---
title: "Free responsive test: your site on mobile, tablet and desktop · Web Booster"
description: "See your website on a phone, tablet, laptop and desktop at the same time. Enter the address and check how each screen adapts, free and with no sign-up."
canonical: "https://webbooster.com.co/en/prueba-responsive/"
---

[Home](https://webbooster.com.co/en/) Responsive test

Free tool

# Your site on every screen

Enter a website address and see it on a phone, tablet, laptop and desktop at the same time. You can browse inside each screen.

Website address

View on every screen

Free, no sign-up. Some sites don’t allow being shown inside other pages; if that happens, we’ll tell you. Try it with webbooster.com.co

This site doesn’t allow being shown inside other pages

Is it your site? We can make it viewable in this test without removing the protection. [WhatsApp →](https://api.whatsapp.com/send?phone=573248754453&text=Hi%2C%20I%20used%20the%20Web%20Booster%20responsive%20test%20and%20I%E2%80%99d%20like%20you%20to%20review%20how%20my%20site%20looks%20on%20mobile.)

Desktop 1920 × 1080

Laptop 1440 × 900

Tablet 820 × 1180

Phone 390 × 844

Open in a window of this size: DesktopLaptopTabletPhone

Copy link to this test

Why it matters

## Most of your visitors arrive on a phone

A site that looks fine on your computer can break on a 390-pixel screen. These are the issues we see most often:

### Tiny text and buttons

If people have to zoom to read or tap a button, they leave. On a phone, buttons need room for a finger.

### Content wider than the screen

Tables, images or menus wider than the phone cause sideways scrolling and make the site feel neglected.

### The important part ends up below

On desktop the contact button is visible right away; on a phone it can sit three screens down. Check what people see first.

FAQ

## About the responsive test

What is a responsive website?

It’s a site that adapts its layout to the screen size: it rearranges columns, resizes text and images and changes the menu so it reads and works well on phones, tablets and desktops without zooming.

Why does my site show up blank or with a notice?

Some sites send a security instruction (X-Frame-Options or Content-Security-Policy) that prevents them from being shown inside another page. It’s a normal anti-fraud protection. In that case you can open the site in a window sized like each device with the buttons below.

Is this the same as viewing the site on a real phone?

It shows the site at the real width of each screen, which is what decides how the layout adapts. A real phone can differ in details such as the browser bar, system fonts or connection speed.

Do you store anything about my site?

No. We only check whether the site allows being shown inside another page; your own browser loads the content and nothing is stored anywhere.

## Your site doesn’t look right on mobile?

We’ll review it with you and tell you what to fix first. You can also check how visible it is on Google and ChatGPT with the free audit.

[Chat on WhatsApp](https://api.whatsapp.com/send?phone=573248754453&text=Hi%2C%20I%20used%20the%20Web%20Booster%20responsive%20test%20and%20I%E2%80%99d%20like%20you%20to%20review%20how%20my%20site%20looks%20on%20mobile.) [Run the free audit](https://webbooster.com.co/en/diagnostico-web-gratis/)