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Capo – Head Optimizer Wordpress Plugin - Rating, Reviews, Demo & Download

Capo – Head Optimizer Wordpress Plugin - Rating, Reviews, Demo & Download
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Plugin Description

In standard WordPress sites, WordPress Core, themes, SEO plugins, analytics scripts, and third-party plugins inject elements into wp_head() in arbitrary order. This can lead to critical performance pitfalls:

  • Delayed Title Tag Rendering: SEO metadata and large JSON-LD blocks placed before <title>.
  • Delayed Resource Discovery: Preconnects, preloads, and async scripts pushed below dozens of CSS stylesheets.
  • Render-Blocking Bottlenecks: External synchronous scripts blocking CSS and parser execution.

Capo solves this automatically. By intercepting the page response via output buffering, Capo uses a deterministic, stable sorting algorithm to reorder <head> elements strictly according to browser critical rendering path priorities.

The Capo Head Priority Spectrum

Capo organizes elements into 11 strict priority tiers (Weight 10 down to 0):

  1. Weight 10 (Critical Meta & Viewport): <base>, <meta charset>, <meta name="viewport">, critical http-equiv headers (CSP, origin-trial, accept-ch).
  2. Weight 9 (Title): <title>.
  3. Weight 8 (Preconnect): <link rel="preconnect">.
  4. Weight 7 (Async Script): <script src="..." async>.
  5. Weight 6 (CSS @import Styles): <style> blocks containing @import rules.
  6. Weight 5 (Sync / Inline Scripts): Synchronous/inline JavaScript (<script> without defer/async).
  7. Weight 4 (Stylesheets & Style Blocks): <link rel="stylesheet">, <style> blocks.
  8. Weight 3 (Preload): <link rel="preload">, <link rel="modulepreload">.
  9. Weight 2 (Defer Script): <script src="..." defer>, <script src="..." type="module">.
  10. Weight 1 (Prefetch / Prerender): <link rel="prefetch">, <link rel="dns-prefetch">, <link rel="prerender">, <script type="speculationrules">.
  11. Weight 0 (Other Metadata): OpenGraph, Twitter cards, Schema JSON-LD, RSS feeds, favicons, robots metadata.

Features

  • Zero Configuration: Activate the plugin and your <head> is immediately optimized.
  • Deterministic Stable Sort: Equal-weight elements retain their exact relative order, preserving CSS cascade specificity and JavaScript dependencies.
  • Full Cache Compatibility: Works seamlessly with WP Super Cache, W3 Total Cache, WP Rocket, LiteSpeed Cache, and Cloudflare.
  • Safe HTML Tokenizer: Respects HTML comments, conditional comments (<!--[if ...]>), CDATA blocks, and inline script markup.
  • Site Health & Admin Diagnostics: Real-time <head> hygiene warnings and diagnostic status in Tools > Site Health and Admin Toolbar.
  • Testing & Bypass Mode: Append ?capo=off to any frontend URL to inspect the un-reordered head.

Screenshots

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