ac4.ei.columbia.edu

The accessibility of ac4.ei.columbia.edu has been tested 0 times over the past 0 days starting on January 30, 2025. As of January 30, 2025, all checks conducted showed that ac4.ei.columbia.edu was down or experiencing issues. According to the checks conducted as of January 30, 2025, ac4.ei.columbia.edu did not encounter any periods of unavailability. As of January 30, 2025, the replies that were received indicated that there were no reported errors in the responses. Recorded at 0 seconds on January 30, 2025, ac4.ei.columbia.edu's response time differed from its 0.000 seconds average.