Title: Cacheability
Author: Danila Vershinin
Published: <strong>2022 年 4 月 8 日</strong>
Last modified: 2026 年 5 月 21 日

---

搜尋外掛

這個外掛**並未在最新的 3 個 WordPress 主要版本上進行測試**。開發者可能不再對這個
外掛進行維護或提供技術支援，並可能會與更新版本的 WordPress 產生使用上的相容性問題。

![](https://ps.w.org/cacheability/assets/icon-256x256.png?rev=2707233)

# Cacheability

 由 [Danila Vershinin](https://profiles.wordpress.org/dvershinin/) 開發

[下載](https://downloads.wordpress.org/plugin/cacheability.2.1.0.zip)

 * [詳細資料](https://tw.wordpress.org/plugins/cacheability/#description)
 * [使用者評論](https://tw.wordpress.org/plugins/cacheability/#reviews)
 *  [安裝方式](https://tw.wordpress.org/plugins/cacheability/#installation)
 * [開發資訊](https://tw.wordpress.org/plugins/cacheability/#developers)

 [技術支援](https://wordpress.org/support/plugin/cacheability/)

## 外掛說明

Cacheability makes your WordPress site a better HTTP citizen, improving SEO and 
cache efficiency.

#### Free Features

**Soft 404 Fix**

WordPress returns HTTP 200 for empty search results, invalid tag pages, and empty
category archives. Google marks these as “soft 404” errors in Search Console, hurting
your SEO.

Cacheability fixes this by returning proper 404 status codes when:

 * Search results are empty (`/?s=nonexistent`)
 * Tag archives are empty (`/tag/nonexistent/`)
 * Category archives are empty
 * Author archives are empty

**Smart Cache-Control Headers**

Automatically adds `s-maxage` headers so Varnish, NGINX, and CDNs can cache your
pages efficiently without affecting browser caching behavior.

 * Search/404 pages: 1 hour cache
 * All other pages: 1 year cache (your purge plugin handles invalidation)

#### Cacheability Pro

Upgrade to [Cacheability Pro](https://www.getpagespeed.com/web-apps/cacheability-pro)
for advanced features:

 * **Cache Warming** — Automatically warm pages after purging so visitors never 
   hit cold cache
 * **Conditional GET (304)** — Return 304 Not Modified for unchanged content, saving
   bandwidth
 * **ESI Support** — Cache pages with dynamic nonces (comments, login forms)
 * **Rate-Limit Safe** — Smart request queuing to avoid 429 errors
 * **Sitemap Warming** — Warm all pages from sitemap after full purge
 * **WP-CLI Commands** — `wp cacheability warm` and more
 * **Priority Support** — Get help when you need it

[Get Cacheability Pro ](https://www.getpagespeed.com/web-apps/cacheability-pro)

## 安裝方式

 1. Upload to `/wp-content/plugins/cacheability/`
 2. Activate the plugin through the ‘Plugins’ menu
 3. That’s it! No configuration needed.

The plugin works automatically. You can view the settings page under Settings  Cacheability.

## 常見問題集

### Is it compatible with caching plugins?

Yes! Cacheability works alongside any caching solution including WP Super Cache,
W3 Total Cache, WP Rocket, Varnish, NGINX FastCGI cache, and CDNs like Cloudflare.

### Does it slow down my site?

No. Cacheability adds minimal overhead — it just sets proper HTTP headers and status
codes.

### What’s the difference between free and Pro?

The free version fixes soft 404s and adds cache headers. Pro adds cache warming (
automatically re-caches pages after purging), conditional GET responses (304), and
ESI support for dynamic content.

### Do I need Varnish HTTP Purge plugin?

For the free version, no. For Cacheability Pro’s cache warming feature, we recommend
[Varnish HTTP Purge](https://wordpress.org/plugins/varnish-http-purge/) or similar
purge plugin.

## 使用者評論

這個外掛目前沒有任何使用者評論。

## 參與者及開發者

以下人員參與了開源軟體〈Cacheability〉的開發相關工作。

參與者

 *   [ Danila Vershinin ](https://profiles.wordpress.org/dvershinin/)

[將〈Cacheability〉外掛本地化為台灣繁體中文版](https://translate.wordpress.org/projects/wp-plugins/cacheability)

### 對開發相關資訊感興趣？

任何人均可[瀏覽程式碼](https://plugins.trac.wordpress.org/browser/cacheability/)、
查看 [SVN 存放庫](https://plugins.svn.wordpress.org/cacheability/)，或透過 [RSS](https://plugins.trac.wordpress.org/log/cacheability/?limit=100&mode=stop_on_copy&format=rss)
訂閱[開發記錄](https://plugins.trac.wordpress.org/log/cacheability/)。

## 變更記錄

#### 2.1.0

 * New: Prevents Google’s “Soft 404” indexing flag on tag/category archives that
   don’t currently have posts assigned, and on search-results pages.

#### 2.0.1

 * Fixed duplicate Cache-Control headers when another plugin sets headers via PHP
   header() function

#### 2.0.0

 * Major update: Streamlined free version
 * Cache warming, conditional GET, and ESI moved to Cacheability Pro
 * Added settings page with Pro feature overview
 * Improved soft 404 detection (now includes category and author archives)
 * Code modernization and cleanup

#### 1.1.7

 * Fixed a PHP notice when used together with older versions of Varnish HTTP Purge
   plugin and WP-Rocket integrations

#### 1.1.6

 * Fixed a PHP fatal error when used together with older versions of Varnish HTTP
   Purge plugin and WP-Rocket integrations

#### 1.1.3

 * Fixed some PHP warnings

#### 1.1.0

 * Added cache warmup feature for updated content

#### 1.0.0

 * Initial release

## 中繼資料

 *  版本 **2.1.0**
 *  最後更新 **1 週前**
 *  啟用安裝數 **100+**
 *  WordPress 版本需求 ** 5.0 或更新版本 **
 *  已測試相容的 WordPress 版本 **6.7.5**
 *  PHP 版本需求 ** 7.0 或更新版本 **
 *  語言
 * [English (US)](https://wordpress.org/plugins/cacheability/)
 * 標籤:
 * [404](https://tw.wordpress.org/plugins/tags/404/)[cache](https://tw.wordpress.org/plugins/tags/cache/)
   [performance](https://tw.wordpress.org/plugins/tags/performance/)[seo](https://tw.wordpress.org/plugins/tags/seo/)
   [varnish](https://tw.wordpress.org/plugins/tags/varnish/)
 *  [進階檢視](https://tw.wordpress.org/plugins/cacheability/advanced/)

## 評分

這個項目尚無任何評論記錄。

[Your review](https://wordpress.org/support/plugin/cacheability/reviews/#new-post)

[查看全部使用者評論](https://wordpress.org/support/plugin/cacheability/reviews/)

## 參與者

 *   [ Danila Vershinin ](https://profiles.wordpress.org/dvershinin/)

## 技術支援

使用者可在技術支援論壇提出意見反應或使用問題。

 [檢視技術支援論壇](https://wordpress.org/support/plugin/cacheability/)

## 贊助

想要支援這個外掛的發展嗎？

 [ 贊助這個外掛 ](https://www.buymeacoffee.com/dvershinin)