Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Preventing CNAME Site Duplications
-
Hello fellow mozzers!
Let me see if I can explain this properly.
First, our server admin is out of contact at the moment,
so we are having to take this project on somewhat blind. (forgive the ignorance of terms).We have a client that needs a cname record setup, as they need a sales.DOMAIN.com to go to a different
provider of data. They have a "store" platform that is hosted elsewhere and they require a cname to be
sent to a custom subdomain they set up on their end.My question is, how do we prevent the cname from being indexed along with the main domain? If we
process a redirect for the subdomain, then the site will not be able to go out and grab the other providers
info and display it. Currently, if you type in the sales.DOMAIN.com it shows the main site's homepage.
That cannot be allow to take place as we all know, having more than one domain with
exact same content = very bad for seo. I'd rather not rely on Google to figure it out.Should we just have the cname host (where its pointing at) add a robots rule and have it set to not index
the cname? The store does not need to be indexed, as the items are changed almost daily.Lastly, is an A record required for this type of situation in any way?
Forgive my ignorance of subdomains, cname records and related terms. Our server admin being
unavailable is not helping this project move along any. Any advice on the best way to handle
this would be very helpful! -
It is pointing to the other server now. We have it blocked from indexing on that end, just wanted to make sure that was enough.
-
No,
it is because you are pointing sales to a different sever, it seems to me that you don't have your dns set up correctly. you don't want sales pointing to your main website. -
So does this work better because Google will not show an IP address in search results?
-
You need to point your cname to the ip of the server that hosts your sales.domain.com
don't
Do
sales.domain.com > 123.123.123.123
where 123.123.123.123 is the ip of the hosting webserver.
-
Hello David,
I think with the robots rule (there are many examples out there) should be more than enough in your case! take a look at this helpful article: http://moz.com/community/q/block-an-entire-subdomain-with-robots-txt
I hope that was helpful! Sorry about my English... I'm Spanish
Luis
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
What is the best strategy to SEO Discontinued Products on Ecommerce Sites?
RebelsMarket.com is a marketplace for alternative fashion. We have hundreds of sellers who have listed thousands of products. Over 90% of the items do not generate any sales; and about 40% of the products have been on the website for over 3+ years. We want to cleanup the catalog and remove all the old listings that older than 2years that do not generate any sales. What is the best practice for removing thousands of listings an Ecommerce site? do we 404 these products and show similar items? Your help and thoughts is much appreciated.
White Hat / Black Hat SEO | | JimJ3 -
Question regarding subdomains and duplicate content
Hey everyone, I have another question regarding duplicate content. We are planning on launching a new sector in our industry to satisfy a niche. Our main site works as a directory with listings with NAP. The new sector that we are launching will be taking all of the content on the main site and duplicating it on a subdomain for the new sector. We still want the subdomain to rank organically, but I'm having struggles between putting a rel=canonical back to main site, or doing a self-referencing canonical, but now I have duplicates. The other idea is to rewrite the content on each listing so that the menu items are still the same, but the listing description is different. Do you think this would be enough differentiating content that it won't be seen as a duplicate? Obviously make this to be part of the main site is the best option, but we can't do that unfortunately. Last question, what are the advantages or disadvantages of doing a subdomain?
White Hat / Black Hat SEO | | imjonny0 -
Should I submit a sitemap for a site with dynamic pages?
I have a coupon website (http://couponeasy.com)
White Hat / Black Hat SEO | | shopperlocal_DM
Being a coupon website, my content is always keeps changing (as new coupons are added and expired deals are removed) automatically. I wish to create a sitemap but I realised that there is not much point in creating a sitemap for all pages as they will be removed sooner or later and/or are canonical. I have about 8-9 pages which are static and hence I can include them in sitemap. Now the question is.... If I create the sitemap for these 9 pages and submit it to google webmaster, will the google crawlers stop indexing other pages? NOTE: I need to create the sitemap for getting expanded sitelinks. http://couponeasy.com/0 -
The use of a ghost site for SEO purposes
Hi Guys, Have just taken on a new client (.co.uk domain) and during our research have identified they also have a .com domain which is a replica of the existing site but all links lead to the .co.uk domain. As a result of this, the .com replica is pushing 5,000,000+ links to the .co.uk site. After speaking to the client, it appears they were approached by a company who said that they could get the .com site ranking for local search queries and then push all that traffic to .co.uk. From analytics we can see that very little referrer traffic is coming from the .com. It sounds remarkably dodgy to us - surely the duplicate site is an issue anyway for obvious reasons, these links could also be deemed as being created for SEO gain? Does anyone have any experience of this as a tactic? Thanks, Dan
White Hat / Black Hat SEO | | SEOBirmingham810 -
How would you optimize a new site?
Hi guys, im here to ask based on your personal opinion. We know in order to rank in SEO for a site is to make authority contents that interest people. But what would you do to increase your ranking of your site or maybe a blog post? leaving your link on blogs comment seem dangerous, nowadays. Is social media the only way to go? Trying to get people to write about you? what else can be done?
White Hat / Black Hat SEO | | andzon0 -
Suspicious external links to site have 302 redirects
Hi, I have been asked to look at a site where I suspect some questionable SEO work, particularly link building. The site does seem to be performing very poorly in Google since January 2014, although there are no messages in WMT. Using WMT, OPenSiteExplorer, Majestic & NetPeak, I have analysed inbound links and found a group of links which although are listed in WMT, etc appear to 302 redirect to a directory in China (therefore the actual linking domain is not visible). It looks like a crude type of link farm, but I cant understand why they would use 302s not 301s. The domains are not visible due to redirects. Should I request a disavow or ignore? The linking domains are listed below: http://www.basalts.cn/
White Hat / Black Hat SEO | | crescentdigital
http://www.chinamarbles.com.cn/
http://www.china-slate.com.cn/
http://www.granitecountertop.com.cn/
http://www.granite-exporter.com/
http://www.sandstones.biz/
http://www.stone-2.com/
http://www.stonebuild.cn/
http://www.stonecompany.com.cn/
http://www.stonecontact.cn/
http://www.stonecrate.com/
http://www.stonedesk.com/
http://www.stonedvd.com/
http://www.stonepark.cn/
http://www.stonetool.com.cn/
http://www.stonewebsite.com/ Thanks Steve0 -
Does having the same descrition for different products a bad thing the titles are all differnent but but they are the same product but with different designs on them does this count as duplicate content?
does having the same description for different products a bad thing the titles are all different but but they are the same product but with different designs on them does this count as duplicate content?
White Hat / Black Hat SEO | | Casefun1 -
Would linking out to a gambling/casino site, harm my site and the other sites it links out to?
I have been emailed asking if I sell links on one of my sites. The person wants to link out to slotsofvegas[dot]com or similar. Should I be concerned about linking out to this and does it reduce the link value to any of the other sites that the site links out to? Thanks, Mark
White Hat / Black Hat SEO | | Markus1111