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. Digital Marketing
    3. Web Design
    4. Can anyone recommend a tool that will identify unused and duplicate CSS across an entire site?

    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.

    Can anyone recommend a tool that will identify unused and duplicate CSS across an entire site?

    Web Design
    4
    6
    3519
    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.
    • danatanseo
      danatanseo last edited by

      Hi all,

      So far I have found this one: http://unused-css.com/   It looks like it identifies unused, but perhaps not duplicates? It also has a 5,000 page limit and our site is 8,000+ pages....so we really need something that can handle a site larger than their limit.

      I do have Screaming Frog. Is there a way to use Screaming Frog to locate unused and duplicate CSS?

      Any recommendations and/or tips would be great. I am also aware of the Firefix extensions, but to my knowledge they will only do one page at a time?

      Thanks!

      1 Reply Last reply Reply Quote 0
      • danatanseo
        danatanseo @danatanseo last edited by

        I read your post at Mstoic Hemant and noticed your comment about Firefox 10. Since I couldn't get Dust-Me Spider to work in my current version of Firefox I tried downloading and installing the older version 10 as you suggested. When I did so, I received the message that the Dust-Me Spider was not compatible with this version of Firefox and it was disabled.

        We are considering purchasing the paid version of Unused CSS (http://unused-css.com/pricing) - Do you have any experience using the upgraded version? Does it deliver what it promises?

        Thanks!

        1 Reply Last reply Reply Quote 0
        • danatanseo
          danatanseo @mstoic last edited by

          Hi Hemant,

          I tried using Dust-Me in Firefox, but for some reason it won't work on this sitemap:  http://www.ccisolutions.com/rssfeeds/CCISolutions.xml

          Could it be that this sitemap is too large? I even tried setting up a local folder to store the data, but everytime I try the spider I get the message "The sitemap has no links."

          I am using Firefox 27.0.1

          danatanseo 1 Reply Last reply Reply Quote 0
          • Christy-Correll
            Christy-Correll Staff last edited by

            Hi Dana, did either of these responses help? What did you end up settling on? We'd love an update! Thanks.

            Christy

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

              I have an article on that here. An extension for firefox called Dust-Me selectors can help you identify unused CSS on multiple pages. It tracks all the pages you visit of a website and tracks classes and ids which were never used. Moreover, you can also give it a sitemap and it will figure out the CSS which was never used.

              danatanseo 1 Reply Last reply Reply Quote 1
              • Travis_Bailey
                Travis_Bailey last edited by

                This sounds like it might just do the trick. You'll need to have Ruby installed for it to work. If you have a Mac, it's already on there. If you have a Windows you'll need this. It's pretty easy, I installed Ruby on my Windows gaming rig. If you're running a Linux flavor, try this.

                Just take your URLs from the site crawl and make a txt file. You can compare that with your CSS file. I've never tried it on a large site, let me know how it goes for you.

                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

                • AdsposureDev

                  Why is my financial services site being flagged as gambling

                  Watchguard and Websense/Forecepoint are flagging my financial services site gambling...how can I prevent that from happening.  https://fwag.com/

                  Web Design | | AdsposureDev
                  0
                • Dan-Louis

                  How to fix non-crawlable pages affected by CSS modals?

                  I stumbled across something new when doing a site audit in SEMRUSH today ---> Modals. The case: Several pages could not be crawled because of (modal:) in the URL. What I know: "A modal is a dialog box/popup window that is displayed on top of the current page" based on CSS and JS. What I don't know: How to prevent crawlers from finding them.

                  Web Design | | Dan-Louis
                  0
                • BearPaw88

                  Is it against google guidelines to use third party review sites as well as have reviews on my site marked up with schema?

