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

      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.

      Let your business shine with Listings AI

      Let your business shine with Listings AI

      Get found
    • 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
    • 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. Sudden Drop in Mobile Core Web Vitals

    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.

    Sudden Drop in Mobile Core Web Vitals

    Technical SEO
    core web vitals google search console technical seo
    4
    5
    3321
    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.
    • rwat
      rwat Subscriber last edited by

      Web Vitals Screengrab.PNG

      For some reason, after all URLs being previously classified as Good, our Mobile Web Vitals report suddenly shifted to the above, and it doesn't correspond with any site changes on our end.

      Has anyone else experience something similar or have any idea what might have caused such a shift?

      Curiously I'm not seeing a drop in session duration, conversion rate etc. for mobile traffic despite the seemingly sudden change.

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

        I can’t understand their algorithm for core web vitals. I have made some technical updates to our website for speed optimization, but the thing that happened in the search console is very confusing for my site.

        166f3e54-485f-44f4-81a5-4e05cd49dc04-image.png

        For desktops, pages are indexed as good URLs
        while mobile-indexed URLs are displayed as poor URLs.
        Our website is the collective material for people looking for Canada immigration (PAIC), and 70% of the portion is filled with text only. We are using webp images for optimization, still it is not passing Core Web Vitals.

        I am looking forward to the expert’s suggestion to overcome this problem.

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

          I can’t understand their algorithm for core web vitals. I have made some technical updates to our website for speed optimization, but the thing that happened in the search console is very confusing for my site.

          3b9f9b48-74d8-4ed4-bf02-c1fefafa21e7-image.png

          2e3277d8-e620-4e4d-acbf-bcd233a16cf4-image.png

          For desktops, pages are indexed as good URLs
          while mobile-indexed URLs are displayed as poor URLs.
          Our website is the collective material for people looking for Canadian immigration (PAIC), and 70% of the portion is filled with text only. We are using webp images for optimization, still it is not passing Core Web Vitals.

          I am looking forward to the expert’s suggestion to overcome this problem.

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

            @rwat Hi, did you find a solution?

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

              Yes, I am also experiencing the same for one of my websites, but most of them are blog posts and I am using a lot of images without proper optimization, so that could be the reason. but not sure.

              It is also quite possible that Google maybe adding some more parameters to their main web critical score.

              1 Reply Last reply Reply Quote 0
              • 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

              • WayneM.

                Meta name Author

                wordpress technical seo meta data

                Hello! I have a problem. I'm using Rank Math for WordPress. But I can’t configure a basic thing such as <meta name="author" content="" />. I had to insert this code manually using the hook. Does anyone know a normal way to do this markup? Example page: https://b-shoes.com/foot-shaped-shoes/ Thank you!

                Technical SEO | | WayneM.
                0
              • tif-swedensky

                Unsolved Google Search Console Still Reporting Errors After Fixes

                google search console sitemaps 400 errors

                Hello, I'm working on a website that was too bloated with content. We deleted many pages and set up redirects to newer pages. We also resolved an unreasonable amount of 400 errors on the site. I also removed several ancient sitemaps that listed content deleted years ago that Google was crawling. According to Moz and Screaming Frog, these errors have been resolved. We've submitted the fixes for validation in GSC, but the validation repeatedly fails. What could be going on here? How can we resolve these error in GSC.

                Technical SEO | | tif-swedensky
                0
              • Dingos

                URL structure for same product in multiple categories?

                url inspection breadcrumbs technical seo seo tactics

                Hello everyone ! I am building an ecom store using wordpress. I have assigned multiple categories to the same product. What should be the URL structure when users are navigating with different product categories? Categories Assigned: tshirt, blue, striped
                Product Name: blue-striped-tshirt Option 01: Matching site navigation breadcrumb to product url URL - ecomstore.com/tshirt/blue-striped-tshirt
                Breadcrumb - home/tshirt/blue-striped-tshirt URL - ecomstore.com/blue/blue-striped-tshirt (canonical to 1 product page)
                Breadcrumb - home/color/blue/blue-striped-tshirt URL - ecomstore.com/striped/blue-striped-tshirt (canonical to 1 product page)
                Breadcrumb - home/type/striped/blue-striped-tshirt Option 02: Same product urls and different breadcrumbs based on user site navigation URL - ecomstore.com/tshirt/blue-striped-tshirt
                Breadcrumb - home/tshirt/blue-striped-tshirt URL - ecomstore.com/tshirt/blue-striped-tshirt (url same as 1 product page)
                Breadcrumb - home/color/blue/blue-striped-tshirt URL - ecomstore.com/tshirt/blue-striped-tshirt (url same as 1 product page)
                Breadcrumb - home/type/striped/blue-striped-tshirt I have decided to got with Option 01 so that the product in each category can be ranked according to each category keyword. Which option is the best according to your experience or is there any other best practice?

