No viewport meta tag

The viewport meta tag tells mobile browsers how to scale the page to the width of the device screen. This check found no viewport meta tag in this page's head. Without it, mobile browsers render the full desktop-width layout and then zoom it out to fit, rather than adapting the layout to the phone's screen. This leaves text too small to read and tap targets too small to hit accurately on a phone, and Google directly penalises pages like this in mobile search rankings for failing its mobile-friendliness check, on top of the poor first impression it gives visitors. Your developer should add a viewport meta tag set to width=device-width, initial-scale=1 inside the head. This tag is standard in every modern web template, so it is usually only missing on pages that were hand-coded a long time ago. Budget about five minutes.