What Happens When You Type google.com? (DNS Explained Simply)
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Software Engineer, Dev-ops, AWS
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Julian Neagu1mo ago
dns is basically invisible until something goes wrong and then it feels like the whole app is broken even if nothing changed on your side
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Synfinity Dynamics Pvt Ltd1mo ago
Nice explanation! DNS is one of those concepts that's easy to take for granted until you understand how much happens before a single webpage loads.
I especially liked the emphasis on caching. Many developers focus on the resolution process itself, but browser, OS, resolver, and CDN caching play a huge role in reducing latency and improving user experience. Understanding these fundamentals makes topics like load balancing, CDNs, and distributed system design much easier to grasp later on.
Looking forward to the next article in the series!
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Awais Ahmad1mo ago
Appreciate it! Glad you found it useful.
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Furqan Ashraf1mo ago
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.
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