what is cdn server? how internet and websites work explain in hindi

what is the CDN? As you know that every you are seeing on the internet is hosted by a server anywhere in the world, every site like Facebook, Twitter, Instagram, and so on every site was hosted on a server now these days the term CDN was very popular and recently Zerodha, Canva, Upstox, Wajir, etc. These are the names you are aware of it that what are they doing these all-companies websites were shut down for 1 hour on the 21 June 2022 and all the users were not able to use these companies’ websites from 12:04 PM, the users were facing difficulty for 1 Hour approximately, but there was no fault from these companies for this error, the fault was from Cloudfire side who provide his CDN services to those companies, and after that Cloudflare make a statement that there was an error in his CDN network that creates difficulty to the users, so today in this article we find the answer, that what is the CDN network? and more related to this topic.