Andreas Grzybowski

<p>A flexible admin & frontend maintenance plugin for WordPress.</p>
<p>Display a non-dismissible banner across the admin area to notify users of upcoming maintenance windows — and optionally replace the <strong>public site</strong> with a fully customizable maintenance page (WordPress page, custom HTML, or template file).</p>
<h3>Features</h3>
<ul>
<li>Admin notice visible to all or selected roles</li>
<li>Configurable date/time window (<code>from</code>/<code>to</code>)</li>
<li>Free text with placeholders: <code>{DATE}</code>, <code>{FROM}</code>, <code>{TO}</code>, <code>{TZ}</code>, <code>{WEEKDAY}</code>, <code>{DATE_TO}</code>, <code>{WEEKDAY_TO}</code>, <code>{DATETIME_FROM}</code>, <code>{DATETIME_TO}</code></li>
<li>Frontend maintenance mode:
<ul>
<li>WordPress page mode</li>
<li>Custom HTML block</li>
<li>Template file (in <code>/assets/maintenance/templates/</code>)</li>
</ul>
</li>
<li>Optional bypass for logged-in users</li>
<li>Multisite-safe uninstall</li>
<li>Fully translatable (<code>Text Domain: admin-maintance-msg</code>)</li>
</ul>
<p>Configure under <strong>Settings <span aria-hidden="true" class="wp-exclude-emoji">→</span> Wartungshinweis</strong>.</p>
<h3>Usage</h3>
<h3>1. Aktivierung und Zugriff</h3>
<p>Nach der Installation findest du den Menüpunkt unter:<br />
<strong>Einstellungen <span aria-hidden="true" class="wp-exclude-emoji">→</span> Wartungshinweis</strong></p>
<p>Hier kannst du das Verhalten des Plugins vollständig steuern.</p>
<h3>2. Admin-Warnleiste (Dashboard-Hinweis)</h3>
<p>Diese Leiste wird oben im WordPress-Dashboard angezeigt, für alle oder ausgewählte Benutzerrollen.</p>
<p><strong>Einstellungen:</strong><br />
– <strong>Wartung aktiv (Checkbox):</strong> Zeigt den Hinweis sofort an, auch außerhalb eines Zeitfensters.<br />
– <strong>Von / Bis (Datum + Uhrzeit):</strong> Optionales Zeitfenster, innerhalb dessen der Hinweis automatisch aktiv ist.<br />
– <strong>Nachricht:</strong> Freitext oder Vorlage mit Platzhaltern:<br />
  – <code>{WEEKDAY}</code>, <code>{DATE}</code>, <code>{FROM}</code>, <code>{TO}</code>, <code>{TZ}</code><br />
  – <code>{DATETIME_FROM}</code>, <code>{DATETIME_TO}</code>, <code>{WEEKDAY_TO}</code>, <code>{DATE_TO}</code><br />
– <strong>Sichtbar für Rollen:</strong> Bestimme, welche Rollen die Nachricht sehen (z. B. nur Administratoren oder Redakteure).</p>
<p>💡 <em>Wenn kein Text eingegeben ist, erzeugt das Plugin automatisch eine Standardmeldung auf Basis des Zeitfensters.</em></p>
<h3>3. Frontend-Wartungsmodus</h3>
<p>Wenn aktiviert, ersetzt das Plugin deine öffentliche Website während der Wartungszeit durch eine <strong>Maintenance Landingpage</strong>.</p>
<p><strong>Einstellungen:</strong><br />
– <strong>Frontend Maintenance aktiv:</strong> Schaltet den Modus ein.<br />
– <strong>Bypass für eingeloggte Nutzer:</strong> erlaubt angemeldeten Benutzern, die Seite weiterhin normal zu sehen.<br />
