Why is GeoIP missing?

MaxMind GeoLite2 requires a licensed database download on the backend. v1 returns PTR, ASN, and RBL only; geo is planned behind an env-configured provider.

Can I look up private IPs?

No. RFC1918, loopback, and link-local ranges are rejected.

IP Intelligence

PTR, ASN, and Spamhaus RBL checks for public IP addresses

Public IP

Private and reserved ranges are rejected.

Try an example:

IP Intelligence — PTR, ASN, and RBL in One Lookup

Reverse DNS, Team Cymru ASN mapping, and Spamhaus ZEN status for public IPs via the DevTools backend.

API Mock Server

Define mock REST routes and intercept fetch calls client-side

Bandwidth Calculator

Estimate how long a file takes to transfer at a given connection speed — correctly handling bits vs bytes (Mbps vs MB/s) and SI vs binary size units

Broken Link Checker

Extract http(s) links from pasted HTML and check them via proxy

cURL to Code Converter

Convert cURL commands to code snippets in multiple languages. Parse cURL and generate JavaScript, Python, PHP, and more.

DNS Lookup Tool

Query DNS records and resolve domain names to IP addresses

DNS Propagation Checker

Compare DNS answers from global public resolvers and see propagation consensus instantly