Title: Terminbuchung & Kontakt-Button – Delta Booking Button
Author: Delta Web Solution
Published: <strong>29 de junio, 2026</strong>
Last modified: 29 de junio, 2026

---

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# Terminbuchung & Kontakt-Button – Delta Booking Button

 By [Delta Web Solution](https://profiles.wordpress.org/desktopmoe/)

[Download](https://downloads.wordpress.org/plugin/delta-booking-button.2.1.0.zip)

 * [Details](https://pe.wordpress.org/plugins/delta-booking-button/#description)
 * [Reviews](https://pe.wordpress.org/plugins/delta-booking-button/#reviews)
 *  [Installation](https://pe.wordpress.org/plugins/delta-booking-button/#installation)
 * [Development](https://pe.wordpress.org/plugins/delta-booking-button/#developers)

 [Support](https://wordpress.org/support/plugin/delta-booking-button/)

## Description

**Delta Booking Button** macht aus deiner WordPress-Seite ein self-hosted Online-
Terminbuchungs-System mit einem schwebenden Buchungs- und Kontakt-Button. Gebaut
für lokale Dienstleister – Friseure, Coaches, Praxen, Kanzleien und Agenturen –,
die Termine online annehmen wollen, ohne die Daten ihrer Kunden an einen externen
Anbieter zu geben. Buchung, Erinnerungen und Kalender laufen komplett auf deinem
Server: kein externer Buchungsdienst, kein CDN, kein IP-Leak.

#### Appointment Booking

 * **Event Types** — unlimited appointment types with custom duration, buffer time,
   working hours, and custom questions
 * **Booking Popup** — clean calendar with date and time-slot selection, opened 
   from the floating button
 * **Auto-Reminders** — confirmation and 24h reminder email with an ICS calendar
   file attached, sent via WP-Cron
 * **Self-Service Reschedule** — token-based link, no login required for your client
 * **External Calendar Sync (optional)** — read busy times from an iCal/Google/Outlook
   feed to block double-bookings
 * **Timezone Support** — UTC storage, visitor-local display, DST-safe

#### Floating Button & CTA

 * **Three Button Types** — Single Button, Multi-Action FAB, Chat Widget
 * **369 Icons** — Social, UI, E-Commerce, Brands, Arrows, Navigation (local SVG
   sprite, no CDN)
 * **Smart Triggers** — Time-based, Scroll Depth, Exit-Intent, Device, User State,
   URL Conditions
 * **Action Types** — booking, WhatsApp, Telegram, phone, SMS, email, links and 
   webhooks

#### Conversion Tracking

 * **Behavioral Tracking** — Impressions, Clicks, Hover-Intent, Rage-Click Detection,
   Conversion Events
 * **Funnel Analytics** — Impression > Hover > Click > Conversion with drop-off 
   rates
 * **UTM Tracking** — source/medium/campaign/content/term per click

#### Privacy & Self-Hosting (GDPR)

 * Everything runs on your own WordPress install — no third-party booking provider
 * All assets (CSS, JS, 369 SVG icons) are bundled locally — no CDN, no external
   requests
 * IP anonymization on by default; right-to-deletion endpoint included
 * Cookie-consent auto-detect: Borlabs Cookie, Cookiebot, Real Cookie Banner, Complianz—
   tracking starts only AFTER explicit consent
 * Email runs through your own wp_mail() configuration — no external email API

#### Performance

 * Conditional Loading — assets only on pages with active buttons
 * GPU-accelerated animations
 * Frontend bundle < 18 KB gzipped
 * Custom DB tables (no `wp_options` spam)

#### Security

 * Nonce validation on all admin endpoints
 * Rate limiting (60 events/min/session)
 * Honeypot + time-check anti-spam
 * IP anonymization by default

#### More from us

Need forms too? Try our free **Ultimate Form** plugin — a drag-and-drop form builder
with conditional logic, multi-step forms, spam protection and GDPR-friendly entry
management. Learn more: https://delta-web-solution.de/ultimate-form

### External Services

This plugin does not contact any external server for updates, telemetry, license
verification, or analytics, and bundles all assets (CSS, JS, SVG icons) locally (
no CDN). It connects to an external service only in the one optional, admin-controlled
case described below.

#### External calendar (iCal) sync — optional, off by default

If — and only if — you enter an external calendar feed URL (an iCal/ICS link such
as a Google Calendar, Microsoft Outlook, or Apple iCloud secret iCal address) for
an appointment type, the plugin fetches that URL from your server to read busy times,
so slots already taken in that calendar are blocked against double-booking.

 * What is sent and when: a standard HTTP GET request to the exact URL you configured,
   performed while the booking calendar computes available slots (the result is 
   cached for about 15 minutes). No data about your site, visitors, or bookings 
   is transmitted — the plugin only reads the calendar. If no iCal URL is configured,
   no request is ever made.
 * Where: the request goes only to the calendar provider whose URL you entered. 
   Please review that provider’s terms and privacy policy, for example Google Calendar(
   https://policies.google.com/terms, https://policies.google.com/privacy), Microsoft(
   https://www.microsoft.com/servicesagreement, https://privacy.microsoft.com/privacystatement)
   or Apple iCloud (https://www.apple.com/legal/internet-services/icloud/, https://
   www.apple.com/legal/privacy/).

#### Email and messenger links (no third-party servers)

 * Email (booking confirmations and reminders) is sent with WordPress’s built-in
   wp_mail() and your own server configuration. No external email API is used. ICS
   calendar files are generated locally and attached.
 * WhatsApp, Telegram and other messenger buttons generate standard https://wa.me/
   and https://t.me/ links that open in the visitor’s own browser. The plugin sends
   no data to those services server-side.
 * If you configure a webhook action (admin-only), the destination URL is entirely
   under your control; no default webhook endpoint is pre-configured.

