Google prioritizes 'Mobile-First Indexing,' meaning that during indexing, they focus on the mobile version of your website before the desktop version. As mobile devices are responsible for the majority of search traffic, it's important to optimise your site for mobile devices. Here are some best practices.

Implementing a responsive layout design is essential for mobile-friendly best practices. This approach ensures that your website adapts seamlessly to various screen sizes and orientations, providing users with a consistent and visually appealing experience across devices.

Having a responsive design means that the layout is flexible, and the website detects screen size and orientation automatically. It also means that the website's user experience is similar across all browser and device types and that you only need a single URL to access the page on multiple devices (also known as dynamic serving).

Fast-loading pages are crucial for mobile-friendly websites, especially considering that some mobile networks can be quite slow (3G). Optimize your site's performance by minimizing HTTP requests, leveraging browser caching, and reducing unnecessary scripts to keep load times short. There are many other factors that determine a website’s loading speed and can be tested using Google’s PageSpeed Insights tool.

By default, images or photographs can be high resolution and are not ideal for web consumption. To optimize these images for the web, resize and compress them to strike a balance between visual quality and fast loading. The smaller the file size, the faster the user can load the image on their device. This practice helps maintain a snappy mobile experience while preserving the visual appeal of your content.

Popups can be highly disruptive on mobile devices, causing inconvenience to users. When a user finds a website in Google to answer their question or learn more information, the last thing they want is to be interrupted by something other than what they are expecting. Minimize or eliminate intrusive popups to enhance user engagement and reduce bounce rates.

Ensure that buttons and interactive elements are appropriately sized for touchscreens. Mobile elements may need to be adjusted from the desktop version to allow for a slightly larger size. This makes navigation easy and prevents accidental clicks, especially for those with bigger fingers!

Choose fonts that are legible on small screens and adjust font sizes to maintain readability. Avoid using tiny text that requires users to pinch and zoom. If the website is mobile responsive, then the text should automatically flow & resize to fit tablet & mobile screen sizes.

Large blocks of text make reading difficult and hard to skim, especially when they are using their mobiles when busy and they need quick answers. Break up content into smaller, digestible chunks and use headings, bullet points, and concise paragraphs to make it easier for users to scan and absorb information on mobile devices.

Increase the spacing between links to prevent users from tapping the wrong one by mistake. This helps improve the overall user experience and reduces frustration. This is especially important because everyone has varying finger dexterity.

Make calls to action (CTAs) straightforward and easily accessible. Users should immediately understand what action to take without confusion. Having too many mixed calls to action can confuse users, resulting in none being taken.

Simplify your website's navigation and menus for mobile users. Use intuitive icons and concise menu items to help users find what they need effortlessly. It’s common on mobile devices for main menus to be located under a dropdown icon which looks like three layered lines. Also, avoid having more than one level of submenu to reduce the number of taps the user needs to do to find the page they want to go to.

Regularly test the website on various mobile devices and browsers to ensure consistent functionality and appearance. Address any issues that may arise on specific platforms. If hardware is scarce, then there are virtual device testers online, such as BrowserStack.

Streamline forms for mobile users by reducing the number of required fields and using mobile-friendly input methods (e.g., date pickers). This simplification encourages user engagement and increases conversion rates.

Adhering to Google's Page Experience Update is crucial for SEO and user experience, so be sure to review the Core Web Vitals and page experience signals help pages for more information.