Over the period of 2 110 days starting from February 12, 2019, optical-online.com has been checked for availability a total of 4 times. Optical-online.com was reachable 2 times, according to availability tests, including on April 8, 2022, when a code 200 was received. The data shows that 50.00% of the time when checked, totaling 2 instances, optical-online.com was down, with November 19, 2024, being the latest occurrence. As of November 22, 2024, it has been reported that all received responses are free from errors. — seconds was optical-online.com's November 19, 2024, response time, contrasted by a 2.157 seconds average.