Free WordPress diagnostic plugin
IndexLane Core Web Vitals Asset Snapshot
See which scripts and styles appear in your page HTML, where they come from, and which third-party files may need a closer performance check.
Your data
Runs inside WordPress
Only an administrator can run checks. Requests stay on your website. Scan results are not stored, and the plugin adds no scheduled jobs, visitor tracking, or telemetry.
Features
- Fetches selected same-site URLs from a WordPress admin screen
- Lists CSS and JavaScript files found in the returned HTML
- Counts scripts and styles
- Identifies WordPress plugin and theme asset paths
- Lists external asset domains
- Flags obvious heavy third-party scripts for review
- Exports a CSV report for the current run
Limitations
- Calculate a Core Web Vitals score
- Run Lighthouse or PageSpeed Insights
- Infer ranking or conversion impact
- Generate critical CSS, compress images, or change site content
- Replace browser traces, field data, server logs, or a full crawl
The report lists files found in page HTML. Use browser performance tools to check whether a listed file actually causes a loading or interaction problem.