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
    3521
    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

                • 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
                • Sam.at.Moz

                  Hiding content until user scrolls - Will Google penalize me?

                  I've used: "opacity:0;" to hide sections of my content, which are triggered to show (using Javascript) once the user scrolls over these sections. I remember reading a while back that Google essentially ignores content which is hidden from your page (it mentioned they don't index it, so it's close to impossible to rank for it). Is this still the case? Thanks, Sam

                  Web Design | | Sam.at.Moz
                  0
                • 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
                • PlanetDISH

                  Will having two wordpress themes installed hurt seo?

                  We currently have 3 sites built on WordPress that have little to no blogging capabilities. Currently, all published posts show up on a /category page which does not resemble the traditional blog format and is not aesthetically pleasing. We would like to have a more traditional blog and are considering installing a second wordpress theme on the site which will strictly be used for /blog and all the posts. My question is will having the second WordPress installation on the sites hurt us in any way on the SEO front and if we go this way should we place the install in a subfolder or on a subdomain? Is there anything else we need to worry about with making this transition? Thank you in advance for the advice! Patrick

                  Web Design | | PlanetDISH
                  0
                • RobertFisher

                  Anyone using CloudFlare on multiple sites?

                  We are considering using CloudFlare as a CDN for a large group of sites. The fees are $5 to $200 depending on many factors. We tried the free trial on one site and were impressed with the results. I am wondering if any of you have any longer term experience with this and performance metrics, etc.

                  Web Design | | RobertFisher
                  1
                • dsinger

                  Average Time to Conversion on Site

                  I am curious to know if there is a way to view or calculate the average time it takes site visitors to convert per session.  For example, based on a current website design, the average time on site might be 3 minutes and the number of conversions might be 100.  is there a way to say that for the current website design, it takes 3 minutes for the average site visitor to submit a web form? Then, as I redesign the site, my goal would be to improve the average time to conversion by making the web form more accessible and require less information within the form itself. I don't think this is currently possible in GA.  Has anyone figured out a way to accomplish this by use of traditional tracking tools?  Or, am I facing having to code my site to record each visitor's time on site from the second they enter and then stop the clock when they submit the form?

                  Web Design | | dsinger
                  0
                • Atlanta-SMO

                  ECWID How to fix Duplicate page content and external link issue

                  I am working on a site that has a HUGE number of duplicate pages due to ECWID ecommerce platform.  The site is built with Joomla!  How can I rectify this situation?  The pages also show up as "external " links on crawls...  Is it the ECWID platform?  I have never worked on a site that uses this. Here is an example of a page with the issue (there are 6280 issues) URL: http://www.metroboltmi.com/shop-spare-parts?Itemid=218&option=com_rokecwid&view=ecwid&ecwid_category_id=3560081

                  Web Design | | Atlanta-SMO
                  0
                • DownPour

                  Infinite Scrolling vs. Pagination on an eCommerce Site

                  My company is looking at replacing our ecommerce site's paginated browsing with a Javascript infinite scroll function for when customers view internal search results--and possibly when they browse product categories also. Because our internal linking structure isn't very robust, I'm concerned that removing the pagination will make it harder to get the individual product pages to rank in the SERPs. We have over 5,000 products, and most of them are internally linked to from the browsing results pages in the category structure: e.g. Blue Widgets, Widgets Under $250, etc. I'm not too worried about removing pagination from the internal search results pages, but I'm concerned that doing the same for these category pages will result in de-linking the thousands of product pages that show up later in the browsing results and therefore won't be crawlable as internal links by the Googlebot. Does anyone have any ideas on what to do here? I'm already arguing against the infinite scroll, but we're a fairly design-driven company and any ammunition or alternatives would really help. For example, would serving a different page to the Googlebot in this case be a dangerous form of cloaking? (If the only difference is the presence of the pagination links.) Or is there any way to make rel=next and rel=prev tags work with infinite scrolling?

                  Web Design | | DownPour
                  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.