Looking at the records, amex.co was tested for operability 1 times over the 1 266 days starting June 1, 2021. Amex.co was up 1 times during the course of the testing, with the most recent uptime occurring on June 1, 2021, responding with a code 200. All testing of amex.co as of November 19, 2024, found no instances of inoperability. Based on the replies, there were no indications of errors in any of the responses as of November 19, 2024. The 2.028 seconds average contrasted amex.co's 2.028 seconds response on June 1, 2021.