Here is one of my office listings. It is a short sale of which the seller is willing to entertain back up offers.
Here is how it appears on Trulia. No indication of an offer.
Here is how it appears on MY website. Shows you that the property does have a "Pending" offer.
Please, if you want the most accurate information on properties create an account in Rockford Real Estate Data is updated every 24 hours and will show you if the home has pending offers.