1 availability checks were conducted for usa.essilorvisionfoundation.org during the 704 days beginning January 19, 2023. With the last time on January 19, 2023, when a code 200 was returned, usa.essilorvisionfoundation.org was up 1 times out of all the checks conducted. As of December 24, 2024, evaluations showed no periods of inactivity for usa.essilorvisionfoundation.org. The status of all received responses has been noted as error-free as of December 24, 2024. While its average response time is 1.302 seconds, usa.essilorvisionfoundation.org replied in 1.302 seconds on January 19, 2023.