https://jdtutor.app/ weekly 1.0 https://jdtutor.app/courses weekly 0.9 https://jdtutor.app/about monthly 0.6 https://jdtutor.app/leaderboard daily 0.5 https://jdtutor.app/courses/dynamic-programming-101 2026-05-14T16:58:53.596Z weekly 0.8 https://jdtutor.app/courses/graph-hard-hard-hard 2026-05-17T15:40:48.876Z weekly 0.8 https://jdtutor.app/courses/ddddd 2026-05-17T15:59:08.275Z weekly 0.8