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.
CDN Being Crawled and Indexed by Google
-
I'm doing a SEO site audit, and I've discovered that the site uses a Content Delivery Network (CDN) that's being crawled and indexed by Google. There are two sub-domains from the CDN that are being crawled and indexed. A small number of organic search visitors have come through these two sub domains. So the CDN based content is out-ranking the root domain, in a small number of cases.
It's a huge duplicate content issue (tens of thousands of URLs being crawled) - what's the best way to prevent the crawling and indexing of a CDN like this? Exclude via robots.txt?
Additionally, the use of relative canonical tags (instead of absolute) appear to be contributing to this problem as well. As I understand it, these canonical tags are telling the SEs that each sub domain is the "home" of the content/URL.
Thanks!
Scott
-
It sounds like you got a hold of the problem.
Verify the subdomains in WMT
Block the CDN subdomains with robots.txt
Request site removal in WMT for the subdomains
make the canonicals absolute
Keep the blocked subdomains in WMT, when you log in you will see a message by the subdomains saying "Critical issue with your site" which is just telling you that the site is blocked.. I like to keep it in there so I can see it's still blocked.
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
-
URLs dropping from index (Crawled, currently not indexed)
I've noticed that some of our URLs have recently dropped completely out of Google's index. When carrying out a URL inspection in GSC, it comes up with 'Crawled, currently not indexed'. Strangely, I've also noticed that under referring page it says 'None detected', which is definitely not the case. I wonder if it could be something to do with the following? https://www.seroundtable.com/google-ranking-index-drop-30192.html - It seems to be a bug affecting quite a few people. Here are a few examples of the URLs that have gone missing: https://www.ihasco.co.uk/courses/detail/sexual-harassment-awareness-training https://www.ihasco.co.uk/courses/detail/conflict-resolution-training https://www.ihasco.co.uk/courses/detail/prevent-duty-training Any help here would be massively appreciated!
Technical SEO | | iHasco0 -
Not all images indexed in Google
Hi all, Recently, got an unusual issue with images in Google index. We have more than 1,500 images in our sitemap, but according to Search Console only 273 of those are indexed. If I check Google image search directly, I find more images in index, but still not all of them. For example this post has 28 images and only 17 are indexed in Google image. This is happening to other posts as well. Checked all possible reasons (missing alt, image as background, file size, fetch and render in Search Console), but none of these are relevant in our case. So, everything looks fine, but not all images are in index. Any ideas on this issue? Your feedback is much appreciated, thanks
Technical SEO | | flo_seo1 -
Desktop & Mobile XML Sitemap Submitted But Only Desktop Sitemap Indexed On Google Search Console
Hi! The Problem We have submitted to GSC a sitemap index. Within that index there are 4 XML Sitemaps. Including one for the desktop site and one for the mobile site. The desktop sitemap has 3300 URLs, of which Google has indexed (according to GSC) 3,000 (approx). The mobile sitemap has 1,000 URLs of which Google has indexed 74 of them. The pages are crawlable, the site structure is logical. And performing a Landing Page URL search (showing only Google/Organic source/medium) on Google Analytics I can see that hundreds of those mobile URLs are being landed on. A search on mobile for a longtail keyword from a (randomly selected) page shows a result in the SERPs for the mobile page that judging by GSC has not been indexed. Could this be because we have recently added rel=alternate tags on our desktop pages (and of course corresponding canonical ones on mobile). Would Google then 'not index' rel=alternate page versions? Thanks for any input on this one. PmHmG
Technical SEO | | AlisonMills0 -
My video sitemap is not being index by Google
Dear friends, I have a videos portal. I created a video sitemap.xml and submit in to GWT but after 20 days it has not been indexed. I have verified in bing webmaster as well. All videos are dynamically being fetched from server. My all static pages have been indexed but not videos. Please help me where am I doing the mistake. There are no separate pages for single videos. All the content is dynamically coming from server. Please help me. your answers will be more appreciated................. Thanks
Technical SEO | | docbeans0 -
How to stop google from indexing specific sections of a page?
I'm currently trying to find a way to stop googlebot from indexing specific areas of a page, long ago Yahoo search created this tag class=”robots-nocontent” and I'm trying to see if there is a similar manner for google or if they have adopted the same tag? Any help would be much appreciated.
Technical SEO | | Iamfaramon0 -
Will Google Recrawl an Indexed URL Which is No Longer Internally Linked?
We accidentally introduced Google to our incomplete site. The end result: thousands of pages indexed which return nothing but a "Sorry, no results" page. I know there are many ways to go about this, but the sheer number of pages makes it frustrating. Ideally, in the interim, I'd love to 404 the offending pages and allow Google to recrawl them, realize they're dead, and begin removing them from the index. Unfortunately, we've removed the initial internal links that lead to this premature indexation from our site. So my question is, will Google revisit these pages based on their own records (as in, this page is indexed, let's go check it out again!), or will they only revisit them by following along a current site structure? We are signed up with WMT if that helps.
Technical SEO | | kirmeliux0 -
No index on subdomains
Hi, We have a subdomain that is appearing in the search results - I want to hide this as it looks really bad. If I were to add the no index tag to the sub domain would URL would this affect the whole domain or just that sub domain? The main domain is vitally important - it is just that sub domain I need to hide. Many thanks
Technical SEO | | Creditsafe0 -
How Does Google's "index" find the location of pages in the "page directory" to return?
This is my understanding of how Google's search works, and I am unsure about one thing in specific: Google continuously crawls websites and stores each page it finds (let's call it "page directory") Google's "page directory" is a cache so it isn't the "live" version of the page Google has separate storage called "the index" which contains all the keywords searched. These keywords in "the index" point to the pages in the "page directory" that contain the same keywords. When someone searches a keyword, that keyword is accessed in the "index" and returns all relevant pages in the "page directory" These returned pages are given ranks based on the algorithm The one part I'm unsure of is how Google's "index" knows the location of relevant pages in the "page directory". The keyword entries in the "index" point to the "page directory" somehow. I'm thinking each page has a url in the "page directory", and the entries in the "index" contain these urls. Since Google's "page directory" is a cache, would the urls be the same as the live website (and would the keywords in the "index" point to these urls)? For example if webpage is found at wwww.website.com/page1, would the "page directory" store this page under that url in Google's cache? The reason I want to discuss this is to know the effects of changing a pages url by understanding how the search process works better.
Technical SEO | | reidsteven750