How To Leverage DNS Caching

One of the recurring themes in this series and many articles about performance is caching. Serving cached content often leads to significant performance improvements as it saves round trips and thus time over a network.

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How DNS Lookups Affect Website Performance

Resolving a domain name into an IP address is probably not a performance bottleneck for your site. To be honest, there are limited performance gains to be had with DNS lookups. That said, I think there are some good reasons to understand DNS better both in general and in terms of performance.

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