Social Media • 14 Days Build
Do They Follow?
Instantly check if any two Instagram accounts follow each other. A simple, viral tool used by millions to discover social connections.
Visit dotheyfollow.com
The Challenge
Users wanted a simple way to check Instagram relationships without complex tools. The challenge was handling massive traffic spikes when content went viral.
Our Solution
I built an edge-first architecture using Vercel Edge Functions and Redis caching. The entire check happens in under 500ms even under heavy load.
Key Features
Instant follow checking
Bulk relationship analysis
Share results
API access
Tech Stack
Next.jsTypeScriptRedisVercel Edge Functions
Results
10M+ checks performed
Viral on TikTok
99.9% uptime
Sub-500ms response time
