Danby's strike, coming out of 40 yards, was added by a finish from Matthew Daws and Sam Calvert, earning a comfortable three-pointer against the bottomside Yorkshire amateur.
Selby's three points narrow the gap between the playoffs to seven points, but the fifth Worsbrough Bridge has the game.
The town began strong as Ned Dry curled the shot narrowly. He was later rejected by Fabio Intimbo after Kaden McGrath took it home from an amateur centre-back in Yorkshire.
With halftime approaching, the Robbins took the deserved lead with an incredible style.
After Danby invaded the ball's universe, an astonishing effort from 40 yards caught Intumbo off guard and snuggled up as one of his season's goals.
Early in the second 45, the leads doubled and the set pieces were in place.
Declan Racher's free kick was flicked dry and skillfully, and Doe was perfectly located at home from close range.
This time it was 75 minutes and 3 minutes when another Raycher delivery from a corner kick found Calvert.
The towering striker rose to the highest to power the header beyond Intumboo, sealing off three persuasive points from Selby.
The town remains in 8th place, with five matches remaining in the Northern County Eastern League Division 1 campaign.
Selby welcomes fourth-placed Brigtown to Plant Layer Stadium in Fairfax on Saturday, March 15th during his next activity.
