Skip to content
    Moz logo Menu open Menu close
    • Products
      • Moz Pro
      • Moz Pro Home
      • Moz Local
      • Moz Local Home
      • STAT
      • Moz API
      • Moz API Home
      • Compare SEO Products
      • Moz Data
    • Free SEO Tools
      • Domain Analysis
      • Keyword Explorer
      • Link Explorer
      • Competitive Research
      • MozBar
      • More Free SEO Tools
    • Learn SEO
      • Beginner's Guide to SEO
      • SEO Learning Center
      • Moz Academy
      • MozCon
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Digital Marketers
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • The Moz Story
      • New Releases
    • Log in
    • Log out
    • Products
      • Moz Pro

        Your all-in-one suite of SEO essentials.

      • Moz Local

        Raise your local SEO visibility with complete local SEO management.

      • STAT

        SERP tracking and analytics for enterprise SEO experts.

      • Moz API

        Power your SEO with our index of over 44 trillion links.

      • Compare SEO Products

        See which Moz SEO solution best meets your business needs.

      • Moz Data

        Power your SEO strategy & AI models with custom data solutions.

      Let your business shine with Listings AI
      Moz Local

      Let your business shine with Listings AI

      Learn more
    • Free SEO Tools
      • Domain Analysis

        Get top competitive SEO metrics like DA, top pages and more.

      • Keyword Explorer

        Find traffic-driving keywords with our 1.25 billion+ keyword index.

      • Link Explorer

        Explore over 40 trillion links for powerful backlink data.

      • Competitive Research

        Uncover valuable insights on your organic search competitors.

      • MozBar

        See top SEO metrics for free as you browse the web.

      • More Free SEO Tools

        Explore all the free SEO tools Moz has to offer.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Learn SEO
      • Beginner's Guide to SEO

        The #1 most popular introduction to SEO, trusted by millions.

      • SEO Learning Center

        Broaden your knowledge with SEO resources for all skill levels.

      • On-Demand Webinars

        Learn modern SEO best practices from industry experts.

      • How-To Guides

        Step-by-step guides to search success from the authority on SEO.

      • Moz Academy

        Upskill and get certified with on-demand courses & certifications.

      • MozCon

        Save on Early Bird tickets and join us in London or New York City

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • Digital Marketers

        Simplify SEO tasks to save time and grow your traffic.

      • Small Business Solutions

        Uncover insights to make smarter marketing decisions in less time.

      • Agency Solutions

        Earn & keep valuable clients with unparalleled data & insights.

      • Enterprise Solutions

        Gain a competitive edge in the ever-changing world of search.

      • The Moz Story

        Moz was the first & remains the most trusted SEO company.

      • New Releases

        Get the scoop on the latest and greatest from Moz.

      Surface actionable competitive intel
      New Feature

      Surface actionable competitive intel

      Learn More
    • Log in
      • Moz Pro
      • Moz Local
      • Moz Local Dashboard
      • Moz API
      • Moz API Dashboard
      • Moz Academy
    • Avatar
      • Moz Home
      • Notifications
      • Account & Billing
      • Manage Users
      • Community Profile
      • My Q&A
      • My Videos
      • Log Out

    The Moz Q&A Forum

    • Forum
    • Questions
    • Users
    • Ask the Community

    Welcome to the Q&A Forum

    Browse the forum for helpful insights and fresh discussions about all things SEO.

    1. Home
    2. SEO Tactics
    3. Intermediate & Advanced SEO
    4. Sitespeed: Do images require width and height attributes?

    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.

    Sitespeed: Do images require width and height attributes?

    Intermediate & Advanced SEO
    3
    7
    2482
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • cyberlicious
      cyberlicious last edited by

      Currently working on a sitespeed issue, and was wondering if not having width and height for images actually do cause a problem.  We simply Photoshop the resolution we require for the image and add it to the page as is.  I though this would actually speed it up, but I am getting from www.gtmetrix.com that we should have them.

      What's your experience?  Thanks!

      1 Reply Last reply Reply Quote 0
      • ThompsonPaul
        ThompsonPaul @cyberlicious last edited by

        Just came across a terrific resource that reminded me you'd asked about further reading, Ben.

