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.

      Track AI Overviews in Keyword Research
      Moz Pro

      Track AI Overviews in Keyword Research

      Try it free!
    • 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. Technical SEO
    4. Image Height/Width attributes, how important are they and should a best practice site include this as std

    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 Height/Width attributes, how important are they and should a best practice site include this as std

    Technical SEO
    3
    4
    1422
    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.
    • Dan-Lawrence
      Dan-Lawrence last edited by

      Hi

      How important are the image height/width attributes and would you expect a best practice site to have them included ?

      I hear not having them can slow down a page load time is that correct ?

      Any other issues from not having them ?

      I know some re social sharing (i know bufferapp prefers images with h/w attributes to draw into their selection of image options when you post)

      Most importantly though would you expect them to be intrinsic to sites that have been designed according to best practice guidelines ?

      Thanks

      1 Reply Last reply Reply Quote 0
      • Dan-Lawrence
        Dan-Lawrence @ThompsonPaul last edited by

        Thanks for confirming that Paul !

        Ive also noticed that when using services like Buffer etc, to post socially, that the articles image is not being displayed as an option in the images to choose from, to display as the image in the post, Instead its only showing options like the site logo etc which we don't want.  I asked Buffer tech support and they said that if the images had height/width attributes then they should then be presented as image options to accompany the post

        All Best

        Dan

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

          Image h x w attributes don't affect the actual speed of your page load much, Dan. They do strongly affect the perceived speed to the user.

          If the size attributes are included, the browser can leave a correctly-sized space for each image as the page gets rendered, even if the images haven't started to download yet. Then the rest of the page content flows in around the image "placeholders". (Images are always slower than text.)

          If no image size attributes are present, the browser essentially ignores the placing of the images until the image files actually download, then redraws the whole page to add the space back in for the images.

          This redrawing for the images means that text and other elements will move around on the page until all the images have downloaded and it has finished rendering. This gives the user an impression of a much slower page, since they can't start to read the content until it has stopped moving around. Done properly, the visitor can start reading the top of the page even while all the images lower on the page are still downloading.

          So yes, obviously including height and width attributes for images is standard best practice for designing an effective on-page user experience.

          Hope that helps?

          Paul

          P.S. As proof, Google thinks they're such a standard requirement that they have included a check for them as part of the scoring algorithm of their Google Page Speed tool.

          Dan-Lawrence 1 Reply Last reply Reply Quote 1
          • dotfly
            dotfly last edited by

            "How important are the image height/width attributes and would you expect a best practice site to have them included ?"

            This is not the most important SEO thing in the world BUT according to your 2nd question

            "I hear not having them can slow down a page load time is that correct ?"

            That`s the point! The question related to this issue is how relevant the whole thing might be?

            Modern browsers and broadband connections seem to make this insignificant but just in case there are some visitors which are not using the right settings they might get pictures unscaled and your whole site will be shown non-responsive... by the way, use responsive designs if you can to avoid that...

            Ive always been told to use these parameters . even if you dont need it it ensures that your code is a little bit more perfect 😉

            1 Reply Last reply Reply Quote 1
            • 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

            • dkellyagile

              Topic Cluster: URL Best Practices

              I'm trying to be mature and employ the Topic Cluster strategy to my content. In doing so I realized there are a few URL options. Some more difficult to execute than others. -Is it important to call out the Pillar Topic in your subtopic URL?
              -Does the Pillar Topic need to have its own landing page? (As opposed to just being part of the blog.) Here's an Example: My Pillar is: Inbound vs. Outbound
              My subtopic is: Marketing Platforms Here are the URL options I can think of... Option 1: https://pipelineinbound.com/blog/inbound-vs-outbound-marketing-platforms/ Option 2: https://pipelineinbound.com/blog/which-marketing-platforms/ Option 3: https://pipelineinbound.com/blog/marketing-platforms-inbound-vs-outbound/ Option 4 (Hardest): https://pipelineinbound.com/inbound-vs-outbound/marketing-platforms/ Are there some fundamental best practices for URL structure and Link Building as it pertains to Topic Clusters? Thanks!

              Technical SEO | | dkellyagile
              0
            • RichHamilton_qcs

              Best practices for types of pages not to index

              Trying to better understand best practices for when and when not use a content="noindex".  Are there certain types of pages that we shouldn't want Google to index?  Contact form pages, privacy policy pages, internal search pages, archive pages (using wordpress).  Any thoughts would be appreciated.

              Technical SEO | | RichHamilton_qcs
              0
            • the-gate-films

              URL Structure On Site - Currently it's domain/product-name NOT domain/category/product name is this bad?

              I have a eCommerce site and the site structure is domain/product-name rather than domain/product-category/product-name Do you think this will have a negative impact SEO Wise? I have seen that some of my individual product pages do get better rankings than my categories.

              Technical SEO | | the-gate-films
              0
            • BestRide

              How to create site map for large site (ecommerce type) that has 1000's if not 100,000 of pages.

              I know this is kind of a newbie question but I am having an amazing amount of trouble creating a sitemap for our site Bestride.com.  We just did a complete redesign (look and feel, functionality, the works) and now I am trying to create a site map.  Most of the generators I have used "break" after reaching some number of pages.  I am at a loss as to how to create the sitemap.  Any help would be greatly appreciated! Thanks

              Technical SEO | | BestRide
              0
            • Clicksjim

              WordPress - How to stop both http:// and https:// pages being indexed?

              Just published a static page 2 days ago on WordPress site but noticed that Google has indexed both http:// and https:// url's. Usually I only get http:// indexed though. Could anyone please explain why this may have happened and how I can fix? Thanks!

              Technical SEO | | Clicksjim
              1
            • Vivamedia

              How does Google find /feed/ at the end of all pages on my site?

              Hi! In Google Webmaster Tools I find *.../feed/ as a 404 page in crawl errors. The problem is that none of these pages exist and they have no inbound links (except the start page). FYI, it´s a wordpress site. Example: www.mysite.com/subpage1/feed/ www.mysite.com/subpage2/feed/ www.mysite.com/subpage3/feed/ etc Does Google search for /feed/ by default or why do I keep getting these 404´s every day?

              Technical SEO | | Vivamedia
              0
            • Weerdboil

              Delete old site but redirect domain to a new domain and site

              I just have a quick query and I have a feeling about what the answer is so just wanted to see what you guys thought... Basically I am working on a client site. This client has a few other websites that are divisions of their company. However these divisions/websites are no longer used. They are wanting to delete the websites but redirect the domains to their name main website. They believe this will pass on SEO benefits as these old division sites are old and have a good PR and history. I'm unsure for DEFINITE, which way is correct?

              Technical SEO | | Weerdboil
              0
            • GriffinHansen

              What are the pros and cons of moving one site onto a subdomain of another site?

              Two sites. One has weaker sales. What would the benefits and problems for SEO of moving the weak site from its own domain to a subdomain of the stronger site?

              Technical SEO | | GriffinHansen
              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
            • Digital Marketers
            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.