13sf.com's availability checks had carried out over the past 1 945 days, starting on July 26, 2019. Out of all checks conducted, sf.com was operational 13 times, with the latest successful check on November 20, 2024, returning a 200 status code. No periods of inactivity were observed for sf.com in any of the checks conducted as of November 22, 2024. Based on the replies obtained as of November 22, 2024, no responses were received with error statuses. The response time recorded on November 20, 2024, for sf.com was 0.110 seconds, contrasting its average of 0.106 seconds.