x3mgroup

This will add site-wide tweaks to the FUNCTIONS.PHP of any wp-theme, and increases the security of a WordPress Site. 
The creation of this plugin was based on Webfactory’s Ninja Security Plugin!
There is no setup or configuration screen on the current version, but it’s easy enough to edit the plugin. Supports WP Multisite installations
These are the tweaks:
Removes WordPress 
META HEADER version info, so hackers can’t find which version of WP is running!
Replaces the login information so hackers will not know if the USERNAME or the PASSWORD was wrong!
Disables the EDITING of Themes and Plugins by NON ADMIN users!
Removes 
WLW (Windows Live Writer) link is present in the header, 
which is only needed if Winodws Live Writer needs to be used!
Please feel free to add your own tweaks. If you do, please be so kind and leave a message at support!

X3M Site-Wide Ninja Tweaks

RotiStudio

Tamas Rottenbacher

Hungarian: <a href="https://rotistudio.hu/bovitmenyek/refitune-eszkoztar-wordpress-finomhangolashoz/" rel="nofollow ugc">Magyar nyelvű bővítmény leírás</a>
RefiTune – Site refiner toolkit is your Swiss Army knife for WordPress optimization. Whether you’re cleaning up unnecessary code, securing your login page, or customizing the admin experience, this plugin puts the power in your hands.
Each feature can be enabled or disabled individually with just one click — no coding required. A clean, organized dashboard shows you exactly what’s active and what’s not.
What’s Inside? (33 Modules)
Performance: 
* Header Cleanup – Strip out unnecessary wp_head bloat for faster loading. 
* Feed Management – Take control of your RSS/Atom feeds. 
* Disable Emoji – Remove WordPress emoji scripts. 
* Disable jQuery Migrate – Drop legacy jquery-migrate for leaner pages. 
* Disable oEmbed – Stop automatic embedding of YouTube, Vimeo, Twitter, and other external URLs. 
* Remove Asset Version Query Strings – Strip ?ver= from frontend CSS and JS URLs. 
* Post Revisions Limit – Keep your database tidy by limiting stored revisions. 
* Auto-save Interval – Control how often WordPress auto-saves your work. 
* Trash Auto-Delete – Set how long items stay in trash before permanent deletion. 
* Heartbeat API Control – Tune or disable Heartbeat in admin, frontend, and post editor.
Security: 
* Disable XML-RPC – Lock down the XML-RPC interface completely. 
* Disable Trackback/Pingback – Stop spam by disabling trackbacks and pingbacks. 
* Disable File Editor – Hide the built-in code editor for extra security. 
* Automatic Updates Control – Global tri-state control for automatic plugin, theme, translation, and core (minor, major, development) updates; reschedule update checks (WordPress default twice daily, daily, or every 3/7/14 days). Respects <code>AUTOMATIC_UPDATER_DISABLED</code> and <code>WP_AUTO_UPDATE_CORE</code> in wp-config.php when defined. 
* Login Error Messages – Make login errors generic to prevent username fishing. 
* Restrict Admin Access – Choose which roles can access wp-admin. 
* REST API Restrictions – Smart restrictions for sensitive REST API endpoints. 
* Login Limit – Block brute-force attacks by limiting failed login attempts. 
* Verified Upload – Block disguised uploads such as double extensions, MIME mismatches, and embedded script markers.
Visual: 
* Hide Admin Bar – Selectively hide the admin bar for specific roles. 
* Block Visibility (Mobile) – Show/hide Gutenberg blocks on mobile or desktop. 
* Login Page Customization – Brand your wp-login.php with custom logo and colors.
Email: 
* Email Notifications – Fine-tune or disable WordPress system emails. 
* Email sending – Configure external SMTP or disable all emails completely.
Miscellaneous: 
* Disable Comments – Turn off comments site-wide (with WooCommerce review support). 
* External Links in New Window – Auto-open external links in new tabs (with proper rel attributes). 
* Enable Page Excerpt – Enable excerpt fields for pages (not just posts). 
* Clean Upload Filenames – Sanitize image and document filenames on upload (accents, spaces, special characters). 
* SVG Upload – Allow SVG uploads with built-in security filtering. 
* AVIF Upload – Support modern AVIF image format uploads. 
* Role Redirects – Send users to custom pages after login or logout based on their role. 
* Maintenance Mode – Temporarily block visitors while you work on the site. 
* Dynamic Year Shortcodes – Display the current year via <code>[refi-year]</code> or duration via <code>[refi-year from="2006"]</code> shortcodes.
Do you have other plugins? Yes, check my plugins website: <a href="https://rotistudio.com/" rel="nofollow ugc">rotistudio.com</a> 
Where can we learn more about your work? Check my personal website there: <a href="https://rottenbacher.hu/" rel="nofollow ugc">rottenbacher.hu</a> 
Plugin GitHub repository: <a href="https://github.com/rotisoft/refitune" rel="nofollow ugc">github.com/rotisoft/refitune</a>
<h3>Translations</h3>
RefiTune – Site refiner toolkit speaks your language! Currently available in: 
* 🇬🇧 English (default — source strings in code and <code>refitune.pot</code>) 
* 🇭🇺 Hungarian (Magyar) — <code>refitune-hu_HU.po</code>
The plugin is fully translation-ready. Want to contribute a translation? Language files go in <code>/wp-content/plugins/refitune/languages/</code>. Compile <code>.po</code> to <code>.mo</code> (e.g. with Poedit, Loco Translate, or <code>wp i18n make-mo</code>) for WordPress to load translations.
Text Domain: <code>refitune</code>

RefiTune – Site refiner toolkit

Take control of WordPress with smart performance tweaks, security enhancements, and usability improvements. RefiTune is all in one toolkit.

X3M Site-Wide Ninja Tweaks vs RefiTune – Site refiner toolkit