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Did you know? · No. 16 · Fun fact ·

A 0.1-second mobile speed gain was linked to up to 10.1% more conversions

A Status Is UP card showing “10.1%” and the line “Travel conversion gain tied to a 0.1-second mobile speed improvement.”

Small mobile speed changes can show up in the checkout. In Deloitte Ireland’s 2020 report, commissioned by Google, a natural 0.1-second improvement in mobile site speed was linked to retail conversions increasing 8.4% and travel conversions increasing 10.1%.

Those results came from a 4-week analysis of retail, travel, luxury and lead-generation sites in Europe and the US. The study tracked four speed metrics across the journey, so treat the figures as evidence that small, consistent improvements can matter—not as a guaranteed lift for every site.

For a website owner, this is a reminder to protect the fast moments around product pages, forms and checkout. A performance budget turns speed from a nice-to-have into a release requirement.

Try this on your site

Set a mobile performance budget this week: choose a Largest Contentful Paint target, a JavaScript weight limit and a page-weight limit. Test a product or contact page before publishing changes, and keep the release within that budget.

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Each fact is checked against the primary sources listed. Spotted an error? Email the Status Is UP team. Status Is UP helps owners improve their sites; it is not an uptime monitor. For live outage status, see Status Is Down.