Senff - a11n

<h4>Summary</h4>
The Smooth Page Scroll Up/Down Buttons plugin for WordPress adds buttons to every page of your site, that can be used to (smoothly) scroll up or down exactly one screen/page at a time. This can be particularly handy for pages with a lot of text/content, or in cases wherever a browser’s scrollbar is just not good enough (or not present at all, like on tablets) to enable one-click, one-screen scrolling.
BONUS BUTTON! Optionally, you can add a “Back to top” button, that will take the visitor right back to the very top of the page.
No knowledge of any coding (HTML, CSS, JavaScript, PHP) is required at all.
<h4>Features</h4>
<ul>
<li>Button positioning: choose between three options of where you want the buttons to appear — next to eachother at the bottom right, on top of eachother at the bottom right, or one at the top right and the other at the bottom right.</li>
<li>Scrolling distance: scroll a full page with each click, half a page, or however far you want.</li>
<li>Button size: choose the size of the buttons.</li>
<li>Scrolling speed: set the speed at which pages should scroll from one page to another.</li>
<li>‘Back to top’ button: optionally, include an additional button that takes the user back to the very top of the page.</li>
</ul>

Smooth Page Scroll Up/Down Buttons

Smooth Scroll Page Up/Down Buttons adds buttons that enables your site visitors to easily scroll up or down one screen/page at a time.

Syam Mohan

Enhance user experience and site navigation with a lightweight, customizable “Scroll to Top” button. This plugin adds a smooth-scrolling button that appears as users scroll down the page and disappears when they return to the top.
Designed for speed and seamless integration, it works with any WordPress theme and includes options for custom icons, button position, color, animation, and intelligent display rules. No coding required—just install and configure in minutes.
Perfect for blogs, long-form articles, eCommerce sites, or any website where easy navigation improves usability.
<h3>Key Features & Customization</h3>
<ul>
<li>Intelligent Display: Automatically appears as users scroll down, then disappears when at the top.</li>
<li>Smooth Scroll Animation: Provides a fluid and pleasant “back to top” experience.</li>
<li>Flexible Destinations:
<ul>
<li>Internal Page Scroll: Link the button to any specific element within the current page.</li>
<li>External Page Redirection: Redirect users to any other page or URL.</li>
</ul>
</li>
<li>Customizable Button Design:
<ul>
<li>Choose between text, custom image (PNG/SVG), or Font Awesome icons.</li>
<li>Use any image URL for complete branding control.</li>
</ul>
</li>
<li>Responsive Control:
<ul>
<li>Mobile-Friendly: Option to hide the button on smaller devices/windows for better mobile UX.</li>
<li>iFrame Compatibility: Ensures it doesn’t appear inappropriately within iframes.</li>
</ul>
</li>
<li>Targeted Visibility: Easily show or hide the button on specific pages or posts.</li>
<li>Temporary Display: Auto-hide the button after a set duration for a cleaner interface.</li>
<li>Optimized Performance: Utilizes Async JavaScript to ensure fast page loading.</li>
<li>Accessibility Focused: Built with ARIA labels and screen reader text for inclusive navigation.</li>
<li>SEO-Friendly Markup: Employs semantically correct HTML elements for optimal search engine and accessibility performance.</li>
<li>Optimized Performance: Adds functionality without slowing down your site.</li>
<li>Easy-to-Use Admin Panel: Configure all settings intuitively from your WordPress dashboard.</li>
</ul>

WPFront Scroll Top

I'm curious, why did you choose to insert the <div> element into the DOM with some JS to handle scrolling. No keyboard focus, no accessible label/name/content, no HTML semantics, no ARIA to fix this.In fact DO NOT use ARIA to override./hide your problems. The best ARIA is no ARIA. Use an <a> element, it's also quick to write and has it all by definition. You can easily add span inside the link element with translatable content and hide it visually with "sr-only" class (from Bootstrap). You could detect the first link on the page and make it an anchor if there's no id attribute.

Keyboard inaccessible, bad HTML. WCAG fails immediately.

Adds a lightweight and smooth "Scroll to Top" button to your WordPress site, improving navigation and user experience with customizable options.

Smooth Page Scroll Up/Down Buttons vs WPFront Scroll Top