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Sonar vs OnyxMetric

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sonar compared with OnyxMetric
DetailSonar logo SonarOnyxMetric logo OnyxMetric
What it doesFree website tracking checker that scans any site and reports what's really tracking, with validated findings and a scored report Not given
StageEstablished Not given
Founded2019 Not given
Based inGB US
Pricing modelFree Freemium
PricingNot given Base: $99/month or $990/year per site. Plus: $199/month or $1990/year per site. Pro: $299/month or $2990/year per site. Enterprise: Custom pricing. Annual billing provides 2 months free.
Key features
  • 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
  • Session replay to watch real user sessions and identify pain points
  • Conversion funnels to visualize where visitors drop off
  • Web Vitals monitoring for Core Web Vitals from real visits
  • User journeys to follow the paths visitors actually take between pages
  • Error tracking to catch JavaScript errors with full context
  • Realtime data with no sampling or delay
  • Custom events to track sign-ups, purchases, downloads, and interactions
  • Automatic bot blocking to filter out bots and crawlers
  • Dashboard sharing with public and private link options
  • Full REST API to query data and build custom integrations
What makes it different
  • Scans entire website from outside, not just pages you visit
  • Covers non-Google pixels in addition to Google tags
  • No login, installation, or data access needed
  • Delivers automated first-pass tracking audit in minutes
  • One unified, readable dashboard instead of 150+ confusing reports
  • Cookieless and GDPR compliant with no consent banner required
  • Fully managed infrastructure with no hosting, patching, or maintenance required
  • Setup in minutes with just one script tag added to your site
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)27 no change since last check22 −3 (down) since last check
Trust Flow (Majestic)234
Citation Flow (Majestic)2821
Referring domains (Majestic)12311

4 details filled in for both companies.

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