• to content
  • to footer
  • Features
  • Resources
    Resources IMG [EN]

    Discover all the features

    • Blog
      Speed matters, what's new and/ or important?
    • GDPR & security
      Guaranteeing privacy is one of our top priorities
    • About us
      Meet the team
    • Help Center
      Need help or guidance? Take a look in our help center
    • Use cases
      Learn how others, and you can use RUMvision
    • Contact us
      Questions about our real user monitoring solution?
  • Product tour
  • Customers
  • Pricing
  • Free tools
    • UX score check
      A single score, based on your own users + your ranking compared to 20k+ sites
    • Web Vitals history
      Get Core Web Vitals data up to 6 months in the past, of any domain.
    • Check your competitors
      Get Core Web Vitals data of your competitors and be the fastest.
  • Log in
  • Demo
  • Monitoring
    • Getting Started
      • Account setup
      • Installing the snippet
      • No (metric) data
      • Adding pages
      • Invite users
      • Adding competitors
    • Dashboards
      • Introduction
      • Audience
      • Core Web Vitals
      • Metrics table
      • Technical
      • Competitors
      • Third parties
    • Workflow
      • To-do's
      • Annotations
      • Conversations
    • Settings
      • Domain settings
      • Custom timing
      • - Akamai
      • - AWS Cloudfront
      • - Cloudflare
      • - Fastly
      • - NGINX
      • - Shopify
      • - Varnish
    • Configure snippet
      • Introduction
      • - General
      • - Track and block
      • - Advanced
      • - RUM
      • Updates & new data
    • SPA & Soft Navs
      • Introduction
      • Customize SPA tracking
      • Detailed TTFB tracking
      • - NextJS
      • - NuxtJS
      • - Other frameworks
      • Analyzing the data
  • Filters
    • Introduction
      • Your start with filters
      • By subscription
    • Webpage
      • Page URL
      • Page template
      • Page language
    • Metric
      • Metric Element
      • Element text
      • Element Type
      • File Type
      • Lazy Loading
      • Image Priority
      • Resource hint (LCP)
      • Cached
      • LoAF
      • Back & forward cache
      • Load state
    • Browser
      • Viewport
      • Bot Name
      • Browser Name
      • Browser Version
      • In-app Browsing
      • Ad blocker status
    • User
      • Pageview type
      • Navigation type
      • Pageview count
      • Rage clicks
    • Geography
      • CDN location
      • Country
    • Server
      • HTTP request method
      • GET parameters
    • Connectivity
      • Effective bandwidth
      • Bandwidth category
      • Reduced data usage
    • Device
      • Device memory
      • Processors
      • Battery level
      • Pixel ratio
      • OS name
      • OS version
      • Model
  • Account
    • Registration
      • Creating an account
      • Registration errors
      • On invitation
      • Expire/pause account
      • Reset password
      • Existing domain
    • Subscription
      • Plans
      • Add-ons
      • Your usage
      • Manage pageviews
      • Upgrading
      • Cancellation
    • Invoices
      • Billing procedure
      • Payment
      • Download & share
      • Received invitation
      • Change recipient(s)
      • Change (credit) card
      • Retroactive invoicing
    • Profile
      • Introduction
      • Settings
      • Dashboard
      • Theme
      • Apps
      • Notifications
      • Security
      • Two-factor authentication
      • Edit password
      • Logins
  • Health checks
    • Introduction
      • Recommendations
        • CLS element movement
        • Marketing query parameter impact
        • Non marketing query parameter impact
        • Rendering gap
        • Low bfcache usage
        • Slow interactions
        • Slow interactions (by hostname)
        • LCP lazyloaded
        • LCP fetchpriority
    • Workflow
      • Reports
        • Intro
        • Subscribe
        • Dashboard
        • Report history
      • Alerts
        • Intro
        • Budgets
        • Video tutorial
      • Your first alerts
        • Where to find alerts
        • Import preset alerts
        • Alerts overview
      • Customize alerts
        • Create your own alert
        • Subscribed users
      • Notifications
        • Enable notifications
        • Example notifications
    • APIs
      • JS API
        • Introduction
        • Get and set
        • Config
        • CWV metrics
        • Custom dimensions
        • Custom timing
        • Functions
        • Debugging
      • API Client
        • Introduction
    • Privacy & security
      • EU-based and GDPR compliant
        • General mission around privacy
      • Application
        • PII data
        • Account security
        • Domain security
        • Accountability
        • Verify with password
      • Monitoring
        • PII data
        • Privacy by default
        • Anonymizing data
        • Country & IP address
        • Browser & UA
        • Other data
      • Website
        • Privacy policy
    • Glossary
      • Monitoring
        • Core Web Vitals
        • PageSpeed Insights
        • Google Search Console
        • CrUX API
        • Real User Monitoring
        • Synthetic monitoring
        • - Lighthouse
        • - Webpagetest
      • Metrics
        • Web Vitals
        • - TTFB
        • - FCP
        • - LCP
        • - CLS
        • - INP
        • - FID
        • Field data
        • - FMP
        • - DCL
        • Lab data
        • - TTI
        • - TBT
        • - SpeedIndex
      • Browser
        • Chromium
        • Google Chrome
        • Origin trials
        • - Soft navigations
      • Dashboarding
        • 75th percentile
        • Aggregation
        • Distribution
        • Histogram
        • Timeline
      • Other
        • Low-entropy images
        • Page Experience ranking signal
        • Server-Side Rendering
        • Multi-Page Application
        • Client-side Rendering
        • Single Page Application
        • Progressive Web Apps
        • Accelerated Mobile Pages
    • FAQ
      • General
        • Tracking
        • Data
        • Dashboard
        • Notifications
      • Pricing
      • Docs
      • Monitoring
      • Filters
      • Account
      • Health checks
      • Workflow
      • APIs
      • Privacy & security
      1. Home
      2. Help Center
      3. Glossary
      4. Metrics
      5. DOMContentLoaded
      • Monitoring
        • Core Web Vitals
          • PageSpeed Insights
            • Google Search Console
              • CrUX API
                • Real User Monitoring
                  • Synthetic monitoring
                    • • Lighthouse
                      • • Webpagetest
                      • Metrics
                        • Web Vitals
                          • • TTFB
                            • • FCP
                              • • LCP
                                • • CLS
                                  • • INP
                                    • • FID
                                      • Field data
                                        • • FMP
                                          • • DCL
                                            • Lab data
                                              • • TTI
                                                • • TBT
                                                  • • SpeedIndex
                                                  • Browser
                                                    • Chromium
                                                      • Google Chrome
                                                        • Origin trials
                                                          • • Soft navigations
                                                          • Dashboarding
                                                            • 75th percentile
                                                              • Aggregation
                                                                • Distribution
                                                                  • Histogram
                                                                    • Timeline
                                                                    • Other
                                                                      • Low-entropy images
                                                                        • Page Experience ranking signal
                                                                          • Server-Side Rendering
                                                                            • Multi-Page Application
                                                                              • Client-side Rendering
                                                                                • Single Page Application
                                                                                  • Progressive Web Apps
                                                                                    • Accelerated Mobile Pages

