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.
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
-
Hidden H1 Tag on Image
Hi, In the page I'm working on, I encountered an tag in an image, rather than in a text form. Do you think it's an issue when it comes to SEO?
Technical SEO | | nerdieb
What do you suggest I should do if there is an issue? Keen to hear from you!0 -
I want to load my ecommerce site xml via CDN
Hello Experts. My ecommerce site - abcd.com
Technical SEO | | micey123
My ecommrece site sitemap abcd.com/sitemap.xml
My subdomain - xyz.abcd.com ( this is blank page but status is 200 which runs from cdn) My ecommerce site sitemap abcd.com/sitemap.xml contains only 1 link of subdomain sitemap- xyz.abcd.com/sitemap.xml
And this sitemap- xyz.abcd.com/sitemap.xml contains all category and product links of abcd.com So my query is :- Above configuration is okay? In search console I will add new property - xyz.abcd.com. and add sitemap xyz.abcd.com/sitemap.xml So Google will able to give errors for my website abcd.com Purpose - I want to run my xml sitemap from cdn that's why i have created subdomain like xyz.abcd.com Hope you understood my query. Thanks!0 -
Google Indexed a version of my site w/ MX record subdomain
We're doing a site audit and found "internal" links to a page in search console that appear to be from a subdomain of our site based on our MX record. We use Google Mail internally. The links ultimately redirect to our correct preferred subdomain "www", but I am concerned as to why this is happening and if it can have any negative SEO implications. Example of one of the links: Links aspmx3.googlemail.com.sullivansolarpower.com/about/solar-power-blog/daniel-sullivan/renewable-energy-and-electric-cars-are-not-political-footballs I did a site operator search, site:aspmx3.googlemail.com.sullivansolarpower.com on google and it returns several results.
Technical SEO | | SS.Digital0 -
Server Connection Error when using Google Speed Test Insight and GTMetrix
Hi Guys, Recently got into the issue when testing load speed of my website (https://solvid.co.uk). Occasionally, Google Speed Insights gives me a server connection error which states _"PageSpeed was unable to connect to the server. Ensure that you are using the correct protocol (_http vs https), the page loads in a browser, and is accessible on the public internet." Also, GTMetrix gives me an error as well, which states the following: "An error occurred fetching the page: HTTPS error: SSl connect attempt failed" All of my redirects seem to be set-up correctly as well as the SSL certificate. I've contacted my hosting provider (godaddy), they are saying that everything is fine with the server and the installation. Also, tried in different browsers in incognito mode, still gives me the same error. Until yesterday I haven't had such a problem. I've also attached the error screenshot links. I would really appreciate your help! Dmytro UxchPYR M52iPDf
Technical SEO | | solvid1 -
Images, CSS and Javascript on subdomain or external website
Hi guy's, I came across webshops that put images, CSS and Javascript on different websites or subdomains. Does this boost SEO results? On our Wordpress webshop all the sourcescodes are placed after our own domainname: www.ourdomainname.com/wp-includes/js/jquery/jquery.js?ver=1.11.3'
Technical SEO | | Happy-SEO
www.ourdomainname.com/wp-content/uploads/2015/09/example.jpg Examples of other website: Website 1:
https://www.zalando.nl/heren-home/ Sourcecode:
https://secure-i3.ztat.net//camp/03/d5/1a0168ac81f2ffb010803d108221.jpg
https://secure-media.ztat.net/media/cms/adproduct/ad-product.min.css?_=1447764579000 Website 2:
https://www.bol.com/nl/index.html Sourcecode:
https://s.s-bol.com/nl/static/css/main/webselfservice.1358897755.css
//s.s-bol.com/nl/upload/images/logos/bol-logo-500500.jpg Website 3:
http://www.wehkamp.nl/ Sourcecode:
https://static.wehkamp.nl/assets/styles/themes/wehkamp.color.min.css?v=f47bf1
http://assets.wehkamp.com/i/wehkamp/350-450-layer-SDD-wk51-v3.jpg0 -
CSS background image links bad for seo?
On one of the websites I manage SEO for, the developers are changing how our graphical links are coded. They're basically coding in such away where there is no anchor text and no alt tag, so for example: So there's no anchor nor alt context for Google's crawler. How badly will this affect SEO, or is it extremely minimal and I shouldn't worry about? Thanks in advance.
Technical SEO | | JimLynch0 -
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