By all means run some tests on a real device, especially on real mobile devices. Mobile device simulation is a new, evolving technology and less reliable than desktop simulation. Mobile devices cost money, of course, so we suggest taking a look at the Open Device Lab initiative. You can also share devices if you want to test on many platforms without spending too much.
If you study my current site, you’ll see that most of my main sections link out to other places on the web – my YouTube channel, my podcasts, the speaking page here on College Info Geek, etc. This is a strategic decision – as a professional YouTuber/writer, those are the best places for me to be directing people, since I benefit from people subscribing to my content rather than evaluating it.
This is a massive plus of website builders compared to web developers. A web developer can cost between $300 and $1,000 for template customization alone, and a fully customized website built from scratch will often amount to thousands. Making your own website using a builder, meanwhile, allows you to get a fully functioning website up and running for less than the price of a coffee.