                Technical SEO | | Dingos
                0
              • qualistay

                Best Web-site Structure/ SEO Strategy for an online travel agency?

                Dear Experts! I need your help with pointing me in the right direction. So far I have found scattered tips around the Internet but it's hard to make a full picture with all these bits and pieces of information without a professional advice. My primary goal is to understand how I should build my online travel agency web-site’s (https://qualistay.com) structure, so that I target my keywords on correct pages and do not create a duplicate content. In my particular case I have very similar properties in similar locations in Tenerife. Many of them are located in the same villa or apartment complex, thus, it is very hard to come up with the unique description for each of them. Not speaking of amenities and pricing blocks, which are standard and almost identical (I don’t know if Google sees it as a duplicate content). From what I have read so far, it’s better to target archive pages rather than every single property. At the moment my archive pages are: all properties (includes all property types and locations), a page for each location (includes all property types). Does it make sense adding archive pages by property type in addition OR in stead of the location ones if I, for instance, target separate keywords like 'villas costa adeje' and 'apartments costa adeje'? At the moment, the title of the respective archive page "Properties to rent in costa adeje: villas, apartments" in principle targets both keywords... Does using the same keyword in a single property listing cannibalize archive page ranking it is linking back to? Or not, unless Google specifically identifies this as a duplicate content, which one can see in Google Search Console under HTML Improvements and/or archive page has more incoming links than a single property? If targeting only archive pages, how should I optimize them in such a way that they stay user-friendly. I have created (though, not yet fully optimized) descriptions for each archive page just below the main header. But I have them partially hidden (collapsible) using a JS in order to keep visitors’ focus on the properties. I know that Google does not rank hidden content high, at least at the moment, but since there is a new algorithm Mobile First coming up in the near future, they promise not to punish mobile sites for a collapsible content and will use mobile version to rate desktop one. Does this mean I should not worry about hidden content anymore or should I move the descirption to the bottom of the page and make it fully visible? Your feedback will be highly appreciated! Thank you! Dmitry

                Technical SEO | | qualistay
                1
              • CarlLarson

                What are best options for website built with navigation drop-down menus in JavaScript, to get those menus indexed by Google?

                This concerns f5.com, a large website with navigation menus that drop down when hovered over. The sub nav items (example: “DDoS Protection”) are not cached by Google and therefore do not distribute internal links properly to help those sub-pages rank well. Best option naturally is to change the nav menus from JS to CSS but barring that, is there another option? Will Schema SiteNavigationElement work as an alternate?

                Technical SEO | | CarlLarson
                0
              • praveen439

                Sudden drop in Rankings after 301 redirect

                Greetings to Moz Community. Couple of months back, I have redirected my old blog to a new URL with 301 redirect because of spammy links pointed to my old blog. I have transfer all the posts manually, changed the permalink structure and 301 redirected every individual URL. All the ranking were boosted within couple of weeks and regained the traffic. After a month I have observed, the links pointed to old site are showing up in Webmaster Tools for the new domain. I was shocked (no previous experience) and again Disavowed all links. Today, all the positions went down for new domain. My questions are: 1. Did the Disavow tool worked this time with new domain? All the links pointed to old domain were devaluated? Is this the reason for ranking drop? Or 2. 301 Old domain with Unnatural links causes the issue? 3. Removing 301 will help to regain few keyword positions? I'm taking this as a case study. Already removed the 301 redirect. Looking for solid discussion.Thanks.

                Technical SEO | | praveen439
                0
              • Banknotes

                Do web pages have to be linked to a menu?

                I have a situation where people search for terms like, say 1978 one dollar bill. Even though there never was a 1978 one dollar bill.   I want to make a page to capture these searches but since there wasn't such a thing as a one dollar bill I don't want it connected to the rest of my content which is reality based.   Does that make sense? Anyway,  my question is,  can I publish pages that aren't linked to my menu structure but that will be searchable or, am I going to have to figure out a way to make these oddball pages accessible through my menu?

                Technical SEO | | Banknotes
                0
              • poolguy

                How to Resolve Rankings Drop from a DDOS Attack?

                Our rankings just plummeted on Tuesday across the board.  There was a DDOS attack on Tuesday and since then the rankings went down and have stayed down, even though the DDOS attack has been resolved.   Also, this is the 3rd or 4th attack they've encountered this year. How long could this last?  How can we deal with this? Thanks

                Technical SEO | | poolguy
                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.