Over the past 1 255 days from June 13, 2021, css-validator.org's availability has been checked 4 times. The most recent of 4 instances of uptime out of all the checks that were done, on November 19, 2024, css-validator.org was active with a 200 status code response. According to all assessments completed as of November 19, 2024, css-validator.org experienced no downtime. It has been confirmed by all replies received as of November 19, 2024, that there are none with an error status. Data from November 19, 2024, shows a response time of 0.667 seconds for css-validator.org, contrasting with the average of 0.455 seconds.