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
      • SEO Q&A
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • Case Studies
      • 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.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      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.

      • SEO Q&A

        Insights & discussions from an SEO community of 500,000+.

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • 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.

      • Case Studies

        Explore how Moz drives ROI with a proven track record of success.

      • 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. When using ALT tags - are spaces, hyphens or underscores preferred by Google when using multiple words?

    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.

    When using ALT tags - are spaces, hyphens or underscores preferred by Google when using multiple words?

    Intermediate & Advanced SEO
    11
    14
    35237
    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.
    • BrooklynCruiser
      BrooklynCruiser last edited by

      when plugging ALT tags into images, does Google prefer spaces, hyphens, or underscores?  I know with filenames, hyphens or underscores are preferred and spaces are replaced with %20.

      Thoughts?

      Thanks!

      sierragarcia 1 Reply Last reply Reply Quote 3
      • sierragarcia
        sierragarcia @BrooklynCruiser last edited by

        When using ALT tags for images, it's generally best to use hyphens to separate multiple words in the text. Google and other search engines tend to interpret hyphens as word separators, which can help improve the accessibility and SEO of your web content. While underscores can also be used, hyphens are the more widely accepted and recommended practice. Spaces should be avoided, as they might not work as expected in all situations, as you mentioned, they can be replaced with "%20" in URLs. Using hyphens in ALT tags ensures better readability and consistency.

        1 Reply Last reply Reply Quote 0
        • educationedge012
          educationedge012 last edited by

          Google prefers hyphens (-) as word separators in ALT tags when using multiple words. Using hyphens helps improve the readability and search engine optimization of the ALT text for images. For example, if you have an image related to project management professionals, it's better to use "project-management-professionals" in the ALT tag rather than spaces or underscores. This practice helps search engines understand the content of the image more accurately. (PMP Exam Prep) (Project Management Professional)

          1 Reply Last reply Reply Quote 0
          • Moodesburn1991
            Moodesburn1991 last edited by

            When it comes to using multiple words in ALT tags, there isn't a strict preference by Google for specific characters like spaces, hyphens, or underscores. Google's algorithms are designed to understand various formats and interpret them accordingly. However, it is generally recommended to use hyphens or underscores to separate multiple words in ALT tags, as they can improve readability for both search engines and users. Using either hyphens or underscores creates distinct word boundaries and makes it easier for search engines like Google to recognize and index the content accurately. Ultimately, the most important aspect is to provide descriptive and relevant ALT text to enhance accessibility and user experience.

            i am also researching ai at the moment to help me with tech stuff reading this blog

            https://givevaluefirst.com/artificial-intelligence-for-dummies/

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

              Google prefers hyphens to spaces or underscores in alt tags when using multiple words. This is because hyphens are more descriptive and easier for screen readers to understand.

              For example, the alt text "black cat" is more descriptive and informative than "black_cat" or "black cat".

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

                Google recommends using hyphens (-) to separate words in ALT tags when using multiple words. This helps improve the accessibility and SEO of your images by making them more readable and understandable for both search engines and users.

                1 Reply Last reply Reply Quote 0
                • gravymatt-se
                  gravymatt-se Subscriber @Alex-Harford last edited by

                  YES!!!!

                  Always use lowercase for filenames because if you use Upper and Lower (sometimes called camel case) for your internal and menu linking Google will crawl it and index the U&l. Then the fun begins when you have to match your sitemap to that!

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

                    1. File names- always use the hyphen.

                    2. Alt Text - use spaces and normal word structure.  Ryan is correct on the technical intent behind the alt tag, but it can also be a good SEO tool, and you should treat those as exact phrase keywords.  So nobody is searching for "city-bikes", they are searching for "city bikes".  The alt tag should be what the user will put into google.

                    1 Reply Last reply Reply Quote 5
                    • Alex-Harford
                      Alex-Harford @BrooklynCruiser last edited by

                      Yes, use hyphens for filenames, and lower case.

                      gravymatt-se 1 Reply Last reply Reply Quote 1
                      • BrooklynCruiser
                        BrooklynCruiser @BrooklynCruiser last edited by

                        Thanks Ryan- so as with filenames, is it advantageous to us:

                        City-Bikes

                        or

                        City Bikes

                        with filenames, I am told preference is for city-bikes.jpg rather than "city bikes.jpg"

                        1 Reply Last reply Reply Quote 0
                        • RyanKent
                          RyanKent @BrooklynCruiser last edited by

                          Ryan, it depends on your site design but you are correct.

                          Link Titles will appear when you hover your mouse over the link.

                          Alt tags are designed to display a text description for those who cannot see the image, such as visually impaired readers or crawlers. You can simply type as you would normally with spaces.

                          Alt tags do have a SEO significance, as do the image's file name. Both can be used to associate keywords or phrases with your web page, as well as the image search vertical.

