there are some articles with 2 or more urls. like this:
1. /essays/technical-essays/180-technologies/247-megapixel 2. /essays/technical-essays/247-megapixel 3. /essays/technical-essays/technologies/247-megapixel 4. /essays/technical-essays/technologies/247-
what is this? why this happens? url number 3 is the right one.
why the url number 4 happens? there are a lot like this one.
google consule refers to this as "Duplicate title tags"