Beskrywing
DietPress puts your WordPress on a diet and speeds it up. It pairs a complete set of performance optimizations (the ones that used to ship in “Zero Config Performance Optimization”) with a clean, risk-based interface to disable the WordPress features you do not use. Everything is configurable, and the performance optimizations are already on by default, so you can simply activate and enjoy a faster site, or fine-tune every detail.
Coming from “Zero Config Performance Optimization”? This is the same plugin, now called DietPress and fully configurable. All your previous optimizations stay active by default; you just gained a settings page and a whole new set of WordPress-diet options.
By default WordPress loads functions, services and scripts that most sites do not need. They slow down loading times and consume hosting resources. DietPress lets you trim that fat and apply battle-tested performance tweaks, with a clear description of what each option does and what might break, organized by risk level so you always know what is safe.
TWO THINGS IN ONE PLUGIN
1. Performance optimizations (on by default)
- Automatic Critical CSS inlined in the head (optional experimental deferral of non-critical CSS)
- JavaScript defer parsing with smart dependency handling
- Image loading attributes safety net: lazy loading, decoding=async and fetchpriority for images that bypass core
- Automatic image dimensions for better CLS scores (including picture elements)
- Resource hints: preconnect and DNS prefetch for common third-party origins
- Theme stylesheet, critical fonts and logo preloading for a faster LCP
- Google Fonts display=swap
- RSS feed optimization (cache headers and item limit)
- Server rules in .htaccess: browser caching, GZIP and Brotli compression, immutable cache headers, CORS for fonts and keep-alive (master switch plus per-feature toggles)
- Database maintenance: daily expired-transient cleanup and safe query optimizations
2. Put WordPress on a diet (risk-based, opt-in)
- Light (safe for any site): emojis, RSD/WLW tags, shortlinks, self-pingbacks, comment pagination, admin email check, and more
- Moderate (evaluate first): oEmbed, jQuery Migrate, Dashicons on the frontend, Global Styles and Duotone, remote block patterns, avatars and Gravatar, comment threading, and more
- Strict (site-specific): granular RSS feed control, Heartbeat API mode, post revisions and autosave, disable comments, XML sitemap, native lazy loading/fetchpriority, content types, and more
- Widgets: dashboard widgets (including third-party ones from Yoast, WooCommerce, Elementor, Jetpack, Wordfence, Rank Math, Gravity Forms), classic sidebar widgets, block-editor widgets and the Customizer
SCALE, PROFILES AND ANALYZER
- Savings indicator: HTTP requests removed, CSS/JS saved and active optimizations at a glance
- Quick profiles: Personal Blog, WooCommerce Store, Landing Page and Maximum Cleanup
- Site analyzer: personalized recommendations based on your active plugins and content
- Import and export your whole configuration as a JSON file
COMPATIBILITY AND EXTENSIBILITY
The plugin includes filters for developers:
dietpress_critical_css– Customize the inline critical CSSdietpress_critical_css_handles– Define which CSS handles are criticaldietpress_skip_defer_script_handles– Opt scripts out of the JavaScript deferdietpress_skip_defer_style_handles– Opt stylesheets out of the CSS deferraldietpress_preconnect_hints– Customize preconnect originsdietpress_dns_prefetch_domains– Customize DNS prefetch domainsdietpress_critical_fonts– Define critical fonts to preload
Compatible with:
- Well-coded themes and page builders (Divi, Elementor, Beaver Builder, Gutenberg)
- Cache plugins (WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache, etc.)
- Security plugins (DietPress focuses on performance and deliberately leaves security to them; we recommend our free Vigilant)
- CDNs (Cloudflare, StackPath, KeyCDN, etc.) thanks to CORS and Vary headers
- WordPress Multisite
HOW TO VERIFY THE OPTIMIZATIONS
- Cache rules: check your
.htaccessfor a block marked# BEGIN DietPresswithimmutableCache-Control headers - Logo preload: view page source and look for
<link rel="preload" ... fetchpriority="high">pointing to your logo - Critical CSS: view source and look for
<style id="core-diet-critical-css">in the head - Compression: test at giftofspeed.com/gzip-test
Always measure with tools like Google PageSpeed, GTMetrix or WebPageTest, and run each test at least twice to account for caching.
Support
Need help or have suggestions?
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About AyudaWP
We are specialists in WordPress security, SEO, AI and performance optimization plugins. We create tools that solve real problems for WordPress site owners while maintaining the highest coding standards and accessibility requirements.
Screenshots
Installation
- Go to your WP Dashboard > Plugins > Add New and search for ‘DietPress’, or upload the
wpo-tweaksfolder to/wp-content/plugins/. - Activate the plugin through the ‘Plugins’ menu in WordPress.
- Open the DietPress menu to review the settings. Performance optimizations are already on; the diet options are off until you enable them.
Kwel-vrae
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I was using “Zero Config Performance Optimization”. What changed?
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It is the same plugin, now called DietPress. All the performance optimizations you had are still active by default, so nothing breaks on update. On top of that you now get a settings page, individual control over every optimization, and a complete set of options to disable unused WordPress features.
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Is it still zero-config?
