The total uptime checks of openseamap.org performed in the 1 463 days from September 14, 2021, reached 6. Throughout all conducted assessments, openseamap.org showcased functionality 6 times, with the most recent uptime on January 9, 2025, resulting in a code 200. During openseamap.org checks as of September 16, 2025, no downtime occurrences were reported. As of September 16, 2025, all received replies have confirmed that there are no errors in the responses. On January 9, 2025, records show a openseamap.org response time of 1.246 seconds, compared to an average of 1.262 seconds.