How do spiders walk on their webs without getting stuck?

Question

Spiders' prey get stuck on sticky webs, but spiders can move very quickly over webs, without any apparent stickiness.

Answer 1

"won't you come into my parlor?",said the spider to the fly. the tricky spider is pretty clever,isn't he? he knows the fly will be caught and he'll be able to scamper along and have himself a nice meal!
but if the sticky web clings to the fly and traps him,why doesn't it cling to the spider? the answer to this will surprise you. it does! a spider can be caught just as easily in his own web as a fly is.
the reason this doesn't happen is that the spider is "at home" in his own web. he knows his way around. and when the web was spun originally, the spider made sure that there would be "safe" threads to use, threads he could touch without sticking to them.
there are many kinds of silk that a spider produces. the sticky kind is used in the web to catch its prey. but there is also a non-sticky kind, and this is used to make the strong, supporting spokes of the web. the spider knows which is which, and he simply avoids the sticky ones! he can do this because he has a remarkable sense of touch.

Answer 2

OK, the way I understand it is they have the ability to create sticky and
non-sticky web material. They make their web with both but know where to
walk and not to walk. And, yes, they do eat their webs. I have to assume
they're very consistent in their web design. That way they always know where
the sticky and non-sticky parts are. Seems to me Teflon coated toes would
work much better.

Answer 3

They only walk on the non-sticky strands.