What is the difference between a web and cobweb?

One of the most despised species in human kind are Spiders. Some scientists even believe we are now born with a fear for them. Many are fear it but others find them just annoying, especially those webs in the warehouse which is barely visible to the human eye. Sometimes we hear people say a spider’s web then sometimes they say cobweb so what is actually the difference between these to words?

If you thought it was hard for us to see these webs, it’s on a whole other level for these insects. That is why there are always tons of spiders stuck on corners of an old building. Talking of old, when a place gets old, dust collects and when that happens a web becomes a cobweb. The word cobweb came to be in the 13th century, it had evolved from the word Coppe which meant spider in those days.