442 times uscis.gov's availability was checked over the 1 526 day time frame starting on January 27, 2021. 440 times uscis.gov's operability was confirmed through checks performed, including on March 20, 2025, with a 200 status code. As of April 2, 2025, there was no occasion of downtime reported for uscis.gov out of all inspections. Identified on January 17, 2025, code 403 was the most recent error noted within the 2 responses with errors. With 0.267 seconds as the average, uscis.gov responded in 0.192 seconds on March 20, 2025.