1 times in the last 689 days, from January 8, 2023, to the present, cisl.columbia.edu's accessibility has been checked. In 1 instances of operability across all conducted checks, cisl.columbia.edu's most recent uptime on January 8, 2023, returned a code 200. All inspections of cisl.columbia.edu indicated no inoperability issues as of November 28, 2024. As of November 28, 2024, no reported response had an error status out of all the replies that were received. The response time recorded on January 8, 2023, for cisl.columbia.edu was 0.770 seconds, contrasting its average of 0.770 seconds.