Old expiring domains are much better like new registered. At first have some traffic, backlinks and some of them also PR (Page rank). Usually are indexed in major search engines, sometimes also listed in DMOZ, Yahoo directory and Google directory.
Expired domains are also much better for search engine optimalization, make this process much easier, because have trust and age history. Who thinking seriusly about make a SEO, buying expired domain name with traffic and inbound links.
Most popular auctions with expiring domains are at godaddy, namejet, snapnames. Search for expired domains name its very easy if you have domains list. With a bit luck, you can drop good one with PR5 cheaper like $200, just need to know which domain have not fake pr. List of domains are not free, but updated dailly with aprox. 50.000 new expiring domain names.
After bought expired name, you have it already registered. When you will buy at godaddy, then you have registered it with godaddy. If you will buy with namejet then you can have registered with several registars. Transfer of new renewal expiring name is same easy like each other domain.
Last record of sold expiring domain with pr9 been at godaddy, it was domain: ipodder.org, sold for $45,605 and it been absolutelly record price of this PR, but also name of domain been very good.
One time for several days you can catch domain with pr8, onnce per day you can find pr7 and few domains with pr6 expiring each day. Over 10 domains with pr5, over 30 with pr4 and hundreds with pr1 to pr3.
Good expired domain list include page rank value and also verify that is true or fake page rank.
If expiring domain are listed in major directory, then easy have traffic from them, also still received a bit page rank, especialy from DMOZ, where in some categorys high pr.
Dailly expiring about 1.000 domain which are listed in minimum one of above directory.
Many of expiring domains have traffic because expired names been used in past, often have backlinks from websites where good traffic and related content to domain name bring free traffic.
Here important thing, that expiring name have also keywords, possible for check in alexa.com website. We can use it for earn by adsense for example or use with search engine optimalization to build pressel pages, blog or directories.
Domains which have linking sites are always better, because at first bring traffic, increase page rank and also have better trust with search engines and offten a lot of search engine optimalization specialist interested in them.
Each day expiring about 10.000-20.000 domains with inbound links. You can easy check how many backlinks are indexed in Yahoo.
Here another important thing for SEO, age and history of domain. Old domain usually are listed in webarchive.org, then its very easy to recover content and design which have in past and continue target of keywords.
Old domains registered before 2000 have much higher trust PR like domain with 2 years age and also usually in them interested seo trades. Dailly aprox 50-100 domains expiring which been registered under 2000 year.
mozRank its another factor after page rank, which talking how trusted is domain, how trusted have backlinks.
Orginally mozRank been created by Seomoz.org and search engines not use it straight, but mozRank can tell you about domain trust in eyes of search engines.
MozRank its a digits between 0.00 and 9.99 and usually domains have this parametr bellow 4.00. Trusted domains have this parametr over 4.00, higher meaning - much better.
Domains with traffic always have keywords list, by this keywords usually comming organic traffic from search engines. Sometimes it can be really expensive keywords which we can use in google adwords and grow at it.
If fake PR, need to be listed this notice.
Date and time when domain was registered.
As minimum must be verified alexa ranking included, and also listed if there fake alexa rank.
Good algorythm can give answer of minimum visitors number per month, based on alexa data or google data.
If domain are listed in Yahoo directory, Google directory or Dmoz directory, it must be included in list.
Indexed in yahoo backlinks for each domain as minimum, google and bing not give true information about it. List can included also linking sites from alexa.
Very nice also to know, which name have links from .edu or .gov domains, how many difrent ip C class linking, how many ip linking at all ( how many domains)
Good list of expiring domains names must include this factor.
List of domain keywords also very usefully, especialy for people who want earning at google adsense program, so list also must include it for domains which have organic traffic.
Perfect if there will be include also, ranking of each keyword, keywords value and search popularity.
If domain are listed in webarchive.org then list must include number of archives of website and also can include how many years it been archived.
Expired domains usually are selling at auctions, so list must include provider of auction, link for auction, type of auction (Closeouts - Buy Now, Pre-Release ) and of course actual price.
Important thing, that at godaddy customers from European Union need also pay Vat tax, depending from country. Godaddy also add $0.18 icann fee and reneval price, so at the end price which look on $5 can be in reality $50.
So, before we will click "buy now" or "bid" its good to know which price we need to pay in reality - good list must include this price, especial for godaddy, that we don't drop hairs from head when godaddy will send us invoice.
Excellent list must have time to end in days,hours,minutes - its much better like listed time as 08:00 AM GMT or 06:00 PM PST, because not all people live in same time zone and counting it for many domains names can be so tired.
For live obtain that many informations - there are needed over hundreds servers, which cost a lot, it know everybody.
If we need to pay for service, that we want also working easy and quickly, in seconds can find any domain name use our criteria and see all details about it, which can help us make a decision about buy or not.
It for sure never will have include more like 30% of important factors about which wrote bellow. Will be harder to use and much more time needed to find excellent name in good price.

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