… to the!

Test a website's page using IPv4 and IPv6 connections.
Compare two screenshots of the same page.

Capture screenshots

IPv4 result

Once retrieved via an IPv4 enabled machine and internet connection, the page's screenshot will appear here.

IPv6 result

Once retrieved via an IPv6 enabled machine and internet connection, the page's screenshot will appear here. If no AAAA record is found, we'll let you know.

Why an IPv6 page screenshot?

Few users on the internet have access to both IPv4 and IPv6 connections. Consequently they are unable to know for sure if a website is actually accessible over IPv6 connections.

Sure, there are services that 'check' if a connection or domain is IPv6 ready, but they usually lookup DNS NS, AAAA and CNAME records only, leaving out an important part of the puzzle: server configuration. retrieves the actual page and all its assets (images and basic scripts) and then creates a screenshot of it. If the two representations look similar, then you're in the clear. If they do not, you've got work to do .

The screenshots look different!?

The cause could be found by inspecting a number of factors:

  • If the page's texts appear on both screenshots, but styles or images seem off, chances are there was a resource timeout when requesting the page on our end, but it could also be that these resources utilize a different domain that is not IPv6 ready. So, the cause is worth investigating.
  • Alternatively, if the texts are indeed completely different, ie. you see a HTTP error message in the screenshot, it is likely that the DNS records are present, but they may point to the wrong IPv6 IP, or the server is configured incorrectly for handling the domain over an IPv6 connection.