High-Performance Landing Page: Sale of GPS Drones 100/100
Development of a "turnkey" fast, adaptive, and conversion-oriented landing page for selling quadcopters. The main focus is on maximum loading speed (Google Web Vitals), mobile adaptation, and instant order processing via Telegram API.
Technical stack:
Frontend: HTML5 (Semantic), CSS3 (Flex/Grid, Animation), Vanilla JavaScript (ES6+).
Backend: PHP (form processing, cURL).
Integrations: Telegram Bot API, Google Fonts, YouTube API.
Server: Apache (.htaccess configuration).
Implemented solutions and optimization:
1. Performance (Google PageSpeed: 90-99+):
Pure Code: Abandonment of heavy libraries (jQuery, Bootstrap) in favor of pure JS/CSS, ensuring lightning-fast loading.
Images: Implemented WebP format with fallbacks. Used the tag to load different images for mobile (400px) and desktop devices, significantly reducing page weight.
Critical CSS: Critical styles for the first screen embedded in HTML for instant display (LCP optimization).
Video Facade: Implemented the "Facade" pattern for YouTube. Instead of a heavy iframe, a lightweight preview image (20kb) is loaded. The player initializes only after a click (saving ~800kb of traffic).
Server Side: Configured GZIP compression, browser caching (Expires Headers), and HTTPS redirects via .htaccess.
2. UX/UI and Adaptability:
Fully adaptive layout (Mobile First), correct display on iOS (Safari) and Android.
Fixed typical mobile video errors (playsinline, mute).
Implemented smooth scrolling and block appearance animation (Intersection Observer API) without CPU load.
Dark theme ("Techno Dark") with neon accents, corresponding to the gadget niche.
3. Functionality and Lead Generation:
Order form: AJAX data submission without page reload.
Notifications: Instant submission of applications to Telegram (to the manager personally or to a channel) and duplication to Email.
Field validation and spam protection at the PHP level (strip_tags).
Result:
Created a fast and high-quality website.
Technical stack:
Frontend: HTML5 (Semantic), CSS3 (Flex/Grid, Animation), Vanilla JavaScript (ES6+).
Backend: PHP (form processing, cURL).
Integrations: Telegram Bot API, Google Fonts, YouTube API.
Server: Apache (.htaccess configuration).
Implemented solutions and optimization:
1. Performance (Google PageSpeed: 90-99+):
Pure Code: Abandonment of heavy libraries (jQuery, Bootstrap) in favor of pure JS/CSS, ensuring lightning-fast loading.
Images: Implemented WebP format with fallbacks. Used the tag to load different images for mobile (400px) and desktop devices, significantly reducing page weight.
Critical CSS: Critical styles for the first screen embedded in HTML for instant display (LCP optimization).
Video Facade: Implemented the "Facade" pattern for YouTube. Instead of a heavy iframe, a lightweight preview image (20kb) is loaded. The player initializes only after a click (saving ~800kb of traffic).
Server Side: Configured GZIP compression, browser caching (Expires Headers), and HTTPS redirects via .htaccess.
2. UX/UI and Adaptability:
Fully adaptive layout (Mobile First), correct display on iOS (Safari) and Android.
Fixed typical mobile video errors (playsinline, mute).
Implemented smooth scrolling and block appearance animation (Intersection Observer API) without CPU load.
Dark theme ("Techno Dark") with neon accents, corresponding to the gadget niche.
3. Functionality and Lead Generation:
Order form: AJAX data submission without page reload.
Notifications: Instant submission of applications to Telegram (to the manager personally or to a channel) and duplication to Email.
Field validation and spam protection at the PHP level (strip_tags).
Result:
Created a fast and high-quality website.
Kyiv 
Available for hire