Over two decades ago, folks did this using web server paths with index.html prioritized over e.g. index.php or index.cfml or whatever. When you'd build the pag

Over two decades ago, folks did this using web server paths with index.html prioritized over e.g. index.php or index.cfml or whatever. When you'd build the page dynamically, you'd also write a static .html before serving the html to the visitor. From then on, the .html got served. On a new build, you'd rm the .htmls. Back at the time, it seemed to be "the simplest thing that could possibly work" for multiplying a server's traffic capacity by 10000.