2 times opticsjournal.net's availability was checked over the 1 942 day time frame starting on July 26, 2019. Opticsjournal.net returned a code 200 and was reachable 2 times out of all conducted tests, the last time being on July 26, 2019. Throughout all inspections conducted as of November 18, 2024, opticsjournal.net experienced no periods of downtime. Based on the responses received, it has been confirmed that there were no errors as of November 18, 2024. On July 26, 2019, opticsjournal.net's response time differed from the average, being 1.874 seconds compared to 1.876 seconds.