Starting on March 7, 2021, the operability of stacks.cdc.gov has been tested 3 times over the last 1 365 days. With the most recent 200 status code response on June 15, 2021, tests show stacks.cdc.gov was online 3 times out of all the checks that were done. Checks that were done as of December 2, 2024, show that stacks.cdc.gov was never unavailable. The status of every response received has been confirmed error-free as of December 2, 2024. Data shows a 1.936 seconds stacks.cdc.gov response time on June 15, 2021, compared to 1.853 seconds on average.