What Happens When You Type google.com? (DNS Explained Simply)
Most engineers use the internet every day without thinking about what actually happens before a page loads.
Understanding that process is one of the first building blocks of system design.
Let's start
blog.itsahmadawais.com3 min read
Furqan Ashraf
We are small team, who loves to code.
Great breakdown of how DNS resolution works. One thing worth adding once you understand this flow is the ability to query DNS records programmatically. WhoisFreaks has a DNS Lookup API that lets you fetch A, MX, NS, TXT and other record types for any domain. Useful when you are building tools that need to verify domain configuration, debug DNS propagation issues, or monitor DNS changes over time. Fits naturally into the system design and troubleshooting use cases you mentioned at the end.