6. Optimize Your Speed
To increase the loading speed of your web pages, you have first to optimize your server for those pages. This means you need to reduce the number of HTTP requests and cache your site.
You should also avoid using too many fonts, and images as these will slow down your website's loading. It's a good idea to use smaller fonts. Make sure that your CSS files are optimized for speed.
Your website's speed is a significant ranking factor in search results. It can make or break your business. If your website is slow, visitors will bounce and not stick around. Keeping the speed of your website as fast as possible is essential for your SEO and marketing efforts.
You can use Google's Mobile-Friendly Test tool to ensure that your site is mobile-friendly. This is important because your site's speed will affect your visitors' experience.
Using good themes that load quickly will help. If the developer did a poor job, this would also affect your domain authority.
Here is a bit of training I did for on-page SEO that may help your readers SEO On-Page Optimization Checklist - Beginners Tool To Get Traffic