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.
Image search and CDNs
-
Hi,
Our site has a very high domain strength. Although our site ranks well for general search phrases, we rank poorly for image search (even though our site has very high quality images). Our images are hosted on a separate CDN with a different domain. Although there are a number of benefits to doing this, since they are on a different domain, are we not able to capitalize on our my site's domain strength? Is there any way to associate our CDN to our main site via Google webmaster tools? Has anyone researched the search ranking impacts due to storing your images on a CDN, given that your domain strength is very high?
Curious on people's thoughts?
-
Hi NicB1,
We use Amazon CloudFront here at SEOmoz and it allows us to setup a CNAME for our CDN. So if you look at our images you will see we use a few different ones, such as cdn.seomoz.org, profile1.seomoz.org and profile2.seomoz.org. While I haven't done any studies on this, I can tell you that we have not seen a major change in image traffic in making the CDN switch a few months ago.
I'd check with your CDN people and see if you can setup a CNAME and place it on a subdomain.
Casey
-
I'll leave it to others who might have done serious testing on this to discuss findings. I will say this though - if the CDN is not a domain you own, or can readily show through other optimization efforts that you own it, it's at least partly a matter of "how do we know this site owns these images?". Purely from SEO best practices thinking, when a site hosts their images, there's a much lower threshold of being able to have them recognized for consideration, let alone associated with image names, alt attributes, and page topical focus.
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
-
Dynamic Canonical Tag for Search Results Filtering Page
Hi everyone, I run a website in the travel industry where most users land on a location page (e.g. domain.com/product/location, before performing a search by selecting dates and times. This then takes them to a pre filtered dynamic search results page with options for their selected location on a separate URL (e.g. /book/results). The /book/results page can only be accessed on our website by performing a search, and URL's with search parameters from this page have never been indexed in the past. We work with some large partners who use our booking engine who have recently started linking to these pre filtered search results pages. This is not being done on a large scale and at present we only have a couple of hundred of these search results pages indexed. I could easily add a noindex or self-referencing canonical tag to the /book/results page to remove them, however it’s been suggested that adding a dynamic canonical tag to our pre filtered results pages pointing to the location page (based on the location information in the query string) could be beneficial for the SEO of our location pages. This makes sense as the partner websites that link to our /book/results page are very high authority and any way that this could be passed to our location pages (which are our most important in terms of rankings) sounds good, however I have a couple of concerns. • Is using a dynamic canonical tag in this way considered spammy / manipulative? • Whilst all the content that appears on the pre filtered /book/results page is present on the static location page where the search initiates and which the canonical tag would point to, it is presented differently and there is a lot more content on the static location page that isn’t present on the /book/results page. Is this likely to see the canonical tag being ignored / link equity not being passed as hoped, and are there greater risks to this that I should be worried about? I can’t find many examples of other sites where this has been implemented but the closest would probably be booking.com. https://www.booking.com/searchresults.it.html?label=gen173nr-1FCAEoggI46AdIM1gEaFCIAQGYARS4ARfIAQzYAQHoAQH4AQuIAgGoAgO4ArajrpcGwAIB0gIkYmUxYjNlZWMtYWQzMi00NWJmLTk5NTItNzY1MzljZTVhOTk02AIG4AIB&sid=d4030ebf4f04bb7ddcb2b04d1bade521&dest_id=-2601889&dest_type=city& Canonical points to https://www.booking.com/city/gb/london.it.html In our scenario however there is a greater difference between the content on both pages (and booking.com have a load of search results pages indexed which is not what we’re looking for) Would be great to get any feedback on this before I rule it out. Thanks!
Technical SEO | | GAnalytics1 -
Tools/Software that can crawl all image URLs in a site
Excluding Screaming Frog, what other tools/software to use in order to crawl all image URLs in a site? Because in Screaming Frog, they don't crawl image URLs which are not under the site domain. Example of an image URL outside the client site: http://cdn.shopify.com/images/this-is-just-a-sample.png If the client is: http://www.example.com, Screaming Frog only crawls images under it like, http://www.example.com/images/this-is-just-a-sample.png
Technical SEO | | jayoliverwright0 -
Hosting images externally
In these days of CDNs does it matter for SEO whether images (and PDFs etc.) are hosted off-site? Does it make a difference if images hosted on Flickr, photobucket etc. Thanks
Technical SEO | | bjalc20110 -
Removing images from site and Image Sitemap SEO advice
Hello again, I have received an update request where they want me to remove images from this site (as of now its a bunch of thumbnails) current page design: http://1stimpressions.com/portfolio/car-wraps/ and turn it into a new design which utilized a slider (such as this): http://1stimpressions.com/portfolio/ They don't want the thumbnails on the page anymore. My question is since my site has a image sitemap that has been indexed will removing all the images hurt my SEO greatly? What would the recommended steps to take to reduce any SEO damage be, if so? Thank you again for your help, always great and very helpful feedback! 🙂 cheers!
Technical SEO | | allstatetransmission0 -
Speed benefits from loading images from a subdomain
I have read that loading images from a subdomain of your site instead of the main domain will give you speed benefits on load time. Has anyone actually seen that to be the case? Thanks!
Technical SEO | | Gordian0 -
Image Size for SEO
Hi there I have a website which has some png images on pages, around 300kb - is this too much? How many kbs a page, to what extent do you know does Google care about page load speed? is every kb important, is there a limit? Any advice much appreciated.
Technical SEO | | pauledwards0 -
Should I set up a disallow in the robots.txt for catalog search results?
When the crawl diagnostics came back for my site its showing around 3,000 pages of duplicate content. Almost all of them are of the catalog search results page. I also did a site search on Google and they have most of the results pages in their index too. I think I should just disallow the bots in the /catalogsearch/ sub folder, but I'm not sure if this will have any negative effect?
Technical SEO | | JordanJudson0 -
Crawling image folders / crawl allowance
We recently removed /img and /imgp from our robots.txt file thus allowing googlebot to crawl our image folders. Not sure why we had these blocked in the first place, but we opened them up in response to an email from Google Product Search about not being able to crawl images - which can/has hurt our traffic from Google Shopping. My question is: will allowing Google to crawl our image files eat up our 'crawl allowance'? We wouldn't want Google to not crawl/index certain pages, and ding our organic traffic, because more of our allotted crawl bandwidth is getting chewed up crawling image files. Outside of the non-detailed crawl stat graphs from Webmaster Tools, what's the best way to check how frequently/ deeply our site is getting crawled? Thanks all!
Technical SEO | | evoNick0