GitHubby MatinSenPaiscored by google/gemini-2.5-flash

MatinSenPai/SenPaiScanner

Opportunity

AI-buildable

Traction

Creativity

The take

effort: ~1-2 weeks

SenPaiScanner is a lightweight Go-based tool for scanning and identifying optimal Cloudflare IP addresses. It helps users find the fastest and most stable Cloudflare proxies for their network needs. The project has garnered significant stars, indicating interest from a technical audience.

Demand & gap

Vitamindemand 43

Demand

Will. to pay

Gap

Buyer

Developers

The gap in what exists: While other network tools exist, a focused, lightweight, and regularly updated Cloudflare IP scanner has a niche for specific use cases like bypassing geo-restrictions or optimizing network routes.
Wedge to win: Target developers or prosumers who need to optimize their Cloudflare connections for specific applications or regions, offering a simple and dedicated solution.
Reputation value (worth doing free for proof) — 60/100: Building a solid, well-maintained version could gain significant GitHub stars and visibility within the developer community, serving as strong proof-of-work for network or infrastructure tool development.
Likely monetization: unclear
Incumbents to beat: Cloudflare Warpspeedtest-cligeneral network diagnostic tools

Deliver it

A starter prompt for Claude Code, what you'll need, and how to reach them.

You are an expert Go and Next.js developer. Create a lightweight Cloudflare IP scanner CLI tool in Go. The tool should identify optimal Cloudflare IPs based on latency and packet loss. For the MVP, focus on building the Go CLI that takes a list of Cloudflare IP ranges (e.g., from a configuration file or command-line argument) and pings each IP to measure RTT and packet loss. Output the top N fastest IPs. For the later stages, design a simple Next.js 16 App Router application with React 19 and Tailwind v4 that allows users to initiate a scan from a web interface and visualize the results (e.g., a sortable table of IPs with latency, packet loss, and location data) using Neon Postgres on Vercel to store scan history. The Go backend should be callable by the Next.js frontend. Prioritize clean code, robust error handling, and a user-friendly CLI experience for the Go component. The build/verify gate for the CLI is: The `senpaiscanner scan` command successfully identifies and prints the top 10 fastest Cloudflare IPs from a given list.

Prerequisites — cost & what to learn

Go compiler and toolchain installedFree · —✓ in your stack

How you'd build it

1Research Cloudflare's IP ranges and public API endpoints for network performance data (if available).
2Develop a Go-based scanner that can ping or measure latency to a list of Cloudflare IPs.
3Implement a mechanism to filter and rank IPs based on latency, packet loss, and other relevant metrics.
4Build a simple CLI interface for users to specify IP ranges or perform a general scan.
5Consider adding a web-based dashboard (Next.js/React) for visualizing scan results and historical data.

Risks & moats

Cloudflare's IP ranges can change, requiring constant updates to the scanner.
Performance measurement can be tricky and vary greatly based on the user's network conditions.
The tool might be used for purposes Cloudflare discourages, leading to potential issues.
Monetization is difficult for a simple, single-purpose CLI utility.

Original context

A light-weight scanner for Cloudflare IPs, written in Golang