So Skyvector is an approved tool for real world flight planning? When I was a flight instructor Skyvector was a nice tool to cross-check what you have prepared using official resources (which are Jeppesen or Navblue chart services). It wasn’t an official or reliable source for real world flight preparation. They might have a subscription service of some sorts maybe now, I doubt the free Skyvector is suitable for real world navigation, I would definitely check against an official source before using it in real life.