DNS Quality/Overview Tools
DNS | DNSSEC | Dataset | Network | ToolCheck My DNS
Browser-based DNS resolver quality measurement tool. Uses the browser to generate many resolver queries and tests for features they should have, such as EDNS support, IPv6, QNAME Minimization, etc.
This test is also available as a CLI tool: https://github.com/DNS-OARC/cmdns-cli
DNSSEC Debugger
Analyze DNSSEC deployment for a zone and show errors in the configuration.
DNSViz
Gives an overview of DNSSEC delegations, response sizes, and name servers.
GitHub: https://github.com/dnsviz/dnsviz
DNS X-Ray
The website has an online test, which performs DNS lookups. These DNS lookups test if certain resource records are overwritten in the cache. The tool can then determine what DNS software is used, where the server is located, how many caches there are, etc.
EDNS Compliance Tester
Test name server of zones for correct EDNS support.
The Transitive Trust and DNS Dependency Graph Portal
Shows the trust dependencies in DNS. Given a domain name, it can show how zones delegate to each other and why. The delegation is done between IP addresses and zones.
Root Canary Project
The project used to monitor the first root KSK key rollover. Now it contains the paper "Roll, Roll, Roll your Root: A Comprehensive Analysis of the First Ever DNSSEC Root KSK Rollover" describing the experiences of the first root KSK rollover
Additionally, it includes a tester for DNSSEC algorithm support, which shows the algorithms supported by the currently used recursive resolver. It provides statistics about support for DNSSEC algorithms. It has a web-based test to test your own resolver and provides a live monitoring using the RIPE Atlas.