name, description
| name |
description |
| seo-core-web-vitals |
Core Web Vitals analyzer for LCP, FID, CLS, and INP optimization recommendations.
Triggers: Core Web Vitals, page speed, LCP optimization, CLS fix, INP analysis.
|
SEO Core Web Vitals
Purpose
Analyze Core Web Vitals performance metrics and provide optimization recommendations.
Core Capabilities
- LCP - Largest Contentful Paint measurement
- FID/INP - Interactivity metrics
- CLS - Cumulative Layout Shift
- Recommendations - Optimization guidance
Metrics Thresholds
| Metric |
Good |
Needs Work |
Poor |
| LCP |
≤2.5s |
2.5-4s |
>4s |
| FID |
≤100ms |
100-300ms |
>300ms |
| CLS |
≤0.1 |
0.1-0.25 |
>0.25 |
| INP |
≤200ms |
200-500ms |
>500ms |
Data Sources
Option 1: PageSpeed Insights (Recommended)
Use external tool and input results:
Option 2: Research Best Practices
Workflow
- Request PageSpeed Insights data from user
- Analyze provided metrics
- Identify failing metrics
- Research optimization strategies
- Provide prioritized recommendations
Common LCP Issues
| Cause |
Fix |
| Slow server response |
Improve TTFB, use CDN |
| Render-blocking resources |
Defer non-critical CSS/JS |
| Slow resource load |
Preload LCP image |
| Client-side rendering |
Use SSR/SSG |
Common CLS Issues
| Cause |
Fix |
| Images without dimensions |
Add width/height attributes |
| Ads/embeds without space |
Reserve space with CSS |
| Web fonts causing FOIT/FOUT |
Use font-display: swap |
| Dynamic content injection |
Reserve space, use transforms |
Common INP Issues
| Cause |
Fix |
| Long JavaScript tasks |
Break up tasks, use web workers |
| Large DOM size |
Reduce DOM nodes |
| Heavy event handlers |
Debounce, optimize listeners |
| Third-party scripts |
Defer, lazy load |
Output Format
Limitations
- Requires external PageSpeed Insights data
- Lab data may differ from field data
- Some fixes require developer implementation
- Third-party scripts may be difficult to optimize
Notion Output (Required)
All audit reports MUST be saved to OurDigital SEO Audit Log:
- Database ID:
2c8581e5-8a1e-8035-880b-e38cefc2f3ef
- Properties: Issue (title), Site (url), Category, Priority, Found Date, Audit ID
- Language: Korean with English technical terms
- Audit ID Format: [TYPE]-YYYYMMDD-NNN