• majorAlexa

        See all notifications

        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
        • My Q&A
        • 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. The main navigation is using JS, will this have a negative impact on SEO?

        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.

        The main navigation is using JS, will this have a negative impact on SEO?

        Intermediate & Advanced SEO
        4
        5
        1485
        Loading More Posts
        • Watching

          Notify me of new replies.
          Show question in unread.

        • Not Watching

          Do not notify me of new replies.
          Show question in unread if category is not ignored.

        • Ignoring

          Do not notify me of new replies.
          Do not show question in unread.

        • Oldest to Newest
        • Newest to Oldest
        • Most Votes
        Reply
        • Reply as question
        Locked
        This topic has been deleted. Only users with question management privileges can see it.
        • Ty1986
          Ty1986 last edited by

          Hi mozzers,

          We just redesigned our homepage and discovered that our main nav is using JS and when disabling JS, no main nav links was showing up. Is this still considered bad practice for SEO? https://cl.ly/14ccf2509478

          thanks

          1 Reply Last reply Reply Quote 1
          • Ty1986
            Ty1986 @josellamazares last edited by

            Thanks Jose!

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

              Googlebot does not render JavaScript
              We hear very often about JavaScript rendering is the assumption that the crawler is responsible for the rendering. But that's not the case. The rendering is done by the indexer (from Google Caffeine).

              More specifically, the Web Rendering Service (WRS), which is part of Google Caffeine. And this is exactly where the second great difficulty lies in the area of JavaScript SEO.

              Gary Illyes says: "Also, to clarify, WRS is a subsystem of Caffeine, just like the PageRanker (cos yes, we still use it) or the canonicalization algorithm."

              The process flow between the crawler and the indexer:

              HTML files are downloaded.
              CSS and JavaScript data will be downloaded in parallel.
              WRS (Web Rendering Service) (part of Google Caffeine) is used to run JS.
              WRS renders all files.
              Now Google Caffeine can index the content if necessary.
              And that's when Googlebot can crawl new links.
              Why is that a problem? For the crawler to be able to enter the content and follow the links, it must first pass the data to the indexer. The indexer renders the content and returns it to the crawlers. Only now can the crawler see the content and follow the links. On the next page, the game starts again. Page by page. (many processes)

              Unlike conventional pages, where the crawler crawls numerous pages and, after crawling, passes everything collectively to the indexer. (few processes)

              This process presents another challenge to search engines.

              Regards

              Ty1986 1 Reply Last reply Reply Quote 1
              • jasongmcmahon
                jasongmcmahon last edited by

                The only bad SEO Practice regarding JS that I've of is trying to hide the JS files from Search Engines, apparently, Google needs to render a whole page as it indexing it; so blocking any JS (& CSS for that matter) isn't a good thing.

                1 Reply Last reply Reply Quote 0
                • Vijay-Gaur
                  Vijay-Gaur last edited by

                  Hi There,

                  JS rendered UI isn't negative, it is however not a good practice also.

                  You can find complete information to the concept of JS rendered pages and UI on this link, https://www.portent.com/blog/seo/javascript-bad-for-seo.htm .

                  I hope this helps.

                  Regards,

                  Vijay

                  1 Reply Last reply Reply Quote 1
                  • 1 / 1
                  • First post
                    Last post

                  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

                  • gamstopbet

                    Will critical error in wordpress for memory limit affect seo rankings?

                    will critical error in wordpress to increase memory limit affect seo rankings?

                    Intermediate & Advanced SEO | | gamstopbet
                    0
                  • Kaylie

                    Should I optimize the login page? Will it affect the website SEO ranking?

                    I'm trying to resolve the site crawl issues that we have on our website. One of the links that has different issue types together is our login page. Currently we have two login pages that have the same content but different sub domains. **However I'm wondering if optimizing SEO on our login pages affects our website SEO ranking and if it's something better to do or not. ** To point out the details of the issues, the issue types that the logins pages have are "duplicate title", "duplicate content", "missing H1", "missing description", "thin content", "missing canonical tag" I'd appreciate your help, thank you!

                    Intermediate & Advanced SEO | | Kaylie
                    0
                  • kvivek05

                    SEO Impact of External links in JS tag

                    We have our JS tag and iframe tag being used over by 100 leading websites. What would be the SEO impact if we added a follow link in the iframe. Would it have any negative impact ? Vivek

                    Intermediate & Advanced SEO | | kvivek05
                    0
                  • theLotter

                    SEO Advice for Angular JS

                    We are changing our homepage (and gradually the rest of the site) to Angular JS.
                    In order not to lose anything in terms of SEO we are implementing Hashbangs + escaped fragment snapshots. Are there any other SEO considerations you think we should have and/or additional elements that we could add to the page to improve it in terms of SEO?

                    Intermediate & Advanced SEO | | theLotter
                    0
                  • shloy23-294584

                    SEO impact difference between a URL Rewrite and 301 redirect

                    Hi guys and girls! Just putting a new site live, we changed the URL from one thing to another and I created a 301 file redirecting the urls like for like. The developer installing it has created a different file with columns like: RewriteRule ^page/ http://www.site/page [R=301,L] RewriteRule ^/page/ http://www.site/page [R=301,L] What's the difference? The page redirects but is there a difference between the 301 redirect and this URL rewrite in terms of SEO and link value?

                    Intermediate & Advanced SEO | | shloy23-294584
                    0
                  • Travis-W

                    Using Folkd for Video Backlink

                    Hi Mozzers, What are your thoughts on using www.folkd.com for video SEO? We have a few company videos and would like to possibly get a backlink by either embedding one of our youtube videos on our site or self hosting the video. Are bookmarking sites like this spammy?

                    Intermediate & Advanced SEO | | Travis-W
                    0
                  • Omnipress

                    Do I need to use canonicals if I will be using 301's?

                    I just took a job about three months and one of the first things I wanted to do was restructure the site. The current structure is solution based but I am moving it toward a product focus. The problem I'm having is the CMS I'm using isn't the greatest (and yes I've brought this up to my CMS provider). It creates multiple URL's for the same page. For example, these two urls are the same page: (note: these aren't the actual urls, I just made them up for demonstration purposes) http://www.website.com/home/meet-us/team-leaders/boss-man/
                    http://www.website.com/home/meet-us/team-leaders/boss-man/bossman.cmsx (I know this is terrible, and once our contract is up we'll be looking at a different provider) So clearly I need to set up canonical tags for the last two pages that look like this: http://www.omnipress.com/boss-man" /> With the new site restructure, do I need to put a canonical tag on the second page to tell the search engine that it's the same as the first, since I'll be changing the category it's in? For Example: http://www.website.com/home/meet-us/team-leaders/boss-man/ will become http://www.website.com/home/MEET-OUR-TEAM/team-leaders/boss-man My overall question is, do I need to spend the time to run through our entire site and do canonical tags AND 301 redirects to the new page, or can I just simply redirect both of them to the new page? I hope this makes sense. Your help is greatly appreciated!!

                    Intermediate & Advanced SEO | | Omnipress
                    0
                  • IKT

                    SEO from Godaddy How Good is it?

                    http://www.godaddy.com/search-engine/seo-services.aspx?ci=44163 it said "Includes Standard Search Engine Visibility to Improve Search Rankings" it begs for question... Search Engine Visibility??? Improve SERP?!?!!? is it really that good? O.o; or have i successfully been eaten my promotional messages? Can anyone with experience with them share some information with me ? 🙂 (The price tag is mighty interesting)

                    Intermediate & Advanced SEO | | IKT
                    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.