Networking tools
Subnets, CIDR blocks, and HTTP headers - the plumbing underneath every request.
HTTP Header Analyzer
Paste response headers, get plain-English explanations.
Subnet Calculator
CIDR notation to network address, broadcast address, subnet mask, and usable host range.
CIDR Overlap Checker
Check whether two CIDR blocks overlap - catch VPC peering and routing conflicts before provisioning.
Rate Limit Header Explainer
Paste X-RateLimit or RateLimit response headers - remaining quota and reset time in plain English.
Nginx / Apache Config Generator
Reverse proxy, SSL redirect, gzip - a valid server block or VirtualHost.
See this same kind of analysis applied to your whole repository
Call graphs, dead code, blast radius, and a health score. Results in 60 seconds, free.