IndexLane Asset Weight Snapshot

A WordPress plugin for checking the CSS and JavaScript your pages reference, measuring the files it can fetch, and comparing the results over time. Useful when you want to see what a plugin update or site change has added.

DownloadVersion 0.2.0

IndexLane Asset Weight Snapshot plugin page

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IndexLane Core Web Vitals Asset Snapshot

About IndexLane Asset Weight Snapshot

A page can look exactly the same after an update while picking up another stylesheet, a larger script, or a few extra files. After several plugins have had their turn, it helps to have something concrete to compare.

Asset Weight Snapshot checks up to ten pages you choose. It finds linked stylesheets and scripts, includes inline CSS and JavaScript, and groups the measured sizes by page, resource type and source. Where the file paths make it clear, it connects those resources to WordPress itself, a theme or a plugin.

You can see which assets appear across the pages you scanned and which belong to particular pages. That gives you a starting point for investigating why a fairly simple page is referencing so much stuff.

Take a snapshot before making a change, then run another afterwards. The plugin compares it with the previous scan, so you can see how the CSS and JavaScript weight has changed. Stored results can also be exported to CSV without running the scan again.

The measurements come from requests made by your server. Browser loading time, JavaScript execution and Core Web Vitals need separate testing. This gives you the asset inventory and size comparison to help with that investigation.

Third-party resources are listed, with fetching them switched off by default. If a request fails or a scan reaches one of its limits, the report marks the missing information so you can see how complete the snapshot is.

Release history

Version 0.2.021 Jul 2026

Changed the displayed name to IndexLane Asset Weight Snapshot and documented the non-CWV product contract.
Split URL policy, page fetching, HTML discovery, asset fetching, ownership, persistence, report building, scan orchestration, and admin UI into focused classes.
Added resumable three-resource AJAX batches and explicit scan/resource limits.
Added stored versioned scan evidence, retention, comparisons, and direct stored CSV export.
Added returned/decoded bytes, server Content-Length, response headers, redirects, completeness, and complete-body SHA-256.
Added inline assets, document order, head/body placement, loading attributes, ownership attribution, byte aggregates, coverage, and probable blocking candidates.
Disabled third-party measurement by default and removed count-based OK/warning judgments.

External download

Download 0.2.0

Version 0.1.017 Jul 2026

First public release of IndexLane Core Web Vitals Asset Snapshot.

Highlights

Scan up to 10 same-site URLs per run.
List CSS and JavaScript assets found in returned HTML.
Identify plugin- and theme-origin assets.
Report external asset domains.
Flag common heavy third-party scripts.
Export results as a formula-safe CSV file.
Block off-site targets and off-site redirects.
Store no scan history and make no frontend changes.

External download

Download 0.1.0

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