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Responsive Website Tester

Responsive Website Tester

Responsive Website Tester

Responsive Website Tester

Test your website across multiple screens, all at once!

A website can look perfect on one screen and completely different on another. Testing every device size individually takes time and can make small responsive design issues easy to miss.

The Responsive Website Tester makes this process simpler by letting you view your live website across up to five different screen sizes at the same time. Choose from desktop, tablet, and mobile sizes or define a custom size to see how your website responds across different displays.

With synchronized scrolling, you can move through the page across your selected screens together, making it easier to compare layouts and identify inconsistencies as you go.

See how your website responds across different screens, catch UI anomalies, and deliver a more consistent experience on every device.

Test Multiple Screen Sizes Side-by-Side
Test Multiple Screen Sizes Side-by-Side

Preview your website across up to five screen sizes at once. Select desktop, tablet, and mobile dimensions or use a custom size to test the responsive layouts that matter to you.

Compare Your Website as You Scroll
Compare Your Website as You Scroll

Scroll through your selected screens simultaneously to compare the same areas of your website and quickly spot misplaced elements, layout changes, or other responsive UI issues.

Stop checking responsive layouts one screen at a time and see the complete picture in one place.
Make responsive testing faster, simpler, and easier to compare with WP Site Checker

Still Not Convinced? Well don’t take Our word for it, hear it from other impassioned Web Developers like you;

Saad

I’ve been using the Site Checker: All-in-One QA Testing plugin for a while now, and honestly, it’s been super handy for keeping my WordPress sites in check. It does a great job combining all the essential QA stuff — from speed and performance tests to broken link detection and basic security checks — all in one clean dashboard. The best part is that it actually saves me from switching between multiple tools, which used to be such a pain. The reports are clear, easy to understand, and give enough detail to act on quickly. It’s not overloaded with features, just practical and to the point. Perfect for anyone who wants a reliable, time-saving way to monitor their site’s overall health.

5-star rating

Akhter

I really like how this plugin handles all the essential QA tests in one place from performance to basic security. It saves me a lot of manual work. If they add a one-click fix option for common issues, it’ll be even more powerful.

5-star rating

Ayesha Khan

Site Checker: All-in-One QA Testing has been a fantastic addition to my WordPress toolkit. It quickly detects broken links, analyzes performance, and performs essential security checks. everything I need in one place. It would be even better if it also included accessibility testing and checks for both internal and external links. Plus, a scheduling feature for automatic weekly scans and fixes would make it absolutely perfect!

5-star rating

Samad

Automating my WordPress site’s health checks has been a total game-changer. I used to spend hours manually checking for plugin conflicts and database bloat, but this automated system handles everything—from real-time security scans to performance monitoring—without me lifting a finger. The weekly health reports are clear and actionable, ensuring my site stays fast and secure. If you value your time and want to avoid the ‘white screen of death,’ this is a must-have

5-star rating

Maalikh

The page speed reporting section in WordPress Site Checker is genuinely useful. Instead of only showing performance scores, it highlights specific areas that may be slowing down the site and gives clear direction on what can be improved. It makes optimization much easier to understand and act on. Many tools tend to throw metrics at users without providing meaningful or actionable insights, but this tool does a much better job of keeping the feedback practical.

5-star rating

Okasha

This plugin is very useful for checking the overall health of a WordPress website. It helps find issues like broken links, performance problems, and other common errors in one simple dashboard. Easy to use and a great time saving tool for website monitoring.

5-star rating

Frequently Asked Questions

Confused About How to Go about Setting up WP Site Checker or how to navigate it?

Don’t fret at all! Not only do we have quite a bit of documentation that covers the plugin from A-to-Z, but also feel free to browse our FAQ Section below! And if you’re still having trouble we always welcome our customers reaching out and asking questions, remember we want YOU to have the smoothest experience possible when it comes to your website.

WP Site Checker is an excellent plugin for web developers, professional or amateur, looking to take their maintenance practices to the next level. A veritable toolbox of everything you need from initial development to testing and maintenance. While you don’t need a comprehensive base of development and coding knowledge, we do recommend you at least know the basics of website development, so you know the purpose of the menagerie of functions this plugin provides you with. Beyond that, basically anyone can use this plugin!

Not at all! WP Site Checker is made with simplicity and ease of use in mind. Basically every function can be toggled on and off from the corresponding menus, no jiggling needed with code or self-applied fixes. Beyond this though the purpose and how to use every function can be found in the little question mark box on the top-right of the corresponding function. So you should have absolutely no issues.

Not at all! WP Site Checker is a light tool and has virtually no functions that should slow down your website in the slightest. Most of its functions are based in maintenance regardless, and chances are your website is either not active, or unlisted for maintenance during the time it is in use. Even if you’re online during maintenance though, users should see no dip in the speed of your site’s pages.

WP Site Checker is compatible with nearly all 3rd party WordPress plugins, except ones that aim to do what we already provide functions for. So any other extensions that aim to maintain your site using functions we already provide are a no go, all other plugins are are completely fine to use and shouldn’t affect the plugin in the slightest, especially theme or aesthetic extensions!

Absolutely! Beyond our documentation, we are also available to answer any questions you have about the functionalities and capabilities of WP Site Checker, we want to make sure you have a smooth experience using this plugin and will do what we can, to the best of our abilities, to help you out. Feel free to contact us if you encounter an issue, or have a question that is not listed, within the provided documentation!