• ramc-7JcUnB

        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.

          Turn SEO data into actionable Content Briefs
          Moz Pro

          Turn SEO data into actionable Content Briefs

          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

          Access 20 years of data with flexible pricing
          Moz API

          Access 20 years of data with flexible pricing

          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. How much does dirty html/css etc impact 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.

        How much does dirty html/css etc impact SEO?

        Intermediate & Advanced SEO
        3
        5
        4994
        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.
        • HashtagHustler
          HashtagHustler last edited by

          Good Morning!

          I have been trying to clean up this website and  half the time I can't even edit our content without breaking the WYSIWYG Editor. Which leads me to the next question. How much, if at all, is this impacting our SEO. To my knowledge this isn't directly causing any broken pages for the viewer, but still, it certainly concerns me.

          I found this post on Moz from last year:

          http://a-moz.groupbuyseo.org/community/q/how-much-impact-does-bad-html-coding-really-have-on-seo

          We have a slightly different set of code problems but still wanted to revisit this question and see if anything has changed.

          I also can't imagine that all this broken/extra code is helping our page load properly.

          Thanks everybody!

          1 Reply Last reply Reply Quote 0
          • LesleyPaone
            LesleyPaone @jlane9 last edited by

            Invalid code does not equate to slow code. Google used to purposely not close html and body tags to save bandwidth and loading time. I took the question as meaning w3c valid code.

            1 Reply Last reply Reply Quote 0
            • jlane9
              jlane9 last edited by

              Bad code can definately affect seo rankings for a website.

              The question really depends on what exactly is wrong with the code. If its causing problems with page load speed times, that could be a problem for sure. HTML code and css code errors if written poorly or outdated does not really matter for actual seo and rankings on thier own. Unless these erros are causing other issues such as user experience which would increase bounce rates and affect rankings. If the code errors are causing duplicate pages., Html errors like missing H1, tags and such can affect on page seo scores which affect rankings. So in my honest opinion bad code can definately affect seo rankings for a website.

              Free page speed test with results breakdown can be had there => http://www.webpagetest.org

              Definately clean up all the HTML seo factors, usuability issues and page speed issues.  Hope that helps, Have a great day, Joe

              LesleyPaone 1 Reply Last reply Reply Quote 0
              • HashtagHustler
                HashtagHustler last edited by

                I love him...

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

                  As long as links are not broken and resources are not returning 404 errors, my understanding is that it is not affected at all. The only thing I would make sure of is that fetch as google returns the page looking like it should. Here is a video from the authority on the matter.

                  https://www.youtube.com/watch?v=j3KgrbiB1pc#t=52

                  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

                  • JamesHancocks1

                    Disallow: /jobs/? is this stopping the SERPs from indexing job posts

                    Hi,
                    I was wondering what this would be used for as it's in the Robots.exe of a recruitment agency website that posts jobs. Should it be removed? Disallow: /jobs/?
                    Disallow: /jobs/page/*/ Thanks in advance.
                    James

                    Intermediate & Advanced SEO | | JamesHancocks1
                    0
                  • Chris8198

                    Lightboxes and SEO

                    Do lightboxes (AKA popup boxes when you click "learn more" type CTAs) have any negative effect on SEO? We are looking at revamping our sites to have more of a tiled approach, and a lightbox with summary content popping out with additional CTAs, directing to pages with more information or free trial pages. Is there any downside to this approach from an organic perspective? is there anything specific to keep in mind when creating these if not?

                    Intermediate & Advanced SEO | | Chris8198
                    0
                  • RosemaryB

                    Does collapsing content impact Google SEO signals?

                    Recently I have been promoting custom long form content development for major brand clients.  For UX reasons we collapse the content so only 2-3 sentences of the first paragraph are visible.  However there is a "read more" link that expands the entire content piece.
                    I have believed that the searchbots would have no problem crawling, indexing and applying a positive SEO signal for this content.  However I'm starting to wonder.  Is there any evidence that the Google search algorithm could possible discount or even ignore collapsed content?

                    Intermediate & Advanced SEO | | RosemaryB
                    1
                  • Jseddon92

                    Removing .html from URLs - impact of rankings?

                    Good evening Mozzers. Couple of questions which I hope you can help with. Here's the first. I am wondering, are we likely to see ranking changes if we remove the .html from the sites URLs. For example website.com/category/sub-category.html Change to: website.com/category/sub-category/ We will of course make sure we 301 redirect to the new, user friendly URLs, but I am wondering if anyone has had previous experience of implementing this change and how it has effected rankings. By having the .html in the URLs, does this stop link juice being flowed back to the root category? Second question: If one page can be loaded with and without a forward slash "/" at the end, is this a duplicate page, or would Google consider this as the same page? Would like to eliminate duplicate content issues if this is the case. For example: website.com/category/ and website.com/category Duplicate content/pages?

                    Intermediate & Advanced SEO | | Jseddon92
                    0
                  • BeckyKey

                    Onsite SEO vs Offsite SEO

                    Hey I know the importance of both onsite & offsite, primarily with regard to outreach/content/social. One thing I am trying to determine at the moment, is how much do I invest in offsite. My current focus is to improve our onpage content on product pages, which is taking some time as we have a small team. But I also know our backlinks need to improve. I'm just struggling on where to spend my time. Finish the onsite stuff by section first, or try to do a bit of both onsite/offsite at the same time?

                    Intermediate & Advanced SEO | | BeckyKey
                    1
                  • bizzer

                    Does blocking foreign country IP traffic to site, hurt my SEO / US Google rankings?

                    I have a website is is only of interest to US visitors.  99% (at least) of Adsense income is from the US.  But I'm getting constant attempts by hackers to login to my admin account.  I have countermeasures fo combat that and am initiating others. But here's my question: I am considering not allowing any non US, or at least any non-North American, traffic to the site via a Wordpress plugin that does this.  I know it will not affect my business negatively, directly.  However, are there any ramifications of the Google bots of these blocked countries not being able to access my site?  Does it affect the rankings of my site in the US Google searches. At the very least I could block China, Russia and some eastern European countries.

                    Intermediate & Advanced SEO | | bizzer
                    0
                  • unibiz

                    Domain Alias SEO

                    We have 5 domain alias of our existing sites
                    All 5 domain alias are domain alias of our main site. It means, all domain alias will have exactly same site and contents
                    Like Main domain: www.mywebsite.com
                    DomainAlias: www.myproduct.com,  www.myproduct2.com,  www.myproduc3.com
                    And if anybody will open our site www.myproduct.com, it will open same website which I have in primary site what can i do to rank all website without any penalty....i s there any way? This is domain alias of in hosting industry Thanks

                    Intermediate & Advanced SEO | | unibiz
                    0
                  • UnderRugSwept

                    /%category%/%postname%/ Permalink structure

                    Mostly everyone seems to agree that /%category%/%postname%/ is the best blog structure. I'm thinking of changing my structure to that because now it's structured by date which is bad. But almost all of my posts are assigned to more than one category. Won't this create duplicate pages?

                    Intermediate & Advanced SEO | | UnderRugSwept
                    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.