                          1 Reply Last reply Reply Quote 0
                          • James77
                            James77 @BrooklynCruiser last edited by

                            It will probably show the link title if the image is wrapped in a link tag and you have no alt tag. Alt tags do have SEO significance - and they do show when you hover on an image. Use normal text

                            1 Reply Last reply Reply Quote 0
                            • BrooklynCruiser
                              BrooklynCruiser @James77 last edited by

                              I am confused - I thought what you see when you hover is the Link Title - at least that's how my site has been functioning.

                              Does alt tag on images not have any SEO significance?

                              James77 RyanKent BrooklynCruiser Alex-Harford 4 Replies Last reply Reply Quote 0
                              • James77
                                James77 last edited by

                                The Alt tag is primarily there for usaility - ie when you hover the user can see the alt information. Therefore write how you would write normal text

                                BrooklynCruiser 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

                                • BeckyKey

                                  H Tags in Menu

                                  Hi I am checking the H2 tags on this page https://www.key.co.uk/en/key/dollies-load-movers-door-skates I have noticed my dev team have implemented H2's on the categories in the menu. Will this completely confuse Google as to what that page is about? In my opinion those links shouldn't be heading tags at all

                                  Intermediate & Advanced SEO | | BeckyKey
                                  0
                                • RosemaryB

                                  Is possible to submit a XML sitemap to Google without using Google Search Console?

                                  We have a client that will not grant us access to their Google Search Console (don't ask us why). Is there anyway possible to submit a XML sitemap to Google without using GSC? Thanks

                                  Intermediate & Advanced SEO | | RosemaryB
                                  0
                                • kirin44355

                                  Heading Tags (Specifically H2) being used within images

                                  Hello, Mozzers I have a question regarding placement of heading tags. I have seen this asked a few times on the forum but some are from a couple years ago so wanted to get a more up to date answer regarding this. We want to add H2 tags across our site but our two options are to wrap images we are using as navigation on the top of the page, these are directly below our pages H1 tag and actually make sense. Example H1 title: Vehicles Images are specific brand logo with H2 being wrapped to pull the img alt: "Ford Vehicles" "Checvy vehicles" etc. The wrap would look something like this: I appreciate your time, Chris

                                  Intermediate & Advanced SEO | | kirin44355
                                  0
                                • Michael.Leonard

                                  Google Penalty Checker Tool

                                  What is the best tool to check for the google penalty, What penalty hit the website. ?

                                  Intermediate & Advanced SEO | | Michael.Leonard
                                  0
                                • lunavista-comm

                                  Why is Google ranking irrelevant / not preferred pages for keywords?

                                  Over the past few months we have been chipping away at duplicate content issues. We know this is our biggest issue and is working against us. However, it is due to this client also owning the competitor site. Therefore, product merchandise and top level categories are highly similar, including a shared server. Our rank is suffering major for this, which we understand.  However, as we make changes, and I track and perform test searches, the pages that Google ranks for keywords never seems to match or make sense, at all. For example, I search for "solid scrub tops" and it ranks the "print scrub tops" category. Or the "Men Clearance" page is ranking for  keyword "Women Scrub Pants". Or, I will search for a specific brand, and it ranks a completely different brand. Has anyone else seen this behavior with duplicate content issues?  Or is it an issue with some other penalty?  At this point, our only option is to test something and see what impact it has, but it is difficult to do when keywords do not align with content.

                                  Intermediate & Advanced SEO | | lunavista-comm
                                  0
                                • ColeLusby

                                  Sites in multiple countries using same content question

                                  Hey Moz, I am looking to target international audiences. But I may have duplicate content. For example, I have article 123 on each domain listed below. Will each content rank separately (in US and UK and Canada) because of the domain? The idea is to rank well in several different countries. But should I never have an article duplicated? Should we start from ground up creating articles per country? Some articles may apply to both! I guess this whole duplicate content thing is quite confusing to me. I understand that I can submit to GWT and do geographic location and add rel=alternate tag but will that allow all of them to rank separately? www.example.com www.example.co.uk www.example.ca Please help and thanks so much! Cole

                                  Intermediate & Advanced SEO | | ColeLusby
                                  0
                                • brianflannery

                                  How does Google treat Header tags now? H1s, H2s and H3s. What happens if you skip the H2?

                                  The theme I am using now means each page on my is currently set up like this: h1> keyword phrase keyword phrase The new theme I want to use is different h1> keyword phrase Will changing the theme have a negative effect on the rankings due to losing the h2 on each page?

                                  Intermediate & Advanced SEO | | brianflannery
                                  0
                                • Kung_fu_Panda

                                  Using href lang tag for multi-regional targeting on the same page

                                  Hi, I have the site au.example.com and I ranked on google AustraliaI would like to be ranked also in Google New Zeland for the same page (au.example.com) Because they are geographically & culturally close Can I place href lang tag for both countries and present the same page The code should look like: OR should i have create a different page for New Zealand (for eample: http://au.example.com/EN-NZ) And the code will look like: What will work better or there is other solution? Hope I’m clear.. Thanks!

                                  Intermediate & Advanced SEO | | Kung_fu_Panda
                                  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.