Catalog · Duplicate Code · Notice

Duplicate JavaScript

Multiple script bundles ship the same code, wasting bandwidth and parsing time.

Check ID DUPLICATE_JS_CODE · Category Duplicate Code · Available on every plan

Sec. CD.01 · Detail ◊What, why, how reference content · updated continuously

How to fix it

Deduplicate via a shared chunk, externalise common dependencies, or audit your bundler split-chunks config.

Sec. CD.02 · Related ◊Sibling checks in this category 1 related

Wrendex catches duplicate javascript on every audit. No credit card · All 170+ checks · Full PDF report