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Learn what improvements can have the greatest impact on your site's performance

Analyze
  1. We download and modify your code to use performance best practices
  2. Run Lighthouse on the modified page, to measure the impact on performance

Testing uses Google PageSpeed Insights for mobile

Partytown šŸŽ‰ highlighted in Smashing Magazine

"Builder.io aims to make high performance the default. Partytown is pivotal in making near-zero-JavaScript websites attainable for anyone."

Steve Sewell, Builder's CEO on Smashing Magazine

Read More

Why does performance matter?

Put simply: slow sites deter visitors, costing conversions

Every 100ms faster ā†’ 1% more conversions

For Mobify, every 100ms decrease in homepage load speed worked out to a 1.11% increase in session-based conversion, yielding an average annual revenue increase of nearly $380,000.

50% faster ā†’ 12% more sales

When AutoAnything reduced page load time by half, they saw a boost of 12% to 13% in sales.

20% faster ā†’ 10% more conversions

Retailer Furniture Village audited their site speed and developed a plan to address the problems they found, leading to a 20% reduction in page load time and a 10% increase in conversion rate.

40% faster ā†’ 15% more signups

Pinterest reduced perceived wait times by 40% and this increased search engine traffic and sign-ups by 15%.

850ms faster ā†’ 7% more conversions

1 seconds slowness ā†’ 10% less users

The BBC found they lost an additional 10% of users for every additional second their site took to load.

Source: web.dev

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