Analytics & Data
Sonar
Free website tracking checker that scans any site and reports what's really tracking, with validated findings and a scored report
Sonar fact sheet
| Community votes | 0 |
|---|---|
| Founded | 2019 |
| Stage | Established |
| Based in | London, United Kingdom |
| Website | dolphinanalytics.co.uk |
Sonar metrics
Vendor metrics for dolphinanalytics.co.uk: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.
- Domain Rating
- 27
- no change since last check
- Trust Flow
- 23
- no change since last check
- Citation Flow
- 28
- no change since last check
- Referring domains
- 123
- no change since last check
- External backlinks
- 1,500
- no change since last check
Vendor Domain Rating (Ahrefs) checked 16 Oct 2026, spec changed 10 Oct 2026. Vendor topic: Arts/Music (23). Vendor Majestic data checked 10 Oct 2026, spec changed 10 Oct 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Sonar scans your website from outside and reports what tracking is running—GA4, Google Tag Manager, ad pixels, and consent setup—with evidence for every finding
Overview
The Sonar homepage
Sonar is a free website tracking checker that crawls your site the way a visitor's browser sees it and detects every tag and pixel that fires. It checks Google Analytics 4, Google Tag Manager containers, Meta and other ad platform pixels, dataLayer events, and consent setup, then produces a scored tracking health report with validated findings.
The scan requires no account, nothing to install, and no access to grant. It works from the outside exactly as a visitor's browser sees your site, and form inputs are never recorded. You can unlock the full report by providing an email address.
Sonar covers the ground that a manual tracking audit starts with: what's installed, what's firing, what's broken and what's missing. Every finding includes evidence from the crawl, so the report only claims what it can prove. This makes it an automated first pass of a tracking audit that normally takes an expert hours to complete.
Capabilities
- Scans GA4 presence and firing status
- Maps Google Tag Manager containers and what they're loading
- Detects Meta and ad platform pixels
- Crawls dataLayer events page by page
- Analyzes consent setup and tag interaction
- Produces tracking health score
- Validates findings with evidence from crawl
- No installation or account access required
Pricing
Pricing model: Free
Compare and explore
See the alternatives to Sonar, Vidanalyze vs Sonar, AirScore™ vs Sonar, New Site Radar vs Sonar, SigNoz vs Sonar, more in Analytics & Data or startups in United Kingdom.
Buyer questions
What is a website tracking checker?
A website tracking checker scans a site from the outside and reports what analytics and marketing tags are actually running. Sonar checks GA4, Google Tag Manager, ad platform pixels, dataLayer events and consent setup, then scores your tracking health and only reports problems it can prove from the crawl.
How do I check if Google Analytics is working on my site?
Paste your URL into the scan and Sonar crawls your site the way a visitor's browser sees it, reporting whether GA4 is present and firing with evidence attached. Nothing to install and no access to grant.
Is the scan really free?
Yes. The scan is free and needs no account. An email address only unlocks the full report.
Is it safe to scan my site?
Yes. Sonar works from the outside exactly as a visitor's browser sees your site, so there is nothing to install and no account access to grant. Form inputs are never recorded.
How is Sonar different from Google Tag Assistant?
Tag Assistant inspects Google tags in your browser on pages you visit, while you watch. Sonar scans the whole site from outside, covers non-Google pixels too, and turns findings into a scored report you can act on or share.
Leave a review for Sonar
No customer reviews of Sonar yet. Write the first. Customer reviews are free and nobody can buy them.
Sonar has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
Compare with
| # | Product | DR | Votes |
|---|---|---|---|
| 1 | Hidden SystemsAI-powered intelligence products for financial markets and complex social systems | 3 no change since last check | 0 votes. Log in to vote for Hidden Systems as a buyer |
| 2 |  VidanalyzeAI-powered YouTube analytics platform with competitor tracking, SEO tools, and revenue estimation for creators and agencies |
2 no change since last check | 0 votes. Log in to vote for Vidanalyze as a buyer |
| 3 |  AirScore™Check air quality and nearby pollution sources for any address |
2 +2 (up) since last check | 0 votes. Log in to vote for AirScore™ as a buyer |
| 4 |  New Site RadarGrowth intelligence platform tracking AI tool sites registered in 2025 or later, showing traffic gains, channels, and revenue signals with verified sources. |
5 +1 (up) since last check | 0 votes. Log in to vote for New Site Radar as a buyer |