Know where you stand with Google
See pass or fail for all three Core Web Vitals, from your real shoppers, judged exactly the way Google judges your store.
Core Web Vitals Monitoring Free
Pass Core Web Vitals and stay fast every day
Core Web Vitals Monitoring measures every real visit the way Google does and shows the results within minutes, while Google's own report averages the last 28 days. You'll also see your traffic and get a free weekly report, plus an email the week your store slows down.
- Free - no credit card required
- Speed and traffic in one report
- WordPress, Shopify and any other platform
Works on every store platform
- WordPress
- WooCommerce
- Shopify
- PrestaShop
- Magento
- BigCommerce
- Wix
- Squarespace
- Webflow
- Shopware
- Drupal
- Joomla
- Any website
Real numbers
Most online stores fail Core Web Vitals for mobile users
In August 2026, 39.5% of WooCommerce stores passed all three for mobile users, against 76.5% of Shopify stores and 53% of all websites. Core Web Vitals Monitoring tells you which side your store is on within minutes, counting visitors in every browser, while Google's data covers Chrome only.
From the CartHacker study of 1.58 million online stores, built on Google's Chrome UX Report and the HTTP Archive. Read the full study
What you get
Get Core Web Vitals Monitoring, traffic reports and alerts when your store slows down
Catch a slowdown the day it starts
A daily speed chart shows the exact day your store got slower, and an email alert tells you the same week.
Traffic stats without Google Analytics
See page views, visitors, devices and browsers right next to your Core Web Vitals, with nothing extra to set up.
See it in action
Your Core Web Vitals report on any platform, from WordPress to Shopify
Example
Example
Premium
Choose your platform
Core Web Vitals Monitoring for your platform
WordPress & WooCommerce
Install the plugin, press Connect and read the report right in WordPress. One click to set up, no coding.
Only 39.5% of WooCommerce stores pass Core Web Vitals for mobile users
See the WordPress pageShopify
Paste one line into your theme.liquid file and read the report in your CartHacker dashboard.
76.5% of Shopify stores pass Core Web Vitals for mobile users
Set up on ShopifyPrestaShop, Magento, Wix and more
Add one line to the site-wide header of PrestaShop, Magento, BigCommerce, Wix, Squarespace or any other website.
59.8% of PrestaShop stores pass Core Web Vitals for mobile users
Set up on my platformFree vs Premium
Free on every account. 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
How it works
Set up in three steps, then let the visits come in
- 1Add your storeSign in to CartHacker and type your store's address.
- 2Install the plugin or one lineWordPress gets the free plugin, every other platform one line of code.
- 3Open your store onceThat first visit switches your report to live data.
Common questions
FAQ
Is Core Web Vitals Monitoring really free?
Yes. Real-visitor Core Web Vitals, your traffic, 7 days of speed and traffic history, the weekly report and the slowdown alert are free on every account, up to 1,000 page views a day. Premium adds 180 days of history and the speed of each of your busiest pages.
Will it slow my store down?
No. The script loads with defer, so your page never waits for it, and it sends its data as the visitor leaves.
Do I need to change my cookie banner?
No. Nothing is stored on the visitor's device: no cookie, no local storage and no fingerprint, so there's nothing new to ask consent for.
How is it different from the Store Speed Test?
The Store Speed Test is a one-time report on one page, built from Google's data and a PageSpeed Insights lab test. Core Web Vitals Monitoring measures every real visit, every day, so you see a slowdown the week it starts.
Which platforms does it work on?
WordPress and WooCommerce through the free plugin, and Shopify, PrestaShop, Magento, BigCommerce, Wix, Squarespace or any other website through one line of code in the site-wide header.
Start monitoring your Core Web Vitals today
Free on every account, no credit card required.
Start free monitoring