







Get my IP Address
Networking Toolbox
A free set of online tools to help with IP addressing and subnetting.

mycrab.space โ Own your internet. Stop renting it.
Self-host 200+ apps on your own machine with a permanent .mycrab.space address. ZeroConf. No VPS. No port forwarding.
ramonvermeulen/whosthere
Local Area Network discovery tool with an interactive Terminal User Interface (TUI) written in Go. Discover, explore, and understand your LAN in an intuitive way. Knock Knock.. who's there? ๐ช
Address Lookup - iroh
Use this file to discover all available pages before exploring further.
IPIP-504: `provider` query parameter as hint for HTTP Gateways by vasco-santos ยท Pull Request #504 ยท ipfs/specs
Based on initial exploration https://github.com/vasco-santos/provider-hinted-uri/blob/main/EXPLORATION.md
ICANN Lookup
The ICANN registration data lookup tool gives you the ability to look up the current registration data for domain names and Internet number resources.
Cloudflare tunnel: localhost doesn't work, but the actual assigned IP does?
I'm running a cloudflare tunnel via docker on my home server (a raspberry pi). When I set my Public Hostnames in the Cloudflare tunnel dashboard, Iโฆ
Server Status
Report generated: 2026-08-02 05:39:00 UTC (uptime: 4 days, 20:26:21, kernel: 6.8.0-136-generic)

Open Port Check Tool -- Verify Port Forwarding on Your Router
A free open port check tool used to detect open ports on your connection. Test if port forwarding is correctly setup or if your port is being blocked by your firewall or ISP.
AWS IP address ranges - Amazon Virtual Private Cloud
Use Amazon VPC to launch AWS resources into a virtual network that is a logically isolated section of the AWS cloud. Use Amazon VPC to launch AWS resources into a virtual network that is a logically isolated section of the AWS cloud.

was it loaded via http+dns+ssl? then it's server-first. (which is not bad. but it's not the local-first i want.)
Jake Lazaroff
this looks very cool, i mean that genuinely, but tbh i bristle a bit seeing "local-first" used as a straw man here. of course if your server is the source of truth you can eliminate a lot of local-first complexity โ the entire point of that complexity is to avoid a server-authoritative architecture!