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Yes, if you want it to be. The performance optimizations are on by default, so you can just activate and go. The difference is that now you can fine-tune everything and, optionally, put WordPress on a diet by disabling features you do not use.
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I also have the standalone “DietPress” (core-diet) plugin installed. What do I do?
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Nothing needs to be done by hand. When this plugin is active it detects the old “core-diet” plugin and deactivates it automatically (and core-diet 1.0.4 also steps aside on its own). Your settings are preserved because both plugins store them in the same place. The only thing left for you to do is delete the “core-diet” plugin whenever you like.
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Where are the security options the standalone DietPress had?
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They were intentionally left out. The standalone DietPress (core-diet) included a few security toggles (disable XML-RPC, hide login errors, disable Application Passwords, hide the WordPress version, close pingbacks). Security belongs in a security plugin, where those protections are implemented properly and maintained as such; we recommend our free Vigilant. If you migrate with any of those toggles enabled, DietPress shows you a one-time notice listing them, and those features simply return to the default WordPress behavior.
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Will it break my site?
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The performance optimizations are designed to be safe and are tested across many sites. The diet options only change something when you explicitly enable each toggle, and every option has a description of what might break. If something fails, turn the toggle off; deactivating the plugin restores default WordPress behavior.
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Is it compatible with caching plugins and CDNs?
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Yes. DietPress works alongside caching plugins and includes CORS and Vary headers for full CDN compatibility.
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Something went wrong after activation
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If a plugin or theme does not enqueue scripts correctly, the JavaScript defer may affect it; you can turn that option off or use the
dietpress_skip_defer_script_handlesfilter. If you get a 500 error, edit your.htaccessand remove the block that starts with# BEGIN DietPress(or# BEGIN Zero Config Performanceif you updated from 2.x and the rules have not been rewritten yet), or disable the “.htaccess server rules” option. -
Can I customize the optimizations as a developer?
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Yes. See the filters listed in the description (the
dietpress_*hooks).
Aanbevelings
Contributors & Developers
“DietPress” is oopbron sagteware. Die volgende mense het bygedra tot die ontwikkeling van hierdie uitbreiding:
Contributors
“DietPress” has been translated into 9 locales. Thank you to the translators for their contributions.
Translate “DietPress” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
3.0.1
- Fix: removed the “REST API access” control from the Strict tab. Restricting the REST API is a security feature, not a performance one, and it overlapped with dedicated security plugins, with which it could also clash on the same
rest_authentication_errorsfilter. REST API access now follows default WordPress behavior; manage it from your security plugin instead, such as our free Vigilant. If you had set it to “Require authentication” or “Disable”, that restriction no longer applies after updating, and DietPress shows a one-time notice pointing you to Vigilant.
3.0.0
- New: the plugin is now DietPress (formerly “Zero Config Performance Optimization”), fully configurable from a new top-level “DietPress” admin menu with its own settings page.
- New: a complete, risk-based set of options to put WordPress on a diet (Light, Moderate, Strict and Widgets), covering emojis, RSD/WLW, shortlinks, self-pingbacks, oEmbed, jQuery Migrate, Dashicons, REST API control, granular RSS feeds, comments, Heartbeat, revisions, autosave, content types, and dashboard/sidebar/block/Customizer widgets. Security-related toggles (XML-RPC, pingbacks, login errors, Application Passwords, version hiding) are intentionally not included: they belong in a security plugin, like our free Vigilant, and DietPress tells you once if you had any of them enabled.
- New: Scale tab with a savings indicator, quick profiles (Personal Blog, WooCommerce, Landing Page, Maximum Cleanup) and a site analyzer with recommendations.
- New: import and export your configuration as a JSON file.
- Improved: every performance optimization from the previous “Zero Config” version is now an individual setting you can fine-tune (JavaScript defer, Critical CSS, image loading attributes, image dimensions, resource hints, asset and logo preloading, RSS feed optimization, .htaccess browser caching/GZIP/Brotli/headers, transient cleanup and query optimizations). They all stay ON by default, so updating sites keep their current behavior.
- Improved: the Critical CSS deferral of non-critical stylesheets (the part that can cause a flash of unstyled content) is now a separate, opt-in “experimental” toggle, while the safe inline critical CSS stays on by default.
- Improved: the .htaccess server rules are now applied when you save settings, with a master switch plus per-feature toggles (browser caching, GZIP, Brotli, cache headers, CORS for fonts, keep-alive), and are removed cleanly on deactivation. The block is now labeled “# BEGIN DietPress”; the old “Zero Config Performance” block is replaced automatically.
- Improved: developer filters renamed to the
dietpress_prefix (dietpress_critical_css,dietpress_critical_css_handles,dietpress_skip_defer_script_handles,dietpress_skip_defer_style_handles,dietpress_preconnect_hints,dietpress_dns_prefetch_domains,dietpress_critical_fonts). The formerayudawp_wpotweaks_*filters keep working through a compatibility bridge, but are deprecated: please update your snippets to the new names. - Fix: the retired standalone DietPress (“core-diet”) plugin is detected and deactivated automatically, preventing fatal conflicts while both are installed; its settings carry over.
For older changelog entries, please check the changelog.txt file.