Negligible impact seen on internet service due to upgradation of keys at servers: ICANN
When an internet user types a website on his browser, the broadband or Internet modem transmits that name to a system called resolver-- which converts the website name in to numeric form containing code and server address of the website.
ICANN has announced in July 2016 to upgrade cryptographic keys that are required to access security system of website names, called (DNSSEC), Image source: Zee Biz