Tools

IPv6 connectivity check, AAAA lookup, speed test against the Grand Rapids server, subnet calculator, address expander, PTR lookup, ASN lookup, looking glass, and HE tunnel broker.

Detecting your connection…

AAAA / Website Checker

Enter a domain to check if it has an AAAA (IPv6) record. Uses Cloudflare’s DNS-over-HTTPS resolver.

Speed Test

Tests against the LibreSpeed server in Grand Rapids, Michigan, same location as RackGenius infrastructure.

mispeed.rackgenius.com · Grand Rapids, MI · LibreSpeed

Ping

Download

Mbps

Upload

Mbps

Press Start to test against the Grand Rapids server.

IPv6 Subnet Calculator

Enter any IPv6 prefix to calculate the address range, total addresses, and how many common subnets fit within it. Runs entirely in your browser.

Address Expander

Paste any IPv6 address to see the full expanded form, canonical compressed form, and ip6.arpa reverse zone string.

Reverse DNS (PTR)

Look up the PTR record for any IPv6 or IPv4 address. Automatically constructs the ip6.arpa or in-addr.arpa query.

ASN / BGP Lookup

Look up which AS and prefix covers an IP address, or look up an ASN directly. Uses the RIPE Stat public API.

Looking Glass

Ping, traceroute, and BGP route lookups from AS32002 in Grand Rapids, Michigan.

Open Looking Glass →

HE Tunnel Broker

Hurricane Electric’s free tunnel broker. If your ISP is IPv4-only, this gives you a working IPv6 address in a few minutes.

tunnelbroker.net →

Free · Static /48 block · Linux, Windows, macOS, routers

HE IPv6 Certification

HE’s free self-paced certification. Starts with basic addressing and works up to BGP configuration.

Start Certification →