"The entire area of the web is considered difficult terrain. Anyone moving through the webs must make a combat maneuver check or Escape Artist check as part of their move action, with a DC equal to the spell's DC. Creatures that fail lose their movement and become grappled in the first square of webbing that they enter."
If your moving *multiple* webbed squares on your turn (assuming your movement is high enough to overcome x2 cost to move more than 1 square), do you roll once per webbed square, or just one time for 'all' webbed squares? Seems one roll, since failure puts you in first square?
That looks right, otherwise you would have to roll 3 times for full 30' move speed, which would just be tedious