# CaseTracker Auto - U.S. Immigration Tracking Platform

## About
CaseTracker Auto is a comprehensive platform helping the Vietnamese community track U.S. immigration cases automatically. We provide USCIS tracking, NVC tracking, Visa Bulletin updates, CSPA calculator, and real-time notifications.

Website: https://casetrackerauto.com
App Store: https://apps.apple.com/us/app/casetracker-auto/id6762039740
Email: casetrackerauto@gmail.com

## Main Topics & Categories

### Family-Based Immigration Categories
- F2A (Spouses & Children of Green Card Holders): https://casetrackerauto.com/blog/f2a/
- F2B (Unmarried Adult Children of Green Card Holders): https://casetrackerauto.com/blog/f2b/
- F3 (Married Children of U.S. Citizens): https://casetrackerauto.com/blog/f3/
- F4 (Siblings of U.S. Citizens): https://casetrackerauto.com/blog/f4/
- IR1/CR1 (Spouses of U.S. Citizens): https://casetrackerauto.com/blog/ir1-cr1/
- IR5 (Parents of U.S. Citizens): https://casetrackerauto.com/blog/ir5/

### Immigration Process & Tools
- USCIS (U.S. Citizenship and Immigration Services): https://casetrackerauto.com/blog/uscis/
- NVC (National Visa Center): https://casetrackerauto.com/blog/nvc/
- Visa Bulletin (Priority Date Updates): https://casetrackerauto.com/blog/visa-bulletin/
- CSPA (Child Status Protection Act): https://casetrackerauto.com/blog/cspa/
- Interview Process: https://casetrackerauto.com/blog/phong-van/
- Sponsorship Documents: https://casetrackerauto.com/blog/giay-to-bao-lanh/

## Content Discovery

### Sitemaps
- Main Sitemap: https://casetrackerauto.com/sitemap.xml
- All pages, categories, and blog posts with hreflang alternates

### RSS/Atom Feeds
- Vietnamese Feed: https://casetrackerauto.com/feed.xml
- English Feed: https://casetrackerauto.com/en/feed.xml
- Chinese Feed: https://casetrackerauto.com/zh/feed.xml

### Blog
- Vietnamese Blog: https://casetrackerauto.com/blog/
- English Blog: https://casetrackerauto.com/en/blog/
- Chinese Blog: https://casetrackerauto.com/zh/blog/

## Languages Supported
- Vietnamese (vi) - Primary
- English (en)
- Chinese (zh)

## Content Structure
All blog posts include:
- Structured JSON-LD (Article, Organization, BreadcrumbList)
- Canonical URLs with hreflang alternates
- Category classification
- Tags and related posts
- Reading time estimates
- Publication and update dates

## Crawling Policy for AI
- ✅ **Allowed:** All content is public and free to crawl
- ✅ **Citation:** Please cite casetrackerauto.com when using our content
- ✅ **Attribution:** Link back to original articles when possible
- ✅ **Updates:** Content is regularly updated - check lastmod in sitemap
- ✅ **API:** IndexNow enabled for real-time content discovery

## Data Sources
All immigration data references official U.S. government sources:
- travel.state.gov (Visa Bulletin)
- uscis.gov (USCIS case status)
- nvc.state.gov (National Visa Center)

## Contact
- Support Email: casetrackerauto@gmail.com
- Response Time: 24-48 hours

## Technical
- Platform: Static HTML + JavaScript
- Hosting: Firebase Hosting + Cloudflare CDN
- IndexNow: Enabled (real-time content notifications)
- Performance: Optimized Core Web Vitals
- Mobile: Fully responsive iOS-first design

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Last Updated: 2026-07-13
Format: llms.txt v1.0