1 tests were conducted on the operability of nationalharbor.com over the 821 days starting on August 20, 2022. Most recently on August 20, 2022, with a 200 status code, nationalharbor.com was accessible 1 times, out of every test performed. No issues related to downtime were found throughout the assessments of nationalharbor.com as of November 18, 2024. All received responses confirm that, as of November 18, 2024, there are no errors in any of them. On August 20, 2022, 2.919 seconds contrasted the 2.919 seconds average response time of nationalharbor.com.