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. JavaScript page loader - SEO impact

    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.

    JavaScript page loader - SEO impact

    Technical SEO
    2
    3
    1298
    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.
    • Lvet
      Lvet Subscriber last edited by

      Hello all,
      I am working on a site that has a bizarre page load system. All pages get loaded trough the same Javascript snippet, for example:

      Changing the values in the form changes the page that is loaded.

      The most incredible thing is that, against my expectations, pages do get indexed by Google.
      My question is: "Does loading pages dynamically using JavaScript affect the overall SEO performance?"

      Why are pages getting indexed?

      Thank you for shedding light on this.
      Cheers
      Luca

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

        Hi Luca! So sorry for the wait. Yes, Google is able to load, crawl, and index pages written in Javascript. There are mixed reports as to how well, exactly, but your research is correct.

        1 Reply Last reply Reply Quote 1
        • Lvet
          Lvet Subscriber last edited by

          I have done my homework researching.
          As a matter of fact since 2010 Google can crawl and execute JavaScript links, therefore the pages will be indexed and ranked exactly as static HTML pages.

          It would be nice to have confirmation on this

          1 Reply Last reply Reply Quote 0
          • 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

          • znotes

            What's the best way to test Angular JS heavy page for SEO?

            Hi Moz community, Our tech team has recently decided to try switching our product pages to be JavaScript dependent, this includes links, product descriptions and things like breadcrumbs in JS. Given my concerns, they will create a proof of concept with a few product pages in a QA environment so I can test the SEO implications of these changes. They are planning to use Angular 5 client side rendering without any prerendering. I suggested universal but they said the lift was too great, so we're testing to see if this works. I've read a lot of the articles in this guide to all things SEO and JS and am fairly confident in understanding when a site uses JS and how to troubleshoot to make sure everything is getting crawled and indexed. https://sitebulb.com/resources/guides/javascript-seo-resources/ However, I am not sure I'll be able to test the QA pages since they aren't indexable and lives behind a login. I will be able to crawl the page using Screaming Frog but that's generally regarded as what a crawler should be able to crawl and not really what Googlebot will actually be able to crawl and index. Any thoughts on this, is this concern valid? Thanks!

            Technical SEO | | znotes
            0
          • musthavemarketing

            Express js and SEO?

            Hi fellow Mozzers, I have been tasked with providing some SEO recommendations for a website that is to be built using express.js and Angular.  I wondered whether anyone has had any experience in such a framework? On checking a website built in this and viewing as a GoogleBot etc using the following tools it appears as though most of the content is invisible: http://www.webconfs.com/search-engine-spider-simulator.php http://www.browseo.net/ Obviously this is a huge issue and wonder if there are any workarounds, or reccomendations to assist (even if means moving away from this  - would love to hear about it)

            Technical SEO | | musthavemarketing
            2
          • neilhenderson

            Static or dynamic category pages for seo

            Hi, I'm developing an accommodation site with a limited number of properties in 8 categories.  I had been looking at making the properties blog posts and then using category function to show lists but its going to require a lot of customisation and I have seo concerns about the dynamic content as the category page is crucial. As I don't have a lot to add and listings will remain the same my latest thought was to create all as pages.  However if I create a page with a list of 12 properties on a category page is there anyway of adding some sorting criteria to that page (would be 7 options - swimming pool, near beach, on site creche, budget, mid-range, luxury) Thanks for any tips Neil

            Technical SEO | | neilhenderson
            0
          • marcuslind90

            What to do with temporary empty pages?

            I have a website listing real estate in different areas that are for sale. In small villages, towns, and areas, sometimes there is nothing for sale and therefore the page is completely empty with no content except a and some footer text. I have thousand of landing pages for different areas. For example "Apartments in Tibro" or "Houses in Ljusdahl" and Moz Pro gives me some warnings for "Duplicate Content" on the empty ones (I think it does so because the pages are so empty that they are quite similar). I guess Google could also think bad of my site if I have hundreds or thousands of empty pages even if my total amount of pages are 100,000. So, what to do with these pages for these small cities, towns and villages where there is not always houses for sale? Should I remove them completely? Should I make a 404 when no houses for sale and a 200 OK when there is? Please note that I have totally 100,000+ pages and this is only about 5% of all my pages.

            Technical SEO | | marcuslind90
            0
          • fionah

            Changing menus regularly - will this impact SEO

            We are working on an internal project, where the website owner is thinking of making regular changes to one or two items on the top level menu. Assuming they redirect the original pages or navigate to them in other ways, is there any other impact on SEO to changing the menu structure? I assume they'd submit new sitemaps after each change. Many thanks Fiona

            Technical SEO | | fionah
            0
          • BBuck

            Will blocking the Wayback Machine (archive.org) have any impact on Google crawl and indexing/SEO?

            Will blocking the Wayback Machine (archive.org) by adding the code they give have any impact on Google crawl and indexing/SEO? Anyone know? Thanks! ~Brett

            Technical SEO | | BBuck
            0
          • Richard555

            No_index of parent page

            Hi, sorry its a Friday question... Page A: www.example.com/house/ Page B: www.example.com/house/kitchen Can I 'no_index' page A without it effecting page B being indexed? Views? Many thanks!

            Technical SEO | | Richard555
            1
          • wparlaman

            What's the difference between a category page and a content page

            Hello, Little confused on this matter. From a website architectural and content stand point, what is the difference between a category page and a content page? So lets say I was going to build a website around tea. My home page would be about tea. My category pages would be: White Tea, Black Tea, Oolong Team and British Tea correct? (  I Would write content for each of these topics on their respective category pages correct?) Then suppose I wrote articles on organic white tea, white tea recipes, how to brew white team etc...( Are these content pages?) Do I think link FROM my category page ( White Tea) to my ( Content pages ie; Organic White Tea, white tea receipes etc) or do I link from my content page to my category page? I hope this makes sense. Thanks, Bill

            Technical SEO | | wparlaman
            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.