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.
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!
-
Thanks for the helpful advice!
-
If you are talking about using a cookie-free subdomain, that can definitely have an impact on site speed:
http://developer.yahoo.com/performance/rules.html#cookie_free
Just using a subdomain won't have any benefit, and may even slow things down. Using a CDN for images and other components is usually the quickest and easiest solution for most sites.
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
-
Size of image for article Schema
Hi, I implemented schema markup for an article and all tested fine and I can see it being fired in preview mode of Google Tag Manager. But when I run the URL which has it applied through Google Structured Testing tool it is not appearing. I have now read that the image needs to be a certain size. For AMP articles this appears to be 12oo pixels wide http://www.thesempost.com/google-changes-image-size-requirements-amp-articles/ But what about non-AMP articles? Does it need to be that big too?
Technical SEO | | AL123al0 -
How google crawls images and which url shows as source?
Hi, I noticed that some websites host their images to a different url than the one their actually website is hosted but in the end google link to the one that the site is hosted. Here is an example: This is a page of a hotel in booking.com: http://www.booking.com/hotel/us/harrah-s-caesars-palace.en-gb.html When I try a search for this hotel in google images it shows up one of the images of the slideshow. When I click on the image on Google search, if I choose the Visit Page button it links to the url above but the actual image is located in a totally different url: http://r-ec.bstatic.com/images/hotel/840x460/135/13526198.jpg My question is can you host your images to one site but show it to another site and in the end google will lead to the second one?
Technical SEO | | Tz_Seo0 -
Is it important to include image files in your sitemap?
I run an ecommerce business that has over 4000 product pages which, as you can imagine, branches off into thousands of image files. Is it necessary to include those in my sitemap for faster indexing? Thanks for you help! -Reed
Technical SEO | | IceIcebaby0 -
ALT attribute keyword on the same image but different pages
Hi there, As i'm sure you're probably aware, moz advises to use a keyword within the ALT attribute on pages... On a new website I am launching, I have the ability to add an alt keyword to image headers. On multiple pages we have the exact same image but with different keywords associated them inside the alt attribute. The image itself is a collage of different images and so the keywords used can, quite sneakily, match the image. My question is therefore, will using different keywords on the same image on different pages have a negative effect on SEO? Thanks, Stuart
Technical SEO | | Stuart260 -
Can hotlinking images from multiple sites be bad for SEO?
Hi, There's a very similar question already being discussed here, but it deals with hotlinking from a single site that is owned by the same person. I'm interested whether hotlinking images from multiple sites can be bad for SEO. The issue is that one of our bloggers has been hotlinking all the images he uses, sometimes there are 3 or 4 images per blog from different domains. We know that hotlinking is frowned upon, but can it affect us in the SERPs? Thanks, James
Technical SEO | | OptiBacUK0 -
Microsite on subdomain vs. subdirectory
Based on this post from 2009, it's recommended in most situations to set up a microsite as a subdirectory as opposed to a subdomain. http://www.seomoz.org/blog/understanding-root-domains-subdomains-vs-subfolders-microsites. The primary argument seems to be that the search engines view the subdomain as a separate entity from the domain and therefore, the subdomain doesn't benefit from any of the trust rank, quality scores, etc. Rand made a comment that seemed like the subdomain could SOMETIMES inherit some of these factors, but didn't expound on those instances. What determines whether the search engine will view your subdomain hosted microsite as part of the main domain vs. a completely separate site? I read it has to do with the interlinking between the two.
Technical SEO | | ryanwats0 -
How to push down outdated images in Google image search
When you do a Google image search for one of my client's products, you see a lot of first-generation hardware (the product is now in its third generation). The client wants to know what they can do to push those images down so that current product images rise to the top. FYI: the client's own image files on their site aren't very well optimized with keywords. My thinking is to have the client optimize their own images and the ones they give to the media with relevant keywords in file names, alt text, etc. Eventually, this should help push down the outdated images is my thinking. Any other suggestions? Thanks so much.
Technical SEO | | jimmartin_zoho.com0 -
Starting a new product, should we use new domain or subdomain
I'm working with a company that has a high page rank on it's main domain and is looking to launch a new business / product offering. They are evaluating either creating a subdomain or launching a brand new domain. In either case, their current site will link contextually to the new site. Is there one method that would be better for SEO than the other? The new business / product is related to the main offering, but may appeal to different / new customers. The new business / product does need it's own homepage and will have a different conversion funnel than the existing business.
Technical SEO | | gallantc0