        Check out BrowserDiet for a huge collection of resources about tuning front-end performance of websites. (You'll see #6 talks about exactly your original question)

        I can also recommend reading Steve Souder's two books - High Performance Websites and Even Faster Websites - both from O'Reilly. Souders is pretty much the leading specialist in this area. He's the creator of YSlow, one of the primary tools for measuring/analyzing site speed, and is now Head Performance Engineer at Google. His website is SteveSouders.com

        That'll be more than enough to get you started. Lemme know if you're still hungry for more!

        Paul

        P.S. The report details from tests at webpagetest.org can also teach you a huge amount, and there's a forum there run by Patrick Meenan (who built webpagetest) which is just excellent. Patrick frequently answers questions personally.

        1 Reply Last reply Reply Quote 1
        • mememax
          mememax @cyberlicious last edited by

          you're welcome, hope your site will be speeding up a lot!!!

          1 Reply Last reply Reply Quote 0
          • cyberlicious
            cyberlicious @mememax last edited by

            Yes, thank you.  We size them all to what we want on the site so we are good there.  Just got done doing it, and it did make a difference.  Thanks guys!

            mememax 1 Reply Last reply Reply Quote 0
            • mememax
              mememax @ThompsonPaul last edited by

              as Paul correctly said, if your purpose is to improve the page speed just be sure that you're not resizing the images with css/html but that you're uploading the images in that dimensions.

              An image of 10241024 resized to 100100 still weights as an 1024 image so my recommendation is to resize all those images to the desired dimensions, moreover if you can use an external cdn you'll save bandwith and have those images loading outside your website. That will help reducing the loadtime of the page.

              cyberlicious 1 Reply Last reply Reply Quote 1
              • cyberlicious
                cyberlicious @ThompsonPaul last edited by

                Perfect-O!  I completely get it now.  Thanks Paul.  You da man!

                I thought it would be faster as in my mind it was more to read, but now that I understand the loading, I get it.  Guess I need to start researching how a website loads.  Have any resources I can read, to up my experience with this?

                I've been in development but on an application side not website side.

                ThompsonPaul 1 Reply Last reply Reply Quote 0
                • ThompsonPaul
                  ThompsonPaul last edited by

                  The main reason PageSpeed and YSlow recommend including width and height for images is as much the perception of page speed as the actual load time, Ben.

                  When you include the image dimensions, the browser can draw out the "containers" that will hold the images, reserving the space for them while they download. The browser can then go on the paint the rest of the pages CSS and objects around those "containers" without having to go back and redraw the whole page once the images have downloaded and their sizes are then known.

                  This gives the user the illusion of a much faster, cleaner page load, and hence the impression of a faster website.

                  Does that make sense?

                  Paul

                  [Edited to add: You should still keep doing what you're doing to produce "size-as" images for your pages. You don't want to be resizing images with the html dimensions, just reporting in html the actual size of the image]

                  cyberlicious mememax 2 Replies Last reply Reply Quote 4
                  • 1 / 1
                  • First post
                    Last post

                  Got a burning SEO question?

                  Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


                  Start my free trial


                  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.

                  • See all categories

                  Related Questions

                  • Julien.Ferras

                    Google doesn't index image slideshow

                    Hi, My articles are indexed and images (full size) via a meta in the body also. But, the images in the slideshow are not indexed, have you any idea? A problem with the JS Example : http://www.parismatch.com/People/Television/Sport-a-la-tele-les-femmes-a-l-abordage-962989 Thank you in advance Julien

                    Intermediate & Advanced SEO | | Julien.Ferras
                    0
                  • ChrisKing

                    Href lang in image or video XML sitemaps

                    Does anyone know if it is possible/recommended/not recommended to use href lang in image or video XML sitemaps? This had not crossed my mind until recently, but a client asked me this question and I couldn't find any information on this topic.

                    Intermediate & Advanced SEO | | ChrisKing
                    0
                  • bidilover

                    Any tips on how tp get reddit or pinterest posts rank high on google images?

                    Hello I have noticed that for a keyword that has high competition it has on top image searches not that popular pinterest post & a reddit post, explorergram , youtube etc., the keywork is "24k gold iphone" and I am wondering if I could create somehow myself a pinterest or reddit post or something similar that would have images with my product rank high on that keyword, since my website does not rank well in mage search for some reason... https://www.google.fi/search?q=24k+gold+iphone+6&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVChMI1f2LkpTxxgIVhI8sCh1SGwjy&biw=978&bih=550#tbm=isch&q=24k+gold+iphone thanks  a lot

                    Intermediate & Advanced SEO | | bidilover
                    0
                  • teconsite

                    Images with a token in the url, in Drupal. How does it affect to SEO?

