25 tests were conducted on the operability of 4um.cc over the 1 509 days starting on November 23, 2020. By returning a 200 status on March 29, 2021, analyses showed 4um.cc had 5 uptime instances in total from checks completed. 4um.cc was offline as a result of 80.00% of all inspections, or 20 times in total, with the most recent instance occurring on December 4, 2024. Every response attests to the fact that, as of January 11, 2025, no error status codes have been received. The response time of — seconds was recorded for 4um.cc on December 4, 2024, while 0.185 seconds is the average.