SEO Sitemap for Subdomain - seo

Basically i have a site call (e.g. domain.com), and i allow my customers to host their site on my domain (e.g. theirsite.domain.com)
I have a sitemap for domain.com, but have no linkage to theirsite.domain.com, as a result, these subdomain(s) cannot be found on google.
I have considered generating the site map dynimcally, but it wouldn't be ideal, as there might have 100,000 sites on my domain, causing huge resource consumption and slow generating time.
Is there any ideal way to let the search engine crawl my domain.com, as well as my customer sites (xx.domain.com)?

Use Google Webmasters Tools
Site Verification and Sitemap generation

Related

impact of expired domains on search engine ranking

I wanted to know if buying expired domains has positive impact on SEO or not.
I mean if someone buys an expired domain, and 301 redirect it to his main website, does this trick help ranking?
Thanks.
Buying expired domains and the redirecting them has been an SEO trick for years. Google are aware of it and do stamp it out.
If you think about it it's easy to spot. The sites are not related or the same sector etc.
You also need to ask why the domain expired. Were they link building and have various penalties on the site that they couldn't fix so let the domain drop?
If you buy a site that had issues before such as manual actions, link building etc and then 301 redirect that domain to yours, then those issues then get passed on to your site.
So for me this is very risky and will most likely add benefit to your site whatsoever.
#WilliamHarvey

SEO when subdomains point to the same site?

My subdomains are going to be city names:
miami.mysite.com
newyork.mysite.com
I don't know how most sites handle subdomains. My idea is simply to point them all to mysite.com and somehow get the subdomain name with PHP so that I echo the city posts and content with PHP.
Providing all subdomains have different Titles and Description. Will google index each subdomain as a different website?
Yes, Google will index each one as a separate site. However make sure you consider the pros and cons. Here's a good starting point: http://www.seomoz.org/blog/understanding-root-domains-subdomains-vs-subfolders-microsites
My opinion is go with subfolders (e.g. mysite.com/miami) instead of subdomains, mainly because consolidating inbound links to a single hostname will build more authority over time than if the same link juice is diluted among hundreds of subdomains. Also I think it would be hard to build enough unique content on each subdomain to support or justify having a separate site.

Is Addon domain affecting SEO

I am just a learn in the field of SEO and i have a main domain and an addon domains. Both have separate websites. Consider main.com is my main domain and addon.com is my addon domain name which is pointed to a sub directory called "addon".
I can access addon.com by using the following 3 ways.
addon.com
main.com/addon
addon.main.com
Are these urls are indexed separately by search engines? If so how can i prevent this?
Does Search engine think main.com/addon as a page in the main.com?
I am not sure i need to worry about all these things or just leave it as it is. I searched to google but couldn't find a right answer.
It may be too late to answer. However, it may benefit others.
Primarydomain and subdomain or addon-domain will not be linked by the search engines automatically, unless you link them purposefully or inadvertently. Except all conditions are true:
Your web root normally public_html has no index page
Directory indexing of your web root is opened, eventually
exposing/linking your sub-folder -which is attached to your
addon-domain- to google and entire world.
In that scenario robots.txt solution is not recommended, because search engines may ignore robot.txt rules.
Reference
Google will only index pages if they are linked to or listed in the sitemap. You can stop the addon.main.com or main.com/addon being indexed by using noindex tags:
<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">
or disallowing it in the robots.txt
The search engine will consider main.com/addon as a page of main.com - if sites are completely separate i'd recommend using a separate domain (preferably a keyword rich domain) but it's up to you really
We have three domain names with the same content. For the three domains, it will return a 200 OK HTTP code. It will look like duplicates of the same content. If there is a canonical tag on every page it will be better.
The best would be to create a redirection on the subdomain panel in cpanel so that at least addon.main.com would redirect to addon.com
Then, you can add a robots.txt to the root path of the primary domain and add
user-agent:*
disallow:/
so that no robot will visit main.com/addon
Google gives less weight to subdomain hosted site of another domain.
Superbad for SEO
If you are hosting for SEO and love the convenience of cPanel, then forget hosting domains as addon domains.
#Vasanthan R.P.
Its an excellent question, often overlooked by SEO professionals. +1 for you

Using DNS to Redirect Several Domains into One Single Content. Disaster?

When I searching our web site on Google I found three sites with the same content show up. I always thought we were using only one site www.foo.com, but it turn out we have www.foo.net and www.foo.info with the same content as www.foo.com.
I know it is extremely bad to have the same content under different URL. And it seems we have being using three domains for years and I have not seen punitive blunt so far. What is going on? Is Google using new policy like this blog advocate?http://www.seodenver.com/duplicate-content-over-multiple-domains-seo-issues/ Or is it OK using DNS redirect? What should I do? Thanks
If you are managing the websites via Google Webmaster Tools, it is possible to specify the "primary domain".
However, the world of search engines doesn't stop with Google, so your best bet is to send a 301 redirect to your primary domain. For example.
www.foo.net should 301 redirect to www.foo.com
www.foo.net/bar should 301 redirect to www.foo.com/bar
and so on.
This will ensure that www.foo.com gets the entire score, rather than (potentially) a third of the score that you might get for link-backs (internal and external).
Look into canonical links, as documented by Google.
If your site has identical or vastly
similar content that's accessible
through multiple URLs, this format
provides you with more control over
the URL returned in search results. It
also helps to make sure that
properties such as link popularity are
consolidated to your preferred
version.
They explicitly state it will work cross-domain.

SEO / Page Rank considerations for website redesigns

We have done many website redesigns before for companies looking to bring themselves into the 21st century. Most of them have low page rank when we are handed the project, so it is usually not a big concern of ours to maintain page rank.
However, we have recently obtained a client that is coming from a PHP-based architecture (we are a Microsoft .NET house), and one of the client's main concerns is the loss of their google page rank. Obviously the pages that have a high page rank have PHP extensions.
My questions are as follows:
Will a 301 redirect maintain page rank for each page, or is there something else we need to consider?
Since there are hundreds of pages, is there a nice "industry-standard" way of performing multiple 301 redirects? We are thinking of doing some URL rewriting of the PHP pages and performing the 301 redirect in the web form that we're redirecting to, but before we do this, we want to make sure there's not a better/cleaner way to do this.
Are there any other considerations we should take into account when dealing with a site of this magnitude with this amount of SEO success?
Any help, as always, is appreciated!
A 301 is the recommended way (straight from Google's Webmaster Tools documentation) of changing URL's for content. It is the "industry standard" and correct way of performing this task.
Your question is actually very similar to this one, so you could check there for some more relevant responses.
Look into the .Net Routing module. It would be a cleaner way to manage all those redirects in one go and in one spot.
You may have to set up IIS to send .php files to .Net
Yes, 301 redirects maintain the authority of a website or a page for SEO. (Most tests show that 90% or more of the old authority is passed).
One other related search engine optimization tip is to be sure that each page redirects / resolves only one time. i.e. not as a www & non-www or with a trailing / and without.
301
Redirect is Google Friendly and also Maintain Page Rank in Google. and second thing Web redesign is Best decision for Increase Page Rank and also Site Health.