Would your primary domain get delisted if sub-domain does?

Marketing Dynamics · Contributor Joined: 04 Mar 2006 Posts: 17

Would your primary domain get delisted if one of your sub-domain does?

Can I use a different IP address for the sub domain?

Should I use a different IP address for the sub domain names, if I am cross linking to my primary domain name?

Alice Seba · Posted: Tue Jun 13, 2006 4:29 am Post subject:

I don't use subdomains, so couldn't tell you. I'd think the whole domain would get delisted. I can't think of a way to have a subdomain on a different IP.

If you're worried, why not just buy multiple domains. They aren't expensive.

Alice
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thecashcow · Contributor Joined: 21 May 2006 Posts: 16

Many high traffic sites use different servers (with different IP addresses) for sub domains, it is fairly common practice. I know of a few sites that run their forum boards, main page content, videos, etc all on different servers within the same domain.

Here is one link I found for you quickly. It's worth doing some more searching to find exactly what you require as it does exist.

http://www.directadmin.com/forum/showthread.php?threadid=13436

Josh
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Alice Seba · Posted: Tue Jun 13, 2006 8:56 pm Post subject:

Thanks Josh. I'm no techy!

I'm guessing they don't use different servers/IPs for search engine protection purposes, but because of the large amount of resources that the subdomains use. Or Josh, do they do this for another purpose? Just curious.

If you're worried about search engines, in any way, I'd use a different domain.

Alice
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thecashcow · Contributor Joined: 21 May 2006 Posts: 16

Alice,

Exactly because of resource limitations from a processing, speed and bandwidth burst point of view.

Say you are running a forum board that links off your main web site and you get hundreds of thousands of visitors per day. These visitors going through your main site IP address which is putting more load on your overall site as well as putting load on your forum database with all the reading, writing, retrieval occuring with posts, views, etc. Your overall site and forum will slow down if it is sharing server processing power and bandwidth with the main page, video pages, etc given you are running a very traffic intensive web site.

You can either share the same DNS settings and have a structure as follows:
mainsite.com - 14.1.1.1 (made up IP addresses)
forum.mainsite.com - 14.1.1.2
videos.mainsite.com - 14.1.1.3
all pointing back to the main site, but running on their own servers with their IP addresses

Or in cases where there is the one domain say www.yahoo.com that receives a huge amount of traffic and no one server could handle there is a tonne of servers with different IP addresses and DNS supporting the one domain. If you go to the command prompt (type cmd in your start -> run menu) and type nslookup www.yahoo.com you'll find a few IP addresses returned for that domain. Where as, if you check your internet based moms site for example, there is one.

Not only from a resource point of view though. A lot of providers use multiple IP addresses and DNS settings to help in the process of sharing load to help in a security sense against DoS attacks, etc

Josh
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