Over the course of 1 981 days starting on June 27, 2019, isf.es was checked 14 times for availability. Of all the checks that were made, isf.es returned a code 200 and was operational 14 times, with the most recent uptime on November 3, 2022. As of November 28, 2024, tests indicated that isf.es did not face any periods of inactivity. As of November 28, 2024, no response had indicated an error status, based on all replies received.