– <strong>Landingpage-Modus:</strong><br />
  1. <strong>WordPress-Seite:</strong> Nutzt den Inhalt einer bestehenden Seite (Dropdown-Auswahl).<br />
  2. <strong>Custom HTML:</strong> Du kannst eine eigene HTML-Struktur direkt im Textfeld hinterlegen.<br />
  3. <strong>Template-Datei:</strong> Wähle eine HTML-Datei aus dem Plugin-Verzeichnis (<code>assets/maintenance/templates/</code>).</p>
<p>💡 <em>Das Standard-Template <code>default.html</code> zeigt Titel, Nachricht und Zeitraum automatisch an.</em></p>
<h3>4. Templates anpassen</h3>
<p>Eigene Templates kannst du einfach ergänzen:</p>
<ol>
<li>Erstelle im Verzeichnis <code>/assets/maintenance/templates/</code> eine Datei, z. B. <code>blue-theme.html</code>.</li>
<li>Verwende Platzhalter für dynamische Inhalte:
<ul>
<li><code>{{TITLE}}</code>, <code>{{MESSAGE}}</code>, <code>{{SITE_NAME}}</code>, <code>{{WINDOW}}</code></li>
<li><code>{{FROM}}</code>, <code>{{TO}}</code>, <code>{{DATE}}</code>, <code>{{DATE_TO}}</code>, <code>{{TZ}}</code></li>
</ul>
</li>
<li>Füge eigene CSS-Dateien unter <code>/assets/maintenance/css/</code> hinzu und binde sie im Template mit <code><link></code> ein.</li>
</ol>
<h3>5. Verhalten und Priorität</h3>
<p>Das Plugin aktiviert die Frontend-Wartung, wenn:<br />
– „Frontend Maintenance aktiv“ <strong>oder</strong><br />
– ein gültiges <strong>Von/Bis-Zeitfenster</strong> aktiv ist.</p>
<p>Während dieser Zeit:<br />
– wird HTTP <strong>503 (Service Unavailable)</strong> gesendet,<br />
– ein <code>Retry-After</code> Header gesetzt,<br />
– und <code>noindex, nofollow</code> Meta-Tags ausgegeben (SEO-freundlich).</p>
<p>Nach Ablauf oder Deaktivierung wird die normale Seite automatisch wieder angezeigt.</p>
<h3>6. Deinstallation</h3>
<p>Beim Entfernen über „Plugins <span aria-hidden="true" class="wp-exclude-emoji">→</span> Deinstallieren“:<br />
– werden alle Optionen (<code>ammsg_options</code>, alte <code>ck_admin_maintenance_opts</code>) gelöscht,<br />
– in Multisite-Umgebungen automatisch für alle Sites bereinigt.</p>
<h3>7. Tipps & Best Practices</h3>
<ul>
<li>Verwende <strong>UTC+X Zeitzonen</strong> bewusst – die Pluginzeiten richten sich nach der WordPress-Zeitzone.</li>
<li>Wenn du Templates bearbeitest, achte auf <strong>UTF-8 ohne BOM</strong>.</li>
<li>Du kannst über Filter eigene Verhalten ergänzen:
<ul>
<li><code>ammsg_uninstall_option_keys</code> – eigene Optionen löschen</li>
<li><code>ammsg_frontend_template_replacements</code> – Platzhalter erweitern</li>
</ul>
</li>
</ul>
<h3>Support</h3>
<p>Questions or ideas?<br />
<span aria-hidden="true" class="wp-exclude-emoji">→</span> Visit <a href="https://codekeks.de" rel="nofollow ugc">https://codekeks.de</a> or the <a href="https://wordpress.org/support/plugin/admin-maintanance-message/" rel="ugc">WordPress.org support forum</a></p>


