IPv6 Test vs IPv4: Testing Errors & Resolution Issues

Take a look at the difference between how a page loads (msnbc.com)  from an IPv6-Only monitoring location and a monitoring location with native IPv6 or 6to4 translation. You may want to consider running an IPv6 test on your own websites after seeing these results.

IPv6 Test from IPv6-Only Monitoring Location

Here is a waterfall chart showing a web page loading from an IPv6-Only location. You can see there are several  elements attempting to load from 3rd party sites that are not able to resolve IPv6 addresses. This may cause unexpected performance issues including pages that do not completely load.

[note note_color=”#fff7f7″ text_color=”#000000″]Note:  You will receive errors if  any elements on your site do not resolve in IPv6 (including third party elements such as CDN content or other scripts and images). Only utilize the IPv6-Only location if you are prepared to deal with potential errors.[/note]

Testing from IPv4 Monitoring Location

IPv4 Test - No Webpage Errors
IPv4 Test Shows No Webpage Errors

Here you can see how the results differ when a task is recorded from a location that is able to utilize IPv4. Because this location is able to resolve both IPv4 and IPv6, all elements on the page load successfully, giving the site visitor the proper user experience.

As you can see in the comparison below, there are actually images, links and navigation that do not display from the IPv6 test location:

Missing Elements - IPv6 Test vs IPv4 Test
Full page load using IPv4 Test (Left) | Partial Page Load from IPv6 Test Location (Right)

In conclusion, even if you’re ready to support IPv6, you need to run an external synthetic IPv6 test using the Dotcom-Monitor IPv6-Only location to ensure all of the elements on your website are able to load properly. If you are an existing Dotcom-Monitor client, you can simply edit your devices and add the IPv6-Only location to the devices. If you are not yet a client, sign up for the free 30 day trial – no credit card required and setup an IPv6 test on your website for free.

Latest Web Performance Articles​

Top 20 Server Monitoring Tools of 2023

A server monitoring tool is software that monitors the operation and general health of servers and other components of IT infrastructure. These tools continuously track

Top 25 Server Monitoring Tools

In this article we give our expert picks of the top 25 server monitoring tools to help monitor your website’s uptime and give your users the best experience, starting with our own solution at Dotcom-Monitor. Learn why server monitoring is an essential part of any monitoring strategy.

Top 20 Synthetic Monitoring Tools

Synthetic monitoring allows teams to monitor and measure website and web application performance around the clock from every conceivable vantage point, and to receive alerts before issues begin to impact real users. Here are our top picks for synthetic monitoring tools, leading with our own at Dotcom-Monitor.

Web Monitoring Tools, Uptime & Your Business Online

By using a web monitoring tool, you can be sure your site will be available at all times, no matter where a user might be around the world. You will also know when the performance of your site begins to suffer or experiences downtime, and Dotcom-Monitor will be there to help you resolve these issues.

How to Monitor HTML Canvas for Load and Uptime

Are you responsible for ensuring your HTML Canvas is always available and performing optimally? If so, you need to know how to monitor HTML Canvas for load and uptime. This blog post will explain how you can do that effectively using various monitoring tools.

Start Dotcom-Monitor for free today​

30-Day Free Trial. No Credit Card Required.