• 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. Technical SEO
        4. The W3C Markup Validation Service - Good, Bad or Impartial?

        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 W3C Markup Validation Service - Good, Bad or Impartial?

        Technical SEO
        4
        4
        1427
        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.
        • artdivision
          artdivision last edited by

          Hi guys,

          it seems that now days it is almost impossible to achieve 0 (Zero) Errors when testing a site via (The W3C Markup Validation Service - https://validator.w3.org). With analytic codes, pixels and all kind of tracking and social media scripts gunning it seems to be an unachievable task.

          My questions to you fellow SEO'rs out there are 2:

          1. How important and to what degree of effort do you go when you technically review a site and make the decision as to what needs to be fixed and what you shouldn't bother with.

          2. How do you argue your corner when explaining to your clients that its impossible to active 100% validation.

          *As a note i will say that i mostly refer to Wordpress driven sites.

          would love ot hear your take.

          Daniel.

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

            I am my own client, so I can be as picky as a want, and I take care of the details that I feel are important.

            I pay close attention to how the site is responding and rendering when I pretend that I am a visitor.  I pay even more attention when a customer or visitor writes to me with a complaint.   In my opinion, if the site is working great then all is good.     🙂

            W3C validation seems to be of jugular importance to W3C evangelists.  They will tell you that you will burn in Hell if you don't achieve it with flying colors.  People who want to sell you their services will point at any fault that can be detected.

            Practical people have a different opinion.  I try to be as practical as possible.

            1 Reply Last reply Reply Quote 1
            • ATP
              ATP last edited by

              I agree with Andy,

              I use it as a guidance tool on any website i build. It serves a purpose, to check things are understood how they should be by a predetermined standard. But like any other automated tool it compares to set requirements that cannot always be met and cannot identify and ok these exceptions.

              As long as you understand the error its pointing out and why its pointing it out, and know that despite this the code is rendering correctly and all outcomes are working as expected then there is no problem.

              From an SEO stand point, aslong as google see's your site how you want it too i think it is a very very minor factor. Hell all of google returns errors of some variety.

              1 Reply Last reply Reply Quote 1
              • Andy.Drinkwater
                Andy.Drinkwater last edited by

                Hi Yiannis,

                I tend to add these in as an advisory to my clients because for the most part, and unless I see something specific, the results have absolutely no effect on SEO. If they wish to act on them, it is for their developers to handle.

                I don't argue my corner really - never had to. I just tell them like it is - the site is rendering fine in everything and with no issues, so fix errors if you have the time and resources.

                As I said, unless I spot something that is an actual problem, then it tends to just get bypassed.

                -Andy

                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

                • andrew_woffenden

                  What is the importance of exact match keywords for local SEO in service industry businesses?

                  local seo keywords local ranking factors

                  I am working with a local service contractor. Several of his competitors have domain names with exact match keywords. Audits of competitor sites and use of other research tools reveals that their sites are behind in content and technical SEO. The competitor sites consistently rank higher in organic search results. I am new to SEO and I understand that some of my lack of clarity here is a result of not understanding the value of key word use in local SEO vs. wider efforts.

                  Technical SEO | | Andrew Woffenden
                  10
                • williamhuynh

                  Good to use disallow or noindex for these?

                  technical seo noindex disallow

                  Hello everyone, I am reaching out to seek your expert advice on a few technical SEO aspects related to my website. I highly value your expertise in this field and would greatly appreciate your insights.
                  Below are the specific areas I would like to discuss: a. Double and Triple filter pages: I have identified certain URLs on my website that have a canonical tag pointing to the main /quick-ship page. These URLs are as follows: https://www.interiorsecrets.com.au/collections/lounge-chairs/quick-ship+black
                  https://www.interiorsecrets.com.au/collections/lounge-chairs/quick-ship+black+fabric Considering the need to optimize my crawl budget, I would like to seek your advice on whether it would be advisable to disallow or noindex these pages. My understanding is that by disallowing or noindexing these URLs, search engines can avoid wasting resources on crawling and indexing duplicate or filtered content. I would greatly appreciate your guidance on this matter. b. Page URLs with parameters: I have noticed that some of my page URLs include parameters such as ?variant and ?limit. Although these URLs already have canonical tags in place, I would like to understand whether it is still recommended to disallow or noindex them to further conserve crawl budget. My understanding is that by doing so, search engines can prevent the unnecessary expenditure of resources on indexing redundant variations of the same content. I would be grateful for your expert opinion on this matter. Additionally, I would be delighted if you could provide any suggestions regarding internal linking strategies tailored to my website's structure and content. Any insights or recommendations you can offer would be highly valuable to me. Thank you in advance for your time and expertise in addressing these concerns. I genuinely appreciate your assistance. If you require any further information or clarification, please let me know. I look forward to hearing from you. Cheers!

