What do the terms crawler, indexing, referencing and ranking mean?

What do the terms crawler, indexing, referencing and ranking mean?

The crawl is the what makes robots when they browse a web page.

A web page is indexed when it is in the databases of search engines. We can also say that the page is referenced.

A web page is ranked when it is well positioned in search engines on given keyword with a qualified traffic-generating potential.

Chronologically, a web page is crawled firstly, then indexed and with some luck, ranked.

A non-indexed web page therefore never stands a chance of being ranked. Just so we’re clear.

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