Amazon CloudFront CDN
-
Hi,
I'd like to increase website's speed with Amazon CloudFront CDN.
I created some CNAMEs and i've something like this:
- www.mydomain.com (my website)
- cdn1.mydomain.com
- cdn2..mydomain.com
- cdn3.mydomain.com
But i've a lot duplicate content now ! One per subdomain and one per content (gif, css, html, and so one).
Have you any feedback in order to not have SEO penalty ?
Does Google detects CDN ? Can I help him to understand my CDNs ?
Thanks,
Best regards,
Maxime
-
Hi Max,
As you know, SEOmoz uses a CDN (Content Delivery Network) to host our static content. This greatly improves the load time of our pages by distributing our content across a cloud network, and results in an improved experience for users.
If I understand your question correctly, you have set up a CDN and have created duplicate content issues.
To solve this, it's important to set up your CDN only to serve static content, like images, stylesheets and javascript. That is what a CDN is designed for. Do not duplicate your entire site - your HTML - as this will cause duplicate content issues.
If for some reason you need to replicate your entire HTML, then there are some steps you can take to mitigate the damage, although it's going to depend on your exact circumstances.
For example, you can set full URL canonical tags so that all your mapped CNAMES point to your primary URL.
To revert back to one copy of your HTML, you might want to put 301 redirects in place on the duplicated content (pointing to the original) before removing them from the CDN.
But even these aren't ideal solutions. It's best just to serve your static content, and only one version of your HTML.
-
I think he didn't reply.
He store data onto Amazon S3 and serves pictures from CDN (Amazon CloudFront). So he told me he hasn't duplicate content issues because he serves pictures.
But he tolds too "This isn't an issue for duplicate content, unlike if you were replicating your HTML".
When you use Amazon CloudFront without Amazon S3, but you use it with your webserver, Amazon CloudFront duplicates all content (pictures, pages, ...).
Onto your website, you'll only link pictures to CDN, for example http://cdn1.test.com/picture.jpg. But if GoogleBot opens http://cdn1.test.com/ it'll find all your html content !
So it'll be a duplicate issue I think, and I don't really know what is the best way to fix that (not use Amazon CloudFront without Amazon S3, Canonical, http headers, ...)
Thanks
-
Did the author's reply in the comment of the blog post answer your question, or do you still have this question?
-
Great post, but he didn't talk about duplicate content, only increasing speed.
-
Here's the YouMoz post that might help.
http://www.seomoz.org/ugc/improving-page-speed-with-amazon-web-services-a-beginners-guide
-
Tomorrow morning (Seattle time) I'll be posting a YouMoz blog post at http://www.seomoz.org/ugc that deals directly with setting up a CDN on Amazon. You can read through the steps given in the article and see if that answers your questions, and if not, you can ask a question in the comments.
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
-
If my website uses CDN does thousands of 301 redirect can harm the website performance?
Hi, If my website uses CDN does thousands of 301 redirect can harm the website performance? Thanks Roy
Intermediate & Advanced SEO | | kadut1 -
Good CDN
Dose anyone know of a good CDN? Free if poss!! It is for use on a joomla v2.5 site Thanks Richard
Intermediate & Advanced SEO | | seoman101 -
We used to speak of too many links from same C block as bad, have CDN's like CloudFlare made that concept irrelevant?
Over lunch with our head of development, we were discussing the way CloudFlare and other CDN's help prevent DDOS attacks, etc. and I began to wonder about the IP address vs. the reverse proxy IP address. Before we would look to see commonalities in the IP as a way that search engines would modify the value to given links and most link software showed this. For ahrefs, I know they still show common IPs using the C block as the reference point. I began to get curious about what was the real IP when our head of dev said, that is the IP from CloudFlare... So, I ran a site in ahrefs and we got an older site we had developed years ago that showed up as follows: Actos-lawsuit.org 104.28.13.57 and again as 104.28.12.57 (duplicate C block is first three sets of numbers are the same and obviously, this has a .12 and a .13 so not duplicate.) Then we looked at our host to see what was the IP shown there: 104.239.226.120. So, this really begs a question of is C Block data or even IP address data still relevant with regard to links? What do the search engines see when they look for IP address now? Yes, I have an opinion, but would love to hear yours first!
Intermediate & Advanced SEO | | RobertFisher0 -
CDN for SEO (or not)?
Does CDN impact on SEO or not? There seems conflicting ideas as to whether they impact positively or negatively, I realise that if the page loads quicker this is a good thing for SEO and usability of course. Does Google see CDN as just cheating and a get-around for not doing the work from the ground up and using good hosting etc? Do you have any direct experience? All constructive input much appreciated!
Intermediate & Advanced SEO | | seoman101 -
Is CDN Good For International Website?
Hello - Which solution is better For International Website: 1) using a CDN, or 2) using some VPS's in each location?
Intermediate & Advanced SEO | | Vahid-af0 -
Ecommerce question - Should I use a CDN for my images. ?
Hi , We are currently in the process of re-developing out commerce website and I wondering should we use a CDN (content delivery nertwork) for our product images. My category pages are currently showing approx 21 product images per page and the page speed is okay but can be better but the page size is rather large ... anything between 600kb - 1 Meg. We do optimise the images already in photoshop. We also do things like minify etc to get the pages to load as fast as possible but I think the only thing left is using a CDN but I have heard mixed reports about using this.? We are also doing a mobile responsive version of the site to but I know that speed will be king with google and how it reflects on rankings. Whilst I can see a CDN will improve image page load speed etc, I guess there a negative SEO impact as well as images will be stored in the cloud ?.. as opposed on to on my site/database. Does anyone know how best to implement a CDN without impacting on SEO or know of any good SEO /implementation articles on this ?... Maybe do Ieave some images on my category pages so I can still do the alt image tags etc/ and have the remaining images on the CDN.? Many Thanks Sarah
Intermediate & Advanced SEO | | SarahCollins0 -
Ever had a case where publication of products & descriptions in ebay or amazon caused Panda penalty?
One of our shops got a Panda penalty back in september. We sell all our items with same product name and same product description also on amazon.com , amazon.co.uk, ebay.com and ebay.co.uk. Did you ever have a case where such multichannel sales caused panda penalty?
Intermediate & Advanced SEO | | lcourse0 -
Mystery: Ranking in Amazon for a product page?
My client has a product on Amazon that has more reviews and better rankings. However, their competitor with less reviews and lower ratings are ranking #1 for our primary keyword in Google. Our product page doesn't even rank on Google, but I'm assuming Google doesn't want to display two results from Amazon. The only difference is they have 1 link pointed to the product page that has a small PA of 10 and DA of 15. Do you think this link could be the only thing making a difference? Should we start building more links to this product page in addition to their website? Any other tips to help our Amazon page rank?
Intermediate & Advanced SEO | | Stryde0