Starting February 24, 2023, whatwg.github.io's availability was tested 4 times over the following 633 day period. As of November 18, 2024, every test conducted revealed that whatwg.github.io was either inoperable or experiencing technical difficulties. No unavailability periods occurred on whatwg.github.io, according to inspections made as of November 18, 2024. Among the 4 responses that encountered errors, the latest one, coded as 404, was recorded on July 21, 2024. The 0.056 seconds average contrasted whatwg.github.io's 0.007 seconds response on July 21, 2024.