The web is continuously evolving and today we have millions of sites on the web and several users waiting to load these sites for one reason or...
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Don't forget about HTTP/2! If your server platform supports it, the number of HTTP requests becomes less relevant. With CDNs and proxies, I have been bitten before by not reading the documentation or thoroughly understanding the platform I was using...the CDN and the web server had some opposing configuration settings which resulted in either a lot of wasted CPU cycles (CDN not supporting caching of resources encrypted by anything but gzip) or safe but effectively useless HTTP cache policies.
I have also learned to give extra scrutiny to third-party marketing/analytics scripts. I have seen plenty of scripts that refuse to be cached and insist on downloading several other scripts. In general, most of the organizations I have worked with are underutilizing their current analytics capabilities...throwing more analytics scripts on the page to generate more data that no one will ever read never helps.
Thanks for adding this point. I totally agree with you.
Nice guide here! If anyone is curious, I wrote up a tutorial on dev.to covering some tools to help with the link prefetching you mentioned dev.to/remotesynth/promoting-perce...
Thanks Brian. I read your post and it's nicely written. I found instant.page a few months back and I'm currently using it on my blog!
Very good article!
Nice roundup of concepts and tools. Thanks!
What is the advantage of using defer compared to moving all script from the head to the end of body?