What does the tap targets & readability check look for?
It looks at whether the page is comfortable to use on a touchscreen. Specifically:
- Tap target size — whether buttons, links and form controls are large enough to tap accurately (around 48×48 px).
- Spacing — whether interactive elements are spaced so users don't hit the wrong one.
- Font readability — whether body text is large enough (roughly 16 px and up) to read on a phone without zooming.
Adequately sized, spaced tap targets and legible text passes; some small targets or text is a warning; cramped controls or text too small to read on mobile is a fail.
How is it evaluated, and how is it scored?
GEObubbly inspects the page's interactive elements and text sizing for mobile usability. It's an extended Performance & Mobile UX check that runs partially, since assessing tap targets and readability depends on the live rendered layout.
Why tap targets and readability matter for SEO and GEO
Once a page is sized correctly with a viewport tag, the next question is whether it's actually comfortable to use on a touchscreen — and two things decide that. Tap targets: buttons, links and form fields need to be large enough (a common guideline is around 48×48 pixels) and spaced apart enough that users tap the right one with a fingertip rather than fat-fingering a neighbour. Cramped navigation and tightly-packed links are a frequent source of mobile frustration. Readability: body text should be large enough to read without pinch-zooming — roughly 16 px and up — with enough line-height and contrast to be legible on a small screen in varied lighting. Both feed Google's mobile-usability assessment, and since the mobile version is what's indexed, a page that's awkward to use on a phone is judged on that awkwardness. These are also accessibility wins: larger targets and legible text help everyone, including users with motor or vision differences. For GEO, the benefit is a healthier landing experience for the visitors AI citations send you.