At 2:30 on April 29, 2022, the maintenance of the website code has been completed, the tracker URL has changed from hdfans.org/announce.php to hdfans.org/api/announce, and the original announce.php will no longer be maintained. In addition, a supplementary card is added, one with 1000 magic power, which is limited to the supplementary signature of the current month. At present, there will be a 502 error in website access because there are too many simultaneous visits. It will be better later. If there is a major bug in the detection, it may be rolled back.