                    Hi everyone! I am checking now a website that works with Drupal, and I found that images have urls like this... http://www.brandname.com/sites/default/files/styles/directory_xyz/public/name-of-the-picture.png?itok=T89RpzrK I was wondering how an URL like that with the token at the and, can affect to SEO. I cound't find anything. Anyone knows? Thank you!

                    Intermediate & Advanced SEO | | teconsite
                    0
                  • friendoffood

                    Alt tag for src='blank.gif' on lazy load images

                    I didn't find an answer on a search on this, so maybe someone here has faced this before. I am loading 20 images that are in the viewport and a bit below.  The next 80 images I want to 'lazy-load'.  They therefore are seen by the bot as a blank.gif file.  However, I would like to get some credit for them by giving a description in the alt tag.  Is that a no-no?  If not, do they all have to be the same alt description since the src name is the same?  I don't want to mess things up with Google by being too aggressive, but at the same time those are valid images once they are lazy loaded, so would like to get some credit for them. Thanks!  Ted

                    Intermediate & Advanced SEO | | friendoffood
                    0
                  • fablau

                    Number of images on Google?

                    Hello here, In the past I was able to find out pretty easily how many images from my website are indexed by Google and inside the Google image search index. But as today looks like Google is not giving you any numbers, it just lists the indexed images. I use the advanced image search, by defining my domain name for the "site or domain" field: http://www.google.com/advanced_image_search and then Google returns all the images coming from my website. Is there any way to know the actual number of images indexed? Any ideas are very welcome! Thank you in advance.

                    Intermediate & Advanced SEO | | fablau
                    1
                  • steviephil

                    Best way to noindex an image?

                    Hi all, A client wanted a few pages noindexed, which was no problem using the meta robots noindex tag. However they now want associated images removed, some of which still appear on pages that they still want indexed. I added the images to their robots.txt file a few weeks ago (probably over a month ago actually) but they're all still showing when you do an image search. What's the best way to noindex them for good, and how do I go about implementing it? Many thanks, Steve

                    Intermediate & Advanced SEO | | steviephil
                    0
                  • lbohen

                    How to See Image Metadata?

                    We sell 1000s of audiobooks and get our cover images and descriptions from the publisher’s sites. When I download a cover image such as this one (http://www.audiobooksonline.com/media/Alex-Cross-Run-James-Patterson.jpg)
                    I always rename and re-size it before installing at our Web store. Would this process result in any publisher’s metadata in the image we use at our Web store and/or anything else Google would not like?
                    Is there an online utility that would allow me to see metadata in our images?

                    Intermediate & Advanced SEO | | lbohen
                    0

                  Get started with Moz Pro!

                  Unlock the power of advanced SEO tools and data-driven insights.

                  Start my free trial
                  Products
                  • Moz Pro
                  • Moz Local
                  • Moz API
                  • Moz Data
                  • STAT
                  • Product Updates
                  Moz Solutions
                  • SMB Solutions
                  • Agency Solutions
                  • Enterprise Solutions
                  Free SEO Tools
                  • Domain Authority Checker
                  • Link Explorer
                  • Keyword Explorer
                  • Competitive Research
                  • Brand Authority Checker
                  • Local Citation Checker
                  • MozBar Extension
                  • MozCast
                  Resources
                  • Blog
                  • SEO Learning Center
                  • Help Hub
                  • Beginner's Guide to SEO
                  • How-to Guides
                  • Moz Academy
                  • API Docs
                  About Moz
                  • About
                  • Team
                  • Careers
                  • Contact
                  Why Moz
                  • Case Studies
                  • Testimonials
                  Get Involved
                  • Become an Affiliate
                  • MozCon
                  • Webinars
                  • Practical Marketer Series
                  • MozPod
                  Connect with us

                  Contact the Help team

                  Join our newsletter
                  Moz logo
                  © 2021 - 2025 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
                  • Accessibility
                  • Terms of Use
                  • Privacy

                  Looks like your connection to Moz was lost, please wait while we try to reconnect.