Mobile cannot be evaluated from a smaller browser window
Responsive-mode in development tools is useful, but it does not reproduce all the behavior of a real smartphone: system keyboard, autocomplete, application switching, weak network and browser restrictions. If a significant part of the traffic is mobile, the path must be taken on a real device.
Check the first screen
On a small screen, overload is particularly rapid. The user needs to know where he is and what to do next, without five screens of introductory text.
Check it out.
- Does the CTA banner close?
- Is the menu leaving?
- Whether the main wording is read;
- Is there a horizontal scrolling?
- Does cookie/age/pop-up take up most of the viewport?
- Do you know where the button is going?
Registration form – a frequent source of losses
| Problem. | How does it manifest? |
|---|---|
| wrong-field | It opens an uncomfortable keyboard. |
| phone mask not wearing GEO | Users do not understand the format |
| mistake | repeat the action and cast the form |
| too-small areas | slip-ups |
| loss of input | After the return, you have to start again. |
It’s more useful to write down a specific problem than to say “mobile UX is weak.”
Speed is important in the areas.
General Lighthouse-score doesn't always explain the loss. See when the user first sees useful content and when the button becomes available. A heavy hero, video, or third-party script can delay the first step.
If you have analytics on real users, compare devices and connection types. If not, at least test the web-limited page.
Redirects and Opening External Applications
On mobile, transition chains are more sensitive. Some browsers block unexpected tab openings, and a return from the application can lose a session. Go through the affiliate link in full: site → registration → payment scenario → return.
Segment not only mobile/desktop
It is useful to see separately iOS/Android, browsers and large resolutions. Sometimes the overall mobile CR drops due to one particular combination of device and browser version.
What to do if mobile is weaker
- Find the first stage where there is a difference.
- Check for technical errors at this stage.
- Make sure that creative and landing are the same.
- Check speed and shape.
- Run a single change, not a complete redesign.
- Compare the results in the same segment.
Conclusion
Mobile optimization is not a separate version of the site, but a check of the real path of the user. Related material: What to check if desktop is noticeably stronger than mobile.
