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I’m working on a client project at the moment and, as they’re an ecommerce site, there are a lot of facets of performance I’m keen to look into for them: load times are a good start, start render is key for customers who want to see information quickly (hint: that’s all of them), and client-specific metrics like how quickly did the key product image load? can all provide valuable insights. However, one metric I feel that front-end developers overlook all too quickly is Time to First Byte (TTFB)....