Find scrips that bring down your Core Web Vitals scores
Core Web Vitals Inspector Extension
Is your Core Web Vitals performance being harmed by the scripts embedded in your website?
Core Web Vitals Inspector helps you quickly identify which scripts are causing issues with your CWV scores, and shows the real time impact on CLS, FID and LCP.
Run Core Web Vitals tests with any combination of on page scripts disable and see how each vitals score is impacted.
Free unlimited tests on up to three domains. Affordable pro upgrade available for agencies and freelancers needing to test unlimited websites.
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Core Web Vitals Inspector helps you quickly identify which scripts are causing issues with your CWV scores, and shows the real time impact on CLS, FID and LCP.
Run Core Web Vitals tests with any combination of on page scripts disable and see how each vitals score is impacted.
Free unlimited tests on up to three domains. Affordable pro upgrade available for agencies and freelancers needing to test unlimited websites.
Source Manifest.json
{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "Core Web Vitals Inspector", "description": "Find scrips that bring down your Core Web Vitals scores", "version": "1.0", "options_page": "options.html", "browser_action": { "default_icon": "icon.png", "default_popup": "popup.html" }, "content_scripts": [ { "matches": [ "https://*/*", "http://*/*" ], "js": [ "js/lodash-debounce-custom.js", "js/vitals.js" ] } ], "background": { "scripts": [ "js/vendor.js", "js/background.js" ], "persistent": true }, "web_accessible_resources": [ "js/web-vitals.js", "js/vitals.js" ], "permissions": [ "webRequest", "webRequestBlocking", "tabs", "storage", "http://localhost:5000/", "http://*/*", "https://*/*", "https://www.googleapis.com/pagespeedonline/v5/runPagespeed?*" ], "content_security_policy": "script-src 'self' https://www.googleapis.com; object-src 'self'"}
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