Are there big websites build with open source software that gets millions of visitors every month?
Wikipedia is fully GPL.
GPL and derivatives are the best forms of FOSS licenses. I spent many years listening to views and genuinely did not find any strong arguments for using MIT/BSD/Apache/etc.
The most fundamental problem with most non-GPL licenses is that companies don’t give back. Anyone who’s worked in a corporate entity knows this. Some of the older BSD folks talk about Wind River a lot, and this is a company both my parents worked at for decades, and that company and their employees did not give a single fuck about BSD, beyond what they could take from it.
I can’t think of a single large website that isn’t built on open source software. Maybe an old version of Microsoft.com was using some closed source garbage?
As far as the largest open-source frontend website, that would be Wikipedia. It ranks 4th most visited website in the world, and runs on the open source mediawiki.
Depends on what you mean by “built with”.
PHP is open source and the most widely used web backend language, by far. As is Python and Node.JS, both also open source and very popular. Actually, most major programming languages are open source.
For frontend, angular, react, vue, and jQuery are also open source, and last but certainly not least, Bootstrap.
Apache and Nginx web servers have a huge combined market share, both are open source. As are popular databases like MySQL, PostgreSQL, MongoDB, etc. As are other web software like Redis, Docker, Kubernetes, etc.
The vast majority of websites use GNU/Linux servers, which are also open source.
For specific examples that I can think of, Instagram is written in Django, which is an open source web framework in Python. Reddit is written in Pyramid, another open source Python web framework. In fact all of Reddit was open source until a few years ago.
Most of websites are built on Wordpress, so thats a start.
There is a lot of JS around, but most websites have some Open Source foundation.
For JS specifically, you’d be extremely hardpressed to find any vaguely large website without jQuery or Bootstrap.
Wordpress dot com
Facebook, Google - all of GAFAM is built on Open Source. GAFAM ist clever.
