In the period of 1 206 days from August 7, 2021, uptime checks performed for koppers.com reached a total of 1 as per the data. Koppers.com has received 1 successful responses (code 200) during all check attempts, with the most recent access occurring on August 7, 2021. Downtime was not observed for koppers.com, according to the checks conducted as of November 25, 2024. As of November 25, 2024, no errors have been encountered according to all received responses. On August 7, 2021, in contrast to the average of 0.574 seconds, for koppers.com recorded a response time of 0.574 seconds.