Third Party Script Checker
Find external hosts and third-party scripts that can affect loading time, INP, privacy setup and stability.
Technical pre-testing without browser rendering. Own scores of 0–100 mean: higher = less recognized risk signals. No measured LCP, INP or CLS values. TTFB is measured on the server side.
Ideal for tracking setups, consent QA, AdTech, chat widgets, A/B testing and agency audits.
Results
Technical pre-checking of a URL. For a crawl over many URLs, use the premium audit.
Findings
Detailed hit
Practical example · for illustration
Remove an unused widget
Example: An old chat widget will still be integrated on each product page. Check accountability and actual benefits, remove the integration in the template or tag manager and test the important processes again.
What does not prove the result
Found hosts show integrations, no automatically measured runtime or data protection compliance. Providers loaded later via JavaScript or Consent may be missing in the static retrieval.
Deepen with PageSpeed Insights and available field data · Google's Definition of Core Web Vitals
What the Third Party Script Checker evaluated
The pre-check evaluates the retrieved HTML and a limited sample of linked resources. It does not execute JavaScript and does not simulate user interactions. Findings are concrete occasions for an examination in the browser; an inconspicuous result does not exclude performance problems.
From a single check to Core Web Vitals Audit
The audit examines multiple URLs and helps to find recurring technical patterns in templates. This way you can see if a change affects several pages and where you can start the implementation.
Questions about Third Party Script Checker
Are third-party scripts always bad?
No. However, they should be used consciously, loaded delayed and regularly checked for benefit and risk.
Does this fit in with the GDPR audit?
Yes. Performance and tracking risks often overlap with tag managers, analytics, ads, and consent triggers.
Why are there standalone tools in addition to the audit?
Individual tools help with a specific URL or technical problem. The audit compares these signals across multiple URLs and shows recurring patterns.
Is the individual check free of charge?
Yes. The standalone tools check a single URL. For larger crawls, complete tables and CSV export, the premium audit is planned.