                  Technical SEO | | williamhuynh
                  0
                • RobertvanHeerde

                  Subpage with own homepage and navigation good or bad?

                  Hi everybody, I have the following question. At the company I work, we deliver several services. We help people buy the right second hand car (technical inspections). But we also have an import-service. Because those services are so different, I want to split them on our website. So our main website is all about the technical inspections. Then, when you click on import, you go to www.example.com/import. A subpage with it's own homepage en navigation, all about the import service. It's like you have an extra website on the same domain. Does anyone has experience with this in terms of SEO? Thank you for your time! Kind regards, Robert

                  Technical SEO | | RobertvanHeerde
                  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
                • rijwielcashencarry040

                  Good robots txt for magento

                  Dear Communtiy, I am trying to improve the SEO ratings for my website www.rijwielcashencarry.nl (magento). My next step will be implementing robots txt to exclude some crawling pages.
                  Does anybody have a good magento robots txt for me? And what need i copy exactly? Thanks everybody! Greetings, Bob

                  Technical SEO | | rijwielcashencarry040
                  0
                • qgairsoft

                  Are subdomains a good seo strategy for a multistore e-commerce?

                  Hi there I'm wondering what is the best strategy to work with multi-stores on magento: to use or not to use subdomains? Suppose we have the www.website.com and we configure it to use multistore. The url base will not have the store id on it so it will not be like www.website.com/store1 and www.website.com/store2. It will simply rely on the user session so if we have two categories for each store it will acces using: www.website.com/category1 (for store 1) www.website.com/category2 (for store 2) The homepage will allways be set on www.website.com so we should have a single page for several "home pages" (depending on the user session / store he is accessing). I guess this is not a good option if we want to rank for different keywords (for each store). So I was wondering if it is a good solution to set: store1.website.com store2.website.com This way we have 2 "home pages" each one able to rank. Does it make sense? Is it good or bad for seo? Another option I was considering was: www.website.com (for store 1) store2.website.com (for store 2) store3.website.com (for store 3) www.website.com/blog (for blog) Can this work? Good or bad for seo? best regards

                  Technical SEO | | qgairsoft
                  0
                • vivekrathore

                  Is it good to redirect million of pages on a single page?

                  My site has 10 lakh approx. genuine urls. But due to some unidentified bugs site has created irrelevant urls 10 million approx.  Since we don’t know the origin of these non-relevant links, we want to redirect or remove all these urls. Please suggest is it good to redirect such a high number urls to home page or to throw 404 for these pages.  Or any other suggestions to solve this issue.

                  Technical SEO | | vivekrathore
                  0
                • yousayjump

                  Using Sitemap Generator - Good/Bad?

                  Hi all I recently purchased the full licence of XML Sitemap Generator (http://www.xml-sitemaps.com/standalone-google-sitemap-generator.html) but have yet used it. The idea behind this is that I can deploy the package on each large e-commerce website I build and the sitemap will be generated as often as I set it be and the search engines will also be pinged automatically to inform them of the update. No more manual XML sitemap creation for me! Now it sounds great but I do not know enough about pinging search engines with XML sitemap updates on a regular basis and if this is a good or bad thing? Can it have any detrimental effect when the sitemap is changing (potentially) every day with new URLs for products being added to the site? Any thoughts or optinions would be greatly appreciated. Kris

                  Technical SEO | | yousayjump
                  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.