                  So, i look after a site for my family business. We have teamed up with the third party site TrustPilot because we like the way it enables us to send out reviews to our customers directly from our system. It's been going great and some of the reviews have been brilliant. I have used a couple of these reviews on our site and marked them up with: REVIEW CONTENT We work in the service industry and so one of the problems we have found is that getting our customers to actually go online and leave a review. They normally just leave their comments on a job sheet that the workers have signed when they leave. So I have created a page on our site where we post some of the reviews the guys receive too. I have used the following: REVIEW TITLE REVIEW Written by: CUSTOMER NAME Type of Service:House Removal Date published: DATE PUBLISHED 10 / 10 stars I was just wondering I was told that this could be against googles guidelines and as i've seen a bit of a drop in our rankings in the last week or so i'm a little concerned. Is this getting me penalised? Should I not use my reviews referencing the ones on trust pilot and should i not have my own reviews page with rich snippets?

                  Web Design | | BearPaw88
                  1
                • KempRugeLawGroup

                  Incorporating Spanish Page/Site

                  We bought an exact match domain (in Spanish) to incorporate with regular website for a particular keyword. This is our first attempt at this, and while we do have Spanish speaking staff that will translate/create a nice, quality page, we're not going to redo everything in Spanish page. Any advice on how to implement this? Do I need to create a whole other website in Spanish? Will that be duplicate content if I do? Can I just set it up to show the first page in Spanish, but if they click on anything else it redirects to our site? I'm pretty clueless on this, so if anything I've suggested is off-the-wall or a violation, I'm really just spit-balling, trying to figure out how to implement this. Thanks, Ruben

                  Web Design | | KempRugeLawGroup
                  0
                • InvoqMarketing

                  Duplicate content on websites for multiple countries

                  I have a client who has a website for their U.S. based customers. They are currently adding a Canadian dealer and would like a second website with much of the same info as their current website, but with Canadian contact info etc. What is the best way to do this without creating duplicate content that will get us penalized? If we create a website at ABCcompany.com and ABCCompany.ca or something like that, will that get us around the duplicate content penalty?

                  Web Design | | InvoqMarketing
                  0
                • Will_Craig

                  Is it better to redirect a url or set up a landing page for a new site?

                  Hi, One of our clients has got a new website but is still getting quite a lot of traffic to her old site which has a page authority of 30 on the home page and has about 20 external backlinks. It's on a different hosting package so a different C block but I was wondering if anyone could advise if it would be better to simply redirect this page to the new site or set up a landing page on this domain simply saying "Site has moved, you can now find us here..." sort of idea. Any advice would be much appreciated Thanks

                  Web Design | | Will_Craig
                  0
                • Lusodados

                  Seo and CSS media queries

                  Hello to all participants! I'm starting on responsive design with css media queries and I was wondering if hidding content can, in this case, can also be bad for seo? I know that hidding content is bad (eg. display: none;), but is it also like that with responsive design or does Google see it other way? If I have a news column with title, image and text for 1024px and hide the text and image leaving just the title for 768px, or smaller, will Google consider this black hat and will it be bad for seo? are there any articles I can read about this subject, and other similar subjects? sorry for my english 🙂 thanks

                  Web Design | | Lusodados
                  1
                • C-Style

                  Flat vs. Silo Site Architecture, What's Better

                  I'm in the midst of converting a fairly large website (500+ pages) into WordPress as a content management system. I know that there are two schools of thought regarding site architecture: Those who believe that everything should be categorized, I.E.- website.com/shoes/reebok/running People who believe that the less clicks it takes from the homepage the better. As it stands, our current site has a completely flat architecture, with landing pages being added randomly to the root, I.E.- website.com/affordable-shoes-in-louisville-ky I'm beginning to think that there is a gray area with this. I spoke to someone who says that you should never have a page more than 2 categories/subfolders deep. But if we plan on adding a lot of content doesn't it make sense to set the site up into many categories so we can set a good foundation for adding massive amounts of content. Also, will 301 redirecting to the new structure cause us to lose rankings for certain terms? Any help here is appreciated.

                  Web Design | | C-Style
                  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.