Cobweb

noun

1. A spiderweb, or the remains of one, especially an asymmetrical one that is woven with an irregular pattern of threads.
2. One of its filaments; gossamer
3. Something thin and unsubstantial, or flimsy and worthless; valueless remainder.
4. An intricate plot to catch the unwary
5. A web page that either has not been updated for a long time, or that is rarely visited