                                                                                    DOMContentLoaded

                                                                                    This metric is available in RUM & synthetic monitoring, but not in soft navigations.

                                                                                    • PreviousFirst Meaningful Paint
                                                                                    • back to parent
                                                                                    • NextLab data

                                                                                    Get the best sitespeed user experience today

                                                                                    Increase user happiness, engagement, conversions and retention with good SUX!

                                                                                    Get started Request a Demo

                                                                                     

                                                                                    Product

                                                                                    • Features
                                                                                    • Pricing
                                                                                    • Interactive product tour
                                                                                    • Book free expert demo

                                                                                    Free tools

                                                                                    • UX score check
                                                                                    • Core Web Vitals 6 month history
                                                                                    • CrUX score - competitor compare

                                                                                    Resources

                                                                                    • About us
                                                                                    • Blog
                                                                                    • Use cases
                                                                                    • Help center
                                                                                    • Contact us

                                                                                    Subscribe to our Newsletter: RUMor has it

                                                                                    2026 All Rights Reserved

                                                                                    • Sitemap
                                                                                    • Terms and conditions
                                                                                    • Privacy policy
                                                                                    • Accessibility
                                                                                    • Back to top

                                                                                    This website uses Google Analytics compliant to European privacy regulations, but wishes your approval for additional cookies to improve this website.

                                                                                    Settings Deny all Accept

                                                                                    This website uses Google Analytics compliant to European privacy regulations, but wishes your approval for additional cookies to improve this website.

                                                                                    Settings Deny all Accept