Knowledge base

Website Speed Optimization: How the Performance Agent Works

How the agent measures your site the way a first-time visitor meets it, which fixes it makes by itself, which ones a person makes, and how the size of the job is counted.

Services explainedUpdated 30 Sep 20262 min read
On this page
  1. Cold-cache audit
  2. The agent’s fixes
  3. The engineer’s fixes
  4. Layouts, not pages
  5. Monitoring
  6. No score promise

Measured as a first visit, three times over

Every number in the audit comes from a true first visit with nothing cached. Each layout is run three times, on mobile and on desktop. A warm cache makes a page look far quicker than a new visitor finds it, so warm runs are left out.

What the agent fixes, with a way back

The agent converts images, minifies files, and sets up caching, compression, headers and edge rules. Each changed file gets its own rollback note. Files are renamed rather than deleted, so any change can be undone within minutes.

What a person fixes

Rewriting templates, building critical CSS and deciding what happens to third-party scripts all need judgment, so an engineer does them. They are quoted once the audit has shown which of them are worth doing, as a fixed price in the written proposal.

Scope is counted in layouts

Pages that share one design and the same assets count as a single layout. A shop with 2,000 products usually comes to four layouts. The agent’s crawl does the counting, and the proposal states the figure.

Kind of siteHow the scope is set
Pages built from shared templatesBy the number of layouts the crawl finds
Hand-coded sites where each page is uniqueThe whole site as one job, at a fixed price in the written proposal

Monitoring after the fixes

  • A fresh audit every week.
  • An alert when a new script or plugin makes a page heavier.
  • Safe fixes applied again where they have been undone.
  • A written report each month, checked by a person.

Why no speed score is guaranteed

We do not promise a particular speed score, and a promise like that deserves caution from anyone who makes it. You get real measurements from before and after, and a clear statement at the start of what is within reach.

Which platforms the agent can change is listed in platform coverage; the service is on the Performance Agent page.

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