# Admission Dunia - Comprehensive Technical Reference
> Detailed documentation for LLMs and AI agents regarding the platform's data structures and technical architecture.

## Entity Definitions

### Colleges
The primary data entity. Each college profile includes:
- **Rankings**: NIRF, IIRF, and Global rankings.
- **Accreditations**: NAAC grades, UGC approval, and specialized certifications.
- **Academics**: Course catalogs, fee structures, and placement statistics.
- **Media**: Virtual tours, YouTube video integration with real-time stats.

### Mentors
A networking layer connecting students with professionals:
- **Profiles**: Skills, experience, and availability.
- **Interactions**: Direct consultation booking and guidance sessions.

### Job Posts
Career module for students:
- **Types**: Full-time, Internship, Remote.
- **Metadata**: Sector, salary range, deadline, and direct application links.

## System Architecture

### URL Routing Logic
The platform uses an SEO-friendly routing system via `.htaccess`:
- `college/{slug}` -> `college-details.php`
- `news/{slug}` -> `news-details.php`
- `job/{slug}` -> `job-details.php`
- `mentor/{slug}` -> `mentor-profile.php`
- `p/{slug}` -> `custom-page.php`

### Performance Stack
- **Image Engine**: `serve-file.php` handles dynamic WebP conversion, resizing, and disk-level caching.
- **Optimization**: LCP-first rendering with critical CSS inlining in `header.php`.
- **Background Sync**: YouTube metadata is fetched asynchronously to prevent page load stalls.

### Database
A MySQL-based relational schema manages all content, user sessions, and administrative logs.

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*For general information, refer to [llms.txt](/llms.txt).*