Read the full report in WordPress admin
Your current Core Web Vitals, page views, unique visitors, device and browser statistics in one place, under CartHacker in your admin menu.
Core Web Vitals Monitoring for WordPress Free
Core Web Vitals monitoring plugin for WordPress
Track Core Web Vitals in WordPress on every real visit: Loading (LCP), Responsiveness (INP) and Visual stability (CLS), pass or fail by Google's rule. Unlike a PageSpeed Insights test, you get real-visitor data within minutes, plus your traffic, on WordPress and WooCommerce.
- On WordPress.org soon
- Built for WooCommerce too
- Free email when your site slows down
Example
Real numbers
Only 39.5% of WooCommerce stores pass Core Web Vitals for mobile users
Your hosting, theme and plugins decide your speed, so every update can make your store faster or slower. The plugin shows which one it was, from your real visitors, the day it happens.
From the CartHacker study of 1.58 million online stores, August 2026, built on Google's Chrome UX Report and the HTTP Archive. Read the full study
39.5%
of WooCommerce stores pass all three Core Web Vitals for mobile users
Shopify: 76.5%
12.7%
of WooCommerce stores have a good server response (Time to First Byte)
Shopify: 81.9%
What you get
Your Core Web Vitals and traffic without leaving WordPress
Widget in your dashboard
Monitor your current Core Web Vitals in a widget right on the WordPress Dashboard, so a slow week never slips past you.
Proof that your speed fix worked
The daily speed chart keeps your history, so you'll know whether WP Rocket, Redis or LiteSpeed Cache helped you get better scores.
See the plugin
Your Core Web Vitals report builds itself from your first visitor
Example
Premium
How to install
How to monitor Core Web Vitals in WordPress in 4 steps
- 1Install the pluginIn Plugins > Add Plugin, search for CartHacker Core Web Vitals and press Install.
- 2Press Start free monitoringOpen CartHacker > Core Web Vitals in your admin menu.
- 3Confirm your siteSign in or create a free CartHacker account, then confirm your site.
- 4Open your site onceVisit it in a private window, then press Refresh report.
Free vs Premium
Free on every WordPress site. Deeper with Premium.
Free account
$0 no credit card required
- Core Web Vitals from real visitors
- Traffic: page views, visitors, devices, browsers
- 7 days of speed and traffic history
- Measures up to 1,000 page views a day
- Weekly report and slowdown alert by email
CartHacker Premium PRO
Loading your price a month or Loading your price a year
In your currency, with your local tax.
Everything in Free, plus:
- Automatic speed reports for your 50 most visited pages
- Real-visitor speed for each of your busiest pages
- Speed by page type: product, category, cart
- 180 days of speed and traffic history
- Measures up to 50,000 page views a day
Common questions
FAQ
How do I check Core Web Vitals in WordPress?
Install the free CartHacker Core Web Vitals Monitoring plugin, press Start free monitoring and open your site once. CartHacker > Core Web Vitals then shows Loading, Responsiveness and Visual stability from your real visitors, pass or fail by Google's rule.
What is a good Core Web Vitals score?
Google counts a page as good when 75% of visits load in under 2.5 seconds, react to a tap in under 200 milliseconds and shift by less than 0.1. The plugin checks all three on every real visit and shows pass or fail for each.
Will the plugin slow my site down?
No. The measuring script loads deferred from your own site, runs after the page is ready and sends one small report per page view.
Does it replace WP Rocket or LiteSpeed Cache?
No, it works alongside them. Your cache plugin changes how your pages load, and this plugin shows whether the change actually helped your visitors.
Why are my numbers different from PageSpeed Insights?
PageSpeed Insights tests one page once, on a simulated phone. The plugin shows what your real visitors got on their own phones and laptops, which is the data Google judges your site by.
Does it work without WooCommerce?
Yes, on any WordPress site. On a WooCommerce store it also recognizes product, category and cart pages, so Premium can split your speed by page type.
Will I get an email when my site gets slower?
Yes, on the free plan. The alert compares the last 7 days with the 7 days before and sends at most one email a week, plus the weekly report.
Do I need to change my cookie banner?
No. The plugin sets no cookies and stores nothing on the visitor's device, so there's nothing new to ask consent for.
What does the free plan include?
Real-visitor Core Web Vitals, your traffic, 7 days of speed and traffic history, the weekly report and the slowdown alert, up to 1,000 page views a day. Premium adds 180 days of history and the speed of each of your busiest pages.
Can I connect more than one site?
One CartHacker account monitors one site. Use a separate account for each site you want to watch.
Start monitoring your WordPress Core Web Vitals today
Free on every account, no credit card required.
Start free monitoringAre you using Shopify or another platform? Core Web Vitals Monitoring works with any store software