Once a domain expires, the registrar will allow around 30 days for the original owner to renew it. This period depends on the registrar and can range from 2 weeks to a whole year. Once this period is over, the domain enters the "Pending Delete" status, during which it cannot be renewed, purchased or modified in any way. Once the Pending delete status is over, the domain is dropped back into the available pool, and can now be purchased by anyone.
1. Some domain names don’t go to auction and are instead held by the registrar in their own portfolios (you called this “warehousing” by the registrar). This is probably less than 0.001% of the domain names….actually, probably even less. I suspect it would only be premium domain names with massive exact match local search quantities. Not surprisingly, I cannot find any information from registrars about their procedure, quantities of domains their keep, or ICANN’s rules (if any) about this.
Some people might want to skip that because they think that they've already been crawled, which is a possibility and you can apply a manual exclusion to any results you think are going to be returned on Google for your search query. So things like YouTube, you don't want to crawl, then you can add them in there and it will ignore them if they returned in the search results. Okay, so that's yeah! That's pretty much the search setting query settings here. So your search terms go here. You can have as many as you like just enter them in their line separated.
The second option requires a bit more time and effort than a 301 redirect. You could do a mini overhaul of the site and turn it into a microsite for your main domain. This option is good for exact-match domains for your targeted keyword, and there are other reasons for going the microsite route that Rand's highlighted in his post about root domains, subdomains, subfolders and microsites. This strategy also works better if the old domain has decent rankings for the keywords you're targeting.
Why does this matter? What's the big deal? Well, unfortunately, the vast majority of domains registered are eventually abandoned. For some reason or another, people just fail to re-register or renew their domain name and that domain name drops or becomes available to the public. Of course, the obvious reason is that these people simply did not make money off the website that they put up with that domain. Other bloggers and website owners simply don't have the time, so they just gave up on their online projects. Whatever the case may be, by simply registering these expired domains, you can resurrect the value they bring to the table. With the four situations that I outlined above, you can benefit from those situations by simply registering a drop domain.
Thousands of domain names expire every day. The reasons are different. Some owners forgot to renew the domains, some just don't want them anymore or they moved on to other projects. For most people these so called Expired Domains don't have any value. They just see a bunch of Domain Names someone else deleted and move on, but for the people who know about SEO or the value of good Backlinks, Expired Domain Names are money just waiting to get picked up from the street. The only problem is to separate the good ones from the bad ones. That is where ExpiredDomains.net comes into play.