Five mistakes teams make with time to first byte

Teams tend to reach for this after something has already gone wrong. These are the ones we run into repeatedly when we audit time to first byte.

Speed is a feature people notice only in its absence, and then they leave rather than complain. Budget a little time for it every quarter and it never becomes a project of its own.

Where it usually goes wrong

• Treating it as a launch task rather than an ongoing one
• Assuming someone else already owns it
• Slow server response caps how fast the page can ever be
• Caching at the edge often fixes it outright
• Never checking whether the fix actually worked

Cheap shared hosting shows up here first. This is the sort of thing that compounds, quietly, in both directions. The teams that stay on top of it are the ones who put it on a calendar rather than a wish list.

What to do next

The short version

Performance work is mostly subtraction, which makes it unpopular and effective. Three things worth confirming about time to first byte before you move on:

• Someone can say what the current setup is without going to look
• Caching at the edge often fixes it outright — and you know whether that is true here
• There is a way to tell whether the last change to this helped

If you are not sure where your systems currently stand on this, it takes us about an hour to find out.