Each parsed table includes a confidence_score field. This value reflects how well the table's HTML is structured and, in turn, how likely the parser extracted it accurately. It is not a measure of the quality or reliability of the data itself.
A high score (e.g. 0.9) generally means the parser is highly likely to have extracted the table accurately, while a low score (e.g. 0.35) suggests structural issues such as irregular column counts, nested rows, or merged cells that reduce parsing accuracy.
Learn more about confidence score in our Data Dictionary.