內容簡介
Defer for Contact Form 7 外掛旨在優化 Contact Form 7 表單的載入速度，透過將其核心依賴移至頁面底部，減少對首次渲染的影響，並提供非同步樣式表的載入方式，提升網站效能。
【主要功能】
• 將 Contact Form 7 的核心依賴移至頁面底部
• 非同步載入表單樣式表，減少渲染阻塞
• Pro 版提供延遲載入的防垃圾郵件驗證碼功能
外掛標籤
開發者團隊
原文外掛簡介
On every page Contact Form 7 loads its dependencies (wp-hooks, wp-i18n) and its CSS into the
, blocking first paint. This plugin fixes that:Defer CF7 core — moves wp-hooks/wp-i18n to the footer (you cannot defer them: an inline wp.i18n.setLocaleData block runs synchronously and would throw “wp is not defined”). CF7’s scripts leave the critical path.
Async CSS — the form stylesheet loads via media=print + onload-swap.
Both optimizations are idempotent and safe on every page. Strict dependency: with Contact Form 7 inactive, the plugin does nothing.
A note on jQuery
This plugin does NOT defer jQuery — on purpose. Deferring jQuery is only safe when EVERY jQuery-dependent script on the site is also deferred or in the footer; on an arbitrary site that is not guaranteed and breaks inline scripts in the head.
Pro version
Defer for Contact Form 7 Pro adds lazy-loaded anti-spam captcha — spam protection without a PageSpeed hit. Pick one provider (they are not run at the same time):
Google reCAPTCHA v3 — score-based. api.js loads only on the first interaction with a form, so it never appears in Lighthouse/PSI. The score check is server-side; a fresh single-use token is fetched for every submission. The badge is hidden with the required Google disclaimer (GDPR-friendly); configurable score threshold and action label.
Yandex SmartCaptcha — invisible mode, no widget shown unless the visitor looks suspicious. Same lazy-loading approach, binary server-side check. A practical alternative for sites served from Russia, where Google’s services aren’t always reliable.
The free version stays fully functional on its own.
Support
Questions, bug reports or feature requests: https://www.linkedin.com/in/vitalii-ryabinin/
