Spelling mistakes, grammatical errors, and factual inaccuracies are a good first sign that the information may not be accurate (example).

Hoax websites abound on the web and are often difficult to detect (Demo wto.org ; Demo gatt.org ).

Links to other websites will often reinforce the information (example).

Well-organized information indicates that care has been taken with the website (example).

A bibliography is an indication that the author has researched the information (example).