DNS Lookup Time
摘要
When a visitor requests a webpage, the first step the browser takes is translating the website's domain name into an IP address. A browser needs an IP address to establish a connection with a website. For example, the domain name matthewedgar.com would be translated into the IP address 15.197.142.173. The browser retrieves the IP address from the DNS (Domain Name System) records. Because this is the first step, more time spent translating the domain into an IP address can slow subsequent steps, making the visitor wait longer to see the webpage.