Image Optimization (image-optimization)

Summary

Image sizing, formats, lazy loading, and alt text via HTTP.

Classification

• Category: PERFORMANCE
• Plugin id: image-optimization
• Version: 1.1.1
• Target types: WEBSITE, WEBSHOP
• Weight class: MEDIUM
• Risk level: not set on plugin object
• Browser required: No (HTTP / Node / other — see source)
• Tier / group: Tier 1 — HTTP-only

Schedule

• scheduleHints: { defaultInterval: '0 6 * * 1', priority: 7 }
• Prerequisites: None declared on this plugin.

Configurable inputs

Public keys are derived from inputSchema: z.object({ ... }) (underscore-prefixed keys are runtime-only and omitted here).

Field	Notes
timeout	Zod field in inputSchema — see source for defaults, min/max, and .describe().
maxImages	Zod field in inputSchema — see source for defaults, min/max, and .describe().
oversizeThresholdKB	Zod field in inputSchema — see source for defaults, min/max, and .describe().
crawlDelay	Zod field in inputSchema — see source for defaults, min/max, and .describe().

Runtime / injected config

• Prior throttle metrics may be injected for adaptive politeness.

What it does

• Runs as part of the worker test execution pipeline; results become Run rows and may create Finding records.
• Image sizing, formats, lazy loading, and alt text via HTTP.
• For finding titles, metrics, and artifacts specific to this plugin, refer to the implementation linked below.

Source

packages/test-plugins/src/plugins/image-optimization.ts