23 availability checks were conducted for kelas4d.app within a 226 day period starting on April 7, 2024. Each evaluation completed as of November 20, 2024, found kelas4d.app to be unreachable or having problems. All assessments indicated kelas4d.app faced no periods of inoperability as of November 20, 2024. There were 23 errors among the recorded responses, with the most recent error, code 403, occurring on October 14, 2024. 0.294 seconds was the recorded response time, against an average of 0.268 seconds, for kelas4d.app on October 14, 2024.