Goal posts are considered a netminder’s best friends, and now goalies can play “I Spy” with their little-eye buddies.

The NHL recently installed GoPro cameras in each post to help replay officials in Toronto better determine whether pucks cross the goal line.

Holes were drilled out of the iron about 2 feet below the cross bar to house the silver-dollar sized high-definition cameras, which can swivel and zoom in and out to help locate pucks lost in goaltender equipment or tangled bodies.

“I don’t want to say it’s the definitive answer, but it’s one more tool we can use to tell us where the puck is,” said Mike Murphy, NHL vice president of hockey operations. “It’s nice to have in big games.”

Murphy commands the league’s centralized replay hub, which analyzes television broadcasts and cameras in every arena for his staffers to be the final arbiter of disputed goals.

The NHL has fixed cameras in the rafters that focus straight down to the goal line. In the playoffs, the networks also have cameras in the back of the nets to show the goaltender’s point of view.

But sometimes those angles are obstructed.

“What it would show better is if the puck is in the goalie’s glove in the air but still breaks the plane of the goal line, and give us a closer look at whether the puck completely crosses the line on the ice,” he said.

During the postseason, the cameras have affirmed no-goal rulings by on-ice referees, such as Blues goalie Jake Allen’s Game 2 cover-up against the Wild following a sharp carom off the glass in St. Louis.

Entering play Wednesday, the post cameras had not reversed any on-ice calls.

The NFL is considering using pylon cameras to help determine whether the ball breaks the plane of the goal line, but only ESPN has used the technology for its college football broadcasts.

“It’s good to have that,” said Wild goalie Devan Dubnyk. “It’s crazy how some angles can kind of toy with your eye. One more view can help make sure there are no mistakes.”

The NHL first experimented with the technology during the All-Star Game in January, and the league’s general managers voted to use the cameras late in the regular season to work out the kinks before the playoffs.

“There are certain challenges,” Murphy said. “If a player fires a shot off the post, we might lose one of the cameras, but that’s the normal wear and tear of the game. The technology’s worked well while it’s been in place, and we’re happy with it.”

Follow Brian Murphy at twitter.com/murphPPress.