domain itself. For example compare the PRs of the following URLs Where to get cheapest COM domain name Hosting Discussion - Powered by vBulletin If you change the URL you might loose the PR. For example, if you have a PR of 5 for mysite.com/buy.html and if you change the file name of it to buystuff.html the resulting URL (mysite.com/buystuff.html) might have PR of 0. Because the number of inbound links to mysite.com/buystuff.html is zero. __________________
7 days of expiration should not affect it PR, but you have to work very hard to build more backlinks to keep the rank. Google may re-calculate the PR if the backlinks reduce significantly The best way is to buy the domain name as well as the content (pages) of the site. You can chagne the ocntent but the structure and the names of the pages should be the same.
PR of any domain keep changing as per the seo done for it. if a domain expires it can remain at the same page rank.