What is difference between spiders, crawlers and robots?

[Peter97]

Hello friends,

I am so confused about spiders, crawlers and robots so can anyone suggest me what is difference between spiders, crawlers and robots?

[Fli]

i think they are one. Many people use many words to express one thing. Robots is more general and used also in other things beside SEO.

[Peter97]

I think its similar

[Barbara]

These all terms are same. The crawlers are also known as spiders or bots/robots. the main purpose of them is to visit website and send information to their respective parent websites.

[Monga]

Spider - The browsers are like a program and to download the webpage.

Crawler – The program is automatically to follow the links are webpage.

Robots - It had automated computer program can visit websites. It will guided by search engine algorithms It can combine the tasks of crawler & spider helpful of the indexing the web pages and through the search engines.