You may find various domain sources to find the expired domains. Before going for a new domain, you may also take an expired domain. It has got enormous benefits rather than new domains. You get all the backlinks. Benefits of various link building resources like directory submissions etc, since the links are always live after domain expired also. Many a times you also get traffic benefits of previous domain owners. Points to remember before booking the domain. Never choose a domian with banned IP. Always choose a domain with better PR, Alexa Rank and have backlinks. After booking domain you must complete following steps. Add the website to Google webmaster links and to other search engines as well. Try to remove all the bad links for that domain. Hope it will help you in getting a new better new domain next time.
There are enamorous resources available for expired domain checking. For an instant you may check the expiring domain and with its all backlinks at dropday.com. They provide all information regarding the domain i.e. what is its PR, Alexa, Dmoz listing etc.
Hy dear can you tell me what reasion site attak to the various and then site not working propely????????????????????????
As always, find out as much as you can before you buy a previously used domain name, you may inherit some backlines, but you may also unearth some links from previous black-hat seo campaigns
try to look at domain grabber marketplace or registrar expiring lists. There are even website offering free info for expiring domains like freshdrop