It’s actually fairly simple I think, but will probably lead you away from most modern client-side JS frameworks. - render the website on the server (with PHP,

It’s actually fairly simple I think, but will probably lead you away from most modern client-side JS frameworks. - render the website on the server (with PHP, Ruby, JS, Java, whatever you’re comfortable with) - deliver HTML and CSS only as far as possible - reduce JS to a minimum and stick to raw JS where possible (or use simple libraries like jQuery) - use native fonts wherever possible - rely on as few third party elements as possible (chats, popups, etc). You can’t control what they are doing/loading. Very unsexy way of doing web development but worked for me anytime I had to do a project for a client. Here’s a website of mine where I pushed my approach to the limit: https://www.pinhok.com/ https://www.pinhok.com/ (and yes, you could still produce nice designed websites with this approach, wasn’t the main target for me for this website for now)