← DictionarySite Speed
also called page speed, load time
How quickly pages become visible and usable.
How fast it loads.
What It Is
Site Speed is part of Website, and more precisely Performance. In practice it means this: how quickly pages become visible and usable.
It is something measured and compared over time, so one reading in isolation tells you almost nothing. Held that way, the term stays useful instead of turning into decoration.
How It's Used
You will usually meet Site Speed in site builds, page structure and the technical decisions underneath them. In real work it sits close to Core Web Vitals, Image Optimisation and Caching. The practical test is whether it is measured the same way each period, against something.
Why It Matters
Site Speed is cheap to get right early and awkward to fix late. When it is unclear, the site still launches — it just quietly underperforms. Deciding it deliberately costs one conversation. Leaving it undecided costs several.
It is a score. Scores are only interesting when you compare them. How fast it loads.
Termshift™
How the meaning shifts depending on who is using it, and where.
Inside the industry, Site Speed is used tightly and assumed to be understood: how quickly pages become visible and usable.
Away from the jargon, it is how fast it loads.
The Bottom Line
Site Speed is not complicated — it is just often left vague. How fast it loads. Decide it, write it down, move on.