Free Website Tracking Checker
Sonar is a free website tracking checker: scan any site and get a first-pass web
About Free Website Tracking Checker
Sonar is a free website tracking checker that scans your site and reports what tracking is actually running, including GA4, Google Tag Manager, ad pixels, and dataLayer events. It provides a first-pass tracking audit with evidence for each finding, no account or installation required. Designed for website owners and marketers who need to verify their tracking setup.
What makes it different
Only reports problems it can prove from the crawl, providing validated findings rather than assumptions based on plans.
Highlights
Want your product in here?
Scan your site and we list it at the same time. Free, and it is live the moment the scan finishes.
Add my productOr find out what to do after you are listed.
Paste your URL. We read your site, check it against 12 rules and rank a backlog of growth plays for your product, each one costed in hours and dollars before you start. The checks and the whole ranked list are free. Growth opens every play for $29 a month.
Build my free planNo card to see your plan. No countdowns, no spots left.