Table of contents
Core Web Vitals are back in the spotlight because INP replaced FID and INP is genuinely hard to pass on WordPress themes. Here's the sequence that works — and the plugins that don't.
TL;DR
- Ship LCP image via <link rel=preload> — not lazy-loaded.
- Defer every third-party script that isn't needed above the fold.
- Cache dynamic content at the edge, not just at PHP.
- Test INP on a real mid-range Android — desktop lies.
The order matters more than the tools
- Page cache (server or edge).
- Image optimization + WebP/AVIF.
- Critical CSS extraction.
- Deferred JS.
- Font optimization (font-display: swap).
- Third-party script audit.
| Vital | Threshold | Common WP fix |
|---|---|---|
| LCP | <2.5s | Preload hero image |
| INP | <200ms | Kill blocking third-party JS |
| CLS | <0.1 | Reserve dimensions on all images/embeds |
Which caching plugin?
The one your host recommends. Fighting your host's cache stack rarely wins.
Ship this workflow inside WordPress
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T
The WBP Editorial Team
WP Bulk Publishing