The data indicates unitedstateszipcodes.org underwent 60 checks of its accessibility during the 2 297 days after August 2, 2019. During the whole testing period, unitedstateszipcodes.org was operational 22 times, the last uptime was on September 7, 2022, and an http status code of 200 was received. Reviews carried out as of November 16, 2025, indicated unitedstateszipcodes.org did not encounter any periods of inactivity. The most current error recorded from the 38 responses with errors was code 403 on November 4, 2025. The 0.053 seconds response time noted for unitedstateszipcodes.org on November 4, 2025, differed from its 0.308 seconds average.