No see http://www.caa.co.uk/default.aspx?catid=60&pagetype=90&pagei... or http://www.boeing.com/commercial/aeromagazine/articles/qtr_3...

They are only certified to the maximum landing weight which typically is lower than the maximum takeoff weight. When an overweight landing (ie. the weight is higher then maximum landing weight) occurs engineers have to perform a thorough inspection of the plane structure - landing gear, spars, wings, wingbox

EDIT: thanks ForHackernews