Keep page load time under 3 seconds

SkillMedia

page-load-time is a skill for AI agents that audits why web pages load slowly. It checks for bottlenecks such as heavy assets and rendering delays, and verifies the actual cause in DevTools, Lighthouse, or field data before recommending changes. It is used when auditing slow page loads, heavy assets, or rendering delays related to keeping page load time under 3 seconds.

Use Keep page load time under 3 seconds in Claude, ChatGPT or Ahel Desktop

Free. Sign in, add Keep page load time under 3 seconds and connect your AI. About a minute.

Also: Claude Code · Cursor · Codex

Then ask your AI: use the Keep page load time under 3 seconds skill

Details

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Have an agent that can load and use skills.

Keep page load time under 3 secondsStart free

What your AI can do with it

  • Audit slow page loads to find the actual bottleneck
  • Identify heavy assets that delay page rendering
  • Detect rendering delays affecting load time
  • Verify findings in DevTools, Lighthouse, or field data
  • Support keeping page load time under 3 seconds

Getting started

  1. Have an agent that can load and use skills.
  2. Add the page-load-time skill to the agent's available skills.
  3. Ask the agent to audit a page that loads slowly.
  4. Provide access to DevTools, Lighthouse, or field data so the agent can verify the bottleneck before recommending changes.

What this skill tells your AI

The instructions your AI receives, as published by thedaviddias/front-end-checklist in skills/page-load-time/SKILL.md and read by ahel’s review.

Studies show 53% of mobile users abandon sites that take longer than 3 seconds to load—slow pages directly hurt conversions, engagement, and SEO rankings.

Quick Reference

  • 3 seconds is the threshold where bounce rates spike dramatically
  • 53% of mobile users abandon sites taking over 3 seconds
  • Focus on Core Web Vitals: LCP, FID/INP, CLS
  • Test on throttled 3G to simulate real-world conditions

Check

Measure the page load time and verify it's under 3 seconds on a standard connection.

Fix

Optimize page load time through lazy loading, CDN usage, caching strategies, and resource optimization.

Explain

Explain how page load time affects bounce rate, SEO rankings, and user satisfaction.

Code Review

Review the routes, assets, and loading behavior that affect Keep page load time under 3 seconds. Flag exact files, requests, or rendering steps that add unnecessary network, CPU, or layout cost, and describe the measurement method used to confirm the issue.


For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/en/rules/performance/page-load-time

Signals

GitHub stars
74k
Forks
7k
Last commit
Oct 2026

Questions

When should this skill be used?
Use it when auditing slow page loads, heavy assets, or rendering delays related to keeping page load time under 3 seconds.
How does it find the cause of a slow page?
It verifies the actual bottleneck in DevTools, Lighthouse, or field data before recommending any changes.
Does it make changes to the page itself?
It audits and recommends changes; the description does not say it applies them automatically.
Advanced
Item type
skill
Key
page-load-time
Source
github.com/thedaviddias/front-end-checklist