From November 29, 2022, forward over the next 736 days, there were 1 checks done on web4.w3.org's uptime. Web4.w3.org returned a 200 status code 1 times out of analyses that was conducted, with the last one occurring on November 29, 2022. Reports as of December 5, 2024, indicated that web4.w3.org had never experienced periods of inactivity. No response with an error status was reported, as per replies received as of December 5, 2024. The 0.520 seconds response time recorded for web4.w3.org on November 29, 2022, contrasted the 0.520 seconds average.