### Privacy

Delta Booking Button captures anonymized interaction data for button performance
analysis. No personal data is stored without explicit user consent. IP addresses
are anonymized by default (last octet removed). Cookie consent is automatically 
respected through common consent plugins. A full privacy policy suggestion is registered
in the WordPress privacy tool.

## Screenshots

[⌊Dashboard with KPI cards, live funnel, and button table⌉⌊Dashboard with KPI cards,
live funnel, and button table⌉[

Dashboard with KPI cards, live funnel, and button table

[⌊Button builder with 3-column layout (configuration, live preview, icon picker)⌉⌊
Button builder with 3-column layout (configuration, live preview, icon picker)⌉[

Button builder with 3-column layout (configuration, live preview, icon picker)

[⌊Analytics with time-series chart, funnel detail, and UTM sources⌉⌊Analytics with
time-series chart, funnel detail, and UTM sources⌉[

Analytics with time-series chart, funnel detail, and UTM sources

[⌊Booking popup with live calendar and time slots on the visitor's site⌉⌊Booking
popup with live calendar and time slots on the visitor's site⌉[

Booking popup with live calendar and time slots on the visitor’s site

[⌊The same booking popup, fully responsive on mobile⌉⌊The same booking popup, fully
responsive on mobile⌉[

The same booking popup, fully responsive on mobile

## Installation

 1. Upload the plugin ZIP via **Plugins > Add New > Upload Plugin**
 2. Activate the plugin
 3. Walk through the onboarding wizard (5 steps, ~2 minutes)
 4. Create your first button or choose a template
 5. Test on the frontend

## FAQ

### Is the free version permanently free?

Yes. The free version remains free forever. It includes 3 active buttons, all basic
triggers, 30-day analytics, and standard integrations.

### What data is tracked?

By default: Impressions, Hovers, Clicks, Device type, anonymized IP, UTM parameters.
NO personal data without explicit cookie consent.

### Is the plugin GDPR compliant?

Yes. IP anonymization is active by default. Cookie consent integration with all 
major consent plugins. Right-to-deletion endpoint available. Data stays on your 
own WordPress installation.

### Does it work with Elementor / Gutenberg / Divi?

Yes. Floating buttons are rendered globally and work with any page builder.

### What happens on plugin uninstall?

When you delete the plugin, all tables, options, and user meta are cleanly removed.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Terminbuchung & Kontakt-Button – Delta Booking Button” is open source software.
The following people have contributed to this plugin.

Contributors

 *   [ Delta Web Solution ](https://profiles.wordpress.org/desktopmoe/)

[Translate “Terminbuchung & Kontakt-Button – Delta Booking Button” into your language.](https://translate.wordpress.org/projects/wp-plugins/delta-booking-button)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/delta-booking-button/),
check out the [SVN repository](https://plugins.svn.wordpress.org/delta-booking-button/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/delta-booking-button/)
by [RSS](https://plugins.trac.wordpress.org/log/delta-booking-button/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 2.1.0

 * Frontend popups pixel-perfect implementation — Booking popup and WhatsApp mini-
   chat match design specs
 * Booking popup: Navy gradient header, two-line subtitle, improved calendar cells
   with navy border selection state
 * WhatsApp mini-chat: Green gradient header, proper avatar styling, WhatsApp-style
   bubble with timestamp
 * Master FAB icon color fix — no more yellow override
 * Click-only verification — popups only open on FAB click, never automatically
 * WP-Admin full-screen mode for plugin pages
 * Check button logic — blue checkmark triggers same submit path as green send button

#### 2.0.0

 * Goal-first wizard — create a button in 30 seconds
 * Event types — custom appointment types with duration, buffer, working hours, 
   custom questions, email templates
 * Step-0 event type picker for multiple appointment types
 * Timezone support — UTC storage, user-local display, DST-safe
 * Buffer time — pause before/after each appointment
 * Custom questions per event type
 * Auto-reminder — 24h reminder email with ICS attachment via WP-Cron
 * Self-service reschedule — token-based link, no login required
 * ICS generator (RFC 5545) — Apple Mail, Outlook, Gmail compatible
 * Theme color auto-detect
 * Migration v1.4 to v2.0 — existing slot config automatically converted
 * REST API v2

#### 1.0.0

 * Initial release
 * 3 button types: Single, Multi-FAB, Chat Widget
 * 369 Icons (SVG sprite)
 * Behavioral tracking: Impressions, Clicks, Hover, Rage-Click
 * 5-stage funnel
 * Smart triggers: Time, Scroll, Exit-Intent, Device
 * Cookie consent integration (Borlabs, Cookiebot, Real Cookie Banner, Complianz)
 * IP anonymization by default
 * GDPR right-to-deletion endpoint
 * Multisite compatible
 * Translation ready

## Meta

 *  Version **2.1.0**
 *  Last updated **1 día ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **7.0**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/delta-booking-button/)
 * Tags
 * [booking](https://pe.wordpress.org/plugins/tags/booking/)[dsgvo](https://pe.wordpress.org/plugins/tags/dsgvo/)
   [floating button](https://pe.wordpress.org/plugins/tags/floating-button/)[termin](https://pe.wordpress.org/plugins/tags/termin/)
   [Terminbuchung](https://pe.wordpress.org/plugins/tags/terminbuchung/)
 *  [Advanced View](https://pe.wordpress.org/plugins/delta-booking-button/advanced/)

## Ratings

No reviews have been submitted yet.

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

[See all reviews](https://wordpress.org/support/plugin/delta-booking-button/reviews/)

## Contributors

 *   [ Delta Web Solution ](https://profiles.wordpress.org/desktopmoe/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/delta-booking-button/)