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
-
Why is this site ranked #1 in Google with such a low DA (is DA not important anymore?)
Hi Guys, Would you mind helping me with the below please? I would like to get your view on it and why Google ranks a really new domain name #1 with super low domain authority? Or is Domain Authority useless now in Google? It seems like from the last update that John Mueller said that they do not use Domain Authority so is Moz Domain Authority tool not to take seriously or am I missing something? There is a new rehab in Thailand called https://thebeachrehab.com/ (Domain authority 13)It's ranked #1 in Google.co.th for these phrases: drug rehab thailand but also for addiction rehab thailand. So when checking the backlink profile it got merely 21 backlinks from really low DA sites (and some of those are really spammy or not related). Now there are lots of sites in this industry here which have a lot higher domain authority and have been around for years. The beach rehab is maybe only like 6 months old. Here are three domains which have been around for many years and have much higher DA and also more relevant content. These are just 3 samples of many others... <cite class="iUh30">https://www.thecabinchiangmai.com (Domain Authority 52)</cite>https://www.hope-rehab-center-thailand.com/ (Domain Authority 40)https://www.dararehab.com (Domain Authority 32) These three sites got lots of high DA backlinks (DA 90++) from strong media links like time.com, theguardian.com, telegraph.co.uk etc. (especially thecabinchiangmai.com) but the other 2 got lots of solid backlinks from really high DA sites. So when looking at the content, thebeachrehab.com has less content as well. Can anyone have a look and let me know your thoughts why Google picks a brand new site, with DA 13 and little content in the top compared to competition? I do not see the logic in this? Cheers
White Hat / Black Hat SEO | | igniterman75
John0 -
Moz was unable to crawl your site? Redirect Loop issue
Moz was unable to crawl your site on Jul 25, 2017. I am getting this message for my site: It says "unable to access your homepage due to a redirect loop. https://kuzyklaw.com/ Site is working fine and last crawled on 22nd July. I am not sure why this issue is coming. When I checked the website in Chrome extension it saysThe server has previously indicated this domain should always be accessed via HTTPS (HSTS Protocol). Chrome has cached this internally, and did not connect to any server for this redirect. Chrome reports this redirect as a "307 Internal Redirect" however this probably would have been a "301 Permanent redirect" originally. You can verify this by clearing your browser cache and visiting the original URL again. Not sure if this is actual issue, This is migrated on Https just 5 days ago so may be it will resolved automatically. Not sure, can anybody from Moz team help me with this?
White Hat / Black Hat SEO | | CustomCreatives0 -
Site Footer Links Used for Keyword Spam
I was on the phone with a proposed web relaunch firm for one of my clients listening to them talk about their deep SEO knowledge. I cannot believe that this wouldn’t be considered black-hat or at least very Spammy in which case a client could be in trouble. On this vendor’s site I notice that they stack the footer site map with about 50 links that are basically keywords they are trying to rank for. But here’s the kicker shown by way of example from one of the themes in the footer: 9 footer links:
White Hat / Black Hat SEO | | RosemaryB
Top PR Firms
Best PR Firms
Leading PR Firms
CyberSecurity PR Firms
Cyber Security PR Firms
Technology PR Firms
PR Firm
Government PR Firms
Public Sector PR Firms Each link goes to a unique URL that is basically a knock-off of the homepage with a few words or at the most one sentences swapped out to include this footer link keyword phrase, sometimes there is a different title attribute but generally they are a close match to each other. The canonical for each page links back to itself. I simply can’t believe Google doesn’t consider this Spammy. Interested in your view.
Rosemary0 -
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 -
A site is using their competitors names in their Meta Keywords and Descriptions
I can't imagine this is a White Hat SEO technique, but they don't seem to be punished for it by Google - yet. How does Google treat the use of your competitors names in your meta keywords/descriptions? Is it a good idea?
White Hat / Black Hat SEO | | PeterConnor0 -
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