Glossary term
What is IPv4 / IPv6 (IP version 4 / 6)?
IPv4 / IPv6 stands for IP version 4 / 6.
Two address formats. IPv4 is short (and has run out); IPv6 is long, with almost unlimited addresses. Example: IPv4: 192.168.1.10; IPv6: 2001:db8::1.
Learn it properly · System DesignLesson 1: What Happens When You Type a URL and Press Enter?The one second between pressing Enter and seeing a page hides a DNS lookup, a trip through a dozen routers, two handshakes and a server doing real work. Every later lesson zooms into one part of that journey.