Can you suggest minifiers that improve performance and SEO?

[praneetharao0994]

I want to increase the performace of the application which is less than 40%, any minifiers that can be used here for the same?

[radominchev]

Hi @praneetharao0994 👋,

On Arc XP you generally don’t need to plug in your own minifier – PageBuilder Engine already uses Webpack to minify and tree-shake the bundle in non-local environments by default. Locally, this behavior is controlled by the MINIFY env variable:

MINIFY controls if Webpack should minify and tree-shake the final bundle. It defaults to false locally and is always enabled in non-local environments. Arc XP Environment Variables

So if your live site is showing a performance score below 40% (e.g. Lighthouse/PageSpeed), the bottleneck is usually not “missing minification”, but things like:

• Overall bundle size and heavy libraries
• Unused JavaScript loaded on pages that don’t need it
• Lack of code splitting / lazy loading for big features
• Images not optimized via Resizer v2
• Extra third-party scripts (tags, analytics, embeds)

Arc has a few docs that walk through concrete steps to improve this:

• How to optimize your PageBuilder Engine bundle size – using bundle analyzers, path imports, lighter libraries, static features, code splitting, caching, etc. link
• How to Reduce Unused JavaScript in Your PageBuilder Engine Bundle – patterns and best practices to avoid shipping JS that isn’t actually used on a given page. link
• Optimize your client-side bundle size by tree shaking your dependencies – more detail on making tree-shaking effective in your imports. link

If they share which parts of the page are heaviest (for example a specific block or library), you can then point them to code-splitting or static rendering for that feature and get much bigger gains than you’d get from just adding another minifier.

Best, Rado