Real–world HTTP/2: 400gb of images per day

h2-fast-profile

Michael Mifsud of 99designs:

We began a small-scale rollout for static assets earlier this year. After building confidence in our new infrastructure, we began transitioning our static assets to HTTP/2. Surprisingly, some sections of our platform felt noticeably slower. This post will cover our investigation into the performance regressions we experienced by adopting HTTP/2.

So, should you then move to HTTP/2? As per usual, the answer is “It Depends”:

For a typical image rich, latency–bound page using a high–speed, low–latency connection, visual completion was achieved 5% faster on average.

For an extremely image–heavy, bandwidth–bound page using the same connection, visual completion was achieved 5–10% slower on average.

Real–world HTTP/2: 400gb of images per day →

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