This site has very good performance test results, but EVERY site can be improved further including this one.
For example I’m running the site on a cheap Godaddy VPS (Virtual Private Server) which only cost around $600 for 3 years (was a January sale) and it runs around 100 domains.
Performance would improve if I upgraded the server (more memory/faster CPU) and/or I reduced the number of domains and/or I went dedicated server and/or…. It’s all about balance between how much you are prepared to spend in both time and money.
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