Admin Maintenance Message

Show a maintenance banner in WP-Admin and optionally a full frontend maintenance mode with custom templates or HTML pages.

mightyrobin

<p>Mighty Notification Bar is a powerful yet easy-to-use WordPress plugin that allows you to display important messages, announcements, and calls-to-action on your website. Perfect for promoting sales, announcing updates, displaying urgent notices, or highlighting important information.</p>
<h4>Key Features</h4>
<ul>
<li><strong>Flexible Positioning</strong> – Choose between fixed (stays visible when scrolling) or relative positioning (top of page)</li>
<li><strong>Dismissible Notifications</strong> – Let visitors dismiss the bar with customizable cookie duration (1 day to 1 year)</li>
<li><strong>Smart Content Versioning</strong> – Bar reappears for all users when content is updated</li>
<li><strong>Full Customization</strong> – Custom colors, rich text formatting, and flexible styling options</li>
<li><strong>Call-to-Action Button</strong> – Optional button with three styles (primary, secondary, text)</li>
<li><strong>Smart Scheduling</strong> – Set start and end dates for time-limited campaigns</li>
<li><strong>Location Targeting</strong> – Display on all pages, homepage only, or specific pages</li>
<li><strong>Device Targeting</strong> – Show on all devices, desktop only, or mobile only</li>
<li><strong>Fully Responsive</strong> – Works perfectly on desktop, tablet, and mobile devices</li>
<li><strong>Live Preview</strong> – See changes in real-time before publishing</li>
<li><strong>Translation Ready</strong> – Fully translatable with included Dutch translations</li>
<li><strong>WP Rocket Compatible</strong> – Works seamlessly with WP Rocket caching plugin</li>
</ul>
<h4>Perfect For</h4>
<ul>
<li>Product launches and promotions</li>
<li>Limited-time offers and sales</li>
<li>Website maintenance announcements</li>
<li>Cookie consent notices</li>
<li>Newsletter signups</li>
<li>Event announcements</li>
<li>Breaking news and updates</li>
</ul>
<h4>Easy to Use</h4>
<p>Simply install and activate the plugin, then configure your notification bar from the WordPress admin panel. The intuitive interface includes a live preview so you can see exactly how your notification will look before publishing.</p>
<h4>Translations</h4>
<ul>
<li>English (default)</li>
<li>Dutch (Nederlands)</li>
<li>Dutch (Belgium)</li>
<li>Dutch (Formal)</li>
</ul>
<p>Want to translate to your language? We’d love your help! Contact us or submit a translation.</p>
<h4>Developer Friendly</h4>
<p>The plugin uses WordPress best practices and is built with clean, well-documented code. It uses the WordPress Options API for settings storage and follows WordPress coding standards.</p>
<h3>Support the Developer</h3>
<p>If this plugin helps your website, please consider supporting its development:</p>
<ul>
<li>☕ <a href="https://buymeacoffee.com/mightyrobin" rel="nofollow ugc">Buy me a coffee</a></li>
<li>⭐ <a href="https://wordpress.org/support/plugin/mighty-notification-bar/reviews/#new-post" rel="ugc">Rate this plugin</a></li>
<li>🐛 <a href="https://wordpress.org/support/plugin/mighty-notification-bar/" rel="ugc">Report bugs or suggest features</a></li>
</ul>
<p>Your support helps keep this plugin free and maintained!</p>
<h3>Privacy Policy</h3>
<p>This plugin does not collect any personal data. When the dismissible feature is enabled, a functional cookie is stored locally in the user’s browser to remember their preference. This cookie contains no personal information and is used solely to prevent showing the dismissed notification.</p>
<h3>License</h3>
<p>This plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or any later version.</p>
<p>This plugin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License along with this plugin. If not, see https://www.gnu.org/licenses/gpl-2.0.html.</p>
<p>This plugin contains no external libraries. All code is original or uses WordPress core components (jQuery, Color Picker, TinyMCE), which are GPL-compatible.</p>
<h3>Credits</h3>
<p>Developed with ❤️ by <a href="https://mightyrobin.com" rel="nofollow ugc">Mighty Robin</a></p>
<p>Special thanks to:<br />
* Peter Smits — Dutch translation review</p>


Mighty Notification Bar

A flexible notification bar plugin for displaying important announcements at the top or bottom of your website.

Admin Maintenance Message vs Mighty Notification Bar