Although, there are a lot of different ways to optimize WordPress, reducing DNS lookups is what you often notice when you run tests on any page speed test tool. Even Google wants you to focus on this parameter which is an essential factor for your WordPress optimization. This term is often get failed to notice how look-up time is related to DNS and up to what extent it can affect your overall website performance.
Just like any other webpage speed factors like TTFB (time for the first byte) or Network Latency, …
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