The type of domain provides you a hint as to the reliability of the website at which you are looking.
.edu (educational institution)
.gov (government)
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These are more likely to be reliable and unbiased. |
.org (non-profit organisation)
.asn (non-commercial organisation)
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Sometimes these organisations can be biased toward one side of an issue that is actually quite complex. |
.com (commercial site)
.net (network)
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Try to avoid these sites as they are likely to be unreliable.
.net is the domain given to any site that doesn't fit into the other domain categories.
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If you find a .com or .net site that you think is ok, look at the currency, reliability, authority and purpose to see if your suspicion is supported by evidence.