The stalemate was the Rocks' third game without defeat and although they couldn't find a win, it was a decent point on the road.
In the Southern Combination premier, Chichester extended their lead at the top to six points with a fine 5-1 romp at Crawley Down Gatwick, on the same day closest pursuers Newhaven slipped up at home.
Scott Jones, Kaleem Haithem, Lorenzo Dolcetti, Josh Clack and Matt Axell were all on target.
There was disappointment for Pagham as they lost 1-0 at Horsham YMCA, Jack Hartley's 35th-minute strike condemning them to defeat.
In division one Midhurst had goals by Mark Broughton and Gary Norgate to thank for a 2-1 win at home to Worthing United, who had taken an early lead through Reece Tanner.
Selsey fought back from 2-0 down to draw 2-2 at Hailsham, their scorers Bradley Higgins-Pearce and Tom Atkinson.
A depleted Sidlesham lost 3-1 at home to AFC Varndeanians, with Ryan Chittock's goal all they had to show.
Division two action included a 4-1 win for Bosham at Upper Beeding. Mark Desi (2), Alex Barnes and Max Terry got the goals - all in the second half.
In local rugby, Chichester's winning run ended with a 28-20 home defeat to Thurrock in London one south but Bognor leapfrogged opponents Sandown and Shanklin with a 14-13 victory at Hampshire Avenue that took them to second place.
Get all the local football and rugby action in the Observer - out on Thursday