In the time frame of 1 203 days after October 15, 2021, records show uml.org passed 4 uptime tests. Uml.org has been up 4 times out of all the assessments conducted, with its last operation on January 15, 2025, resulting in a 200 status code. Based on tests, there have been no reports of uml.org becoming inoperable as of January 31, 2025. As of January 31, 2025, no response had an error, according to all of the responses that were received. Data reveals a contrast on January 15, 2025, with uml.org responding in 0.227 seconds against its 0.456 seconds average.