Responsive Web Design is the least flexible approach in terms of addressing the needs of mobile visitors, including page weight and load speed optimization, and thus many online big-hitters craft mobile-centric experiences using either separate URLs or dynamic serving. In this article we explain the main differences between these two methods. We also describe some simple ways to test mobile setups that anyone can use.
Have you used Google’s Mobile-Friendly Test tool? If yes, you should know that this tool does not analyse every aspect of the website and therefore the test result is less important than you might think. Even if your website scored ‘Awesome!’ in the test some optimization might be required.