How does the ICANN work and what power does it have over the working of the internet?
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ICANN is formally in charge of the TLD (top level domain) name system. TLDs are things like .com, .org, .edu, etc. They control the criteria one much meet to get assigned a TLD and control which registrar is in charge of administering URL assignments for that TLD (for example, Verisign controls assignments for the .com TLD). As a part of this, they run the DNS (Domain Name System) which is the master “phonebook” of the internet, associating URLs with the IP addresses that house the servers running the website.
They also control IANA – the Internet Assigned Numbers Authority. IANA oversees the allocation of IP address blocks to Tier 1 ISPs.
So, basically, ICANN controls the protocols which govern the internet and which every ISP much adhere to to be a part of the global internet structure.
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