From September 28, 2021, through the next 1 190 days, 1 availability tests were completed for css-ref.com. The latest uptime on September 28, 2021, resulted in a code 200, indicating that css-ref.com was operational in 1 instances across all tests. As of January 1, 2025, assessments for css-ref.com showed no periods of inactivity. Responses obtained as of January 1, 2025, have been confirmed as not containing any error statuses. The September 28, 2021, response time of css-ref.com differed from its average, being 1.312 seconds against 1.312 seconds.