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
-
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 -
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 -
Should I delete older posts on my site that are lower quality?
Hey guys! Thanks in advance for thinking through this with me. You're appreciated! I have 350 pieces of Cornerstone Content that has been a large focus of mine over the last couple years. They're incredibly important to my business. That said, less experienced me did what I thought was best by hiring a freelance writer to create extra content to interlink them and add relevancy to the overall site. Looking back through everything, I am starting to realize that this extra content, which now makes up 1/3 my site, is at about 65%-70% quality AND only gets a total of about 250 visitors per month combined -- for all 384 articles. Rather than spending the next 9 months and investing in a higher quality content creator to revamp them, I am seeing the next best option to remove them. From a pros perspective, do you guys think removing these 384 lower quality articles is my best option and focusing my efforts on a better UX, faster site, and continual upgrading of the 350 pieces of Cornerstone Content? I'm honestly at a point where I am ready to cut my losses, admit my mistakes, and swear to publish nothing but gold moving forward. I'd love to hear how you would approach this situation! Thanks 🙂
White Hat / Black Hat SEO | | ryj0 -
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 -
Do I lose link juice if I have a https site and someone links to me using http instead?
We have recently launched a https site which is getting some organic links some of which are using https and some are using http. Am I losing link juice on the ones linked using http even though I am redirecting or does Google view them the same way? As most people still use http naturally will it look strange to google if I contact anyone who has given us a link and ask them to change to https?
White Hat / Black Hat SEO | | Lisa-Devins0 -
Best URL structure for SEO for Malaysian/Singapore site on .com.au domain
Hi there I know ideally i need a .my or .sg domain, however i dont have time to do this in the interim so what would be the best way to host Malaysian content on a www.domainname.com.au website? www.domainname.com.au/en-MY
White Hat / Black Hat SEO | | IsaCleanse
www.domainname.com.au/MY
domainname.com.au/malaysia
malaysia.domainname.com.au
my.domainname.com.au Im assuming this cant make the .com.au site look spammy but thought I'd ask just to be safe? Thanks in advance! 🙂0 -
Site dropped suddenly. Is it due to htaccess?
I had a new site that was ranking on the first page for 5 keywords. My site was hacked recently and I went through a lot of trouble to restore it. Last night, I discovered that my site was nowhere to be found but when i searched site: mysite.com, it was still ranking which means it was not penalized. I discovered the issue to be a .htaccess and it have been resolved. My question is now that the .htaccess issue is resolved , will my site be restored back to the first page? Is there additional things that i should do? I have notified google by submitting my site
White Hat / Black Hat SEO | | semoney0