Problem
The project needed a focused public product for IP and network checks that could stay fast, avoid account friction, and handle privacy-sensitive lookup data carefully.
iply.dev network diagnostics platform
iply.dev is a small public diagnostics platform for common network checks. It shows a visitor’s public IPv4/IPv6 address with location and network context, then offers focused tools for DNS records, WHOIS/RDAP, reverse DNS, and browser WebRTC leak checks.
The implementation keeps the product narrow: no account is required, the public pages are built with Next.js App Router, and the server-side lookup paths share validation, sanitization, outbound host protections, and optional Redis-backed caching.
The privacy model is part of the product shape. The source project documents that raw visitor IPs are not persisted in app-controlled storage as normal product behavior, while lookup enrichment and WHOIS/WebRTC checks still disclose the third-party data paths they use.
Action
Build a Next.js 16 and Bun app with shared server-side tool logic, validation, SSRF protection, security headers, optional Redis caching, and public pages for IP, DNS, WHOIS/RDAP, reverse DNS, and WebRTC checks.
Outcome
The live site at iply.dev provides five public diagnostic tools, no login requirement, sitemap/robots/structured-data support, and privacy wording that avoids promising more than the implementation supports.
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