It was developed to be a more intuitive version of the first online HTML validator written by Dan Connolly and Mark Gaither, which was announced on July 13, 1994.
Unapređen je u intuitivniju verziju prvog online HTML validatora, napisan od strane Dan Connolly-a i Mark Gaither-a, koji je objavljen 13. jula 1994. godine.