IPv6 Web Resource Checker
Enter URL to analyze
Hosts
| Hostname | DNS | Protocols | ASN | AS Description | IP Addresses | Network Name | ||
|---|---|---|---|---|---|---|---|---|
Screenshot
Introduction / Help
This is the IPv6 Web Resource Checker (webres6). It checks IPv6-only readiness of a Web page or app by crawling a given URL using Selenium and analyzes whether all page resources have been loaded via IPv6.
The IPv6-only Scores show the proportion of resources that could successfully be loaded IPv6-only based on HTTP and DNS transactions.
Webres6 was inspired by Paul Marks' IPvFoo browser extension. While IPvFoo is more flexible and interactive, Webres6 can be run as a service and allows IPv6-only testing without installation or IPv6 on the users' client as well as automated analysis.
Further documentation can be found on the IPv6 Web Resource Checker project page on GitHub.
Limitations
The Selenium automation just loads the URL in a "fresh" browser. No efforts are taken to hide this being a robot. No cookie consent interactions and delayed on-scroll content loading takes place. Because we don't have long-term cookie state and modern Web pages tend to react to browser state, this will most likely result in some resources, especially sophisticated advertisements and analytic scripts, not getting loaded like in a normal browsing session.
No authentication/login takes place - this is only possible in a dedicated setup through custom extensions.
The DNS checks only verify whether the hostname can be resolved from a recursive IPv6-only resolver. To get a complete picture, it is necessary to take a closer look at whole DNS delegation chain of all hosts involved for IPv6-only realness. You may want to try ready.chair6.net or running dig +trace from an IPv6-only host for that.