Critical thinking on Information sources

WHY

Why was this written?

Are they promoting any service?

Do they have an interest in the topic?

Have the vested interest?

Independent or Dependent?

How many sources of information?

Are the claims verifiable?

Are they purely opinion?

Who publish it?

Are they reliable?

Who wrote it?

Can you check who they are and whether they are experts/

Is this information up to date?