1. A computer-implemented method of estimating web accessibility assessment and remediation efforts for one or more web pages, the method comprising: receiving an indication of one or more indicated web accessibility standards to be included in a total standard test effort estimate; receiving one or more web page counts corresponding to the one or more web pages; calculating standard test effort estimates for respective of the one or more indicated web accessibility standards, the standard test effort estimates being based at least in part on test factors associated with the indicated one or more web accessibility standards; calculating the total standard test effort estimate based on the standard test effort estimates; calculating a total test effort estimate based at least in part on the total standard test effort estimate and the one or more web page counts; calculating a web accessibility assessment and remediation effort estimate for the one or more web pages based at least in part on the total test effort estimate; wherein respective of the indicated one or more web accessibility standards comprise a plurality of individual guidelines, the plurality of individual guidelines comprising one or more sub-guidelines, the test factors being further associated with the plurality of individual guidelines and the one or more sub-guidelines; receiving an indication of one or more of the plurality of individual guidelines to be included in the standard test effort estimates, the receiving then indication of one or more of the plurality of individual guidelines comprising receiving an indication of at least one of the one or more sub-guidelines to be included in the standard test effort estimates, the standard test effort estimates being based at least in part on the test factors associated with the at least one of the one or more sub-guidelines; and wherein respective of the plurality of individual guidelines are associated with one or more of a plurality of priority or success criteria levels, the receiving the indication of one or more of the plurality of individual guidelines to be included in the standard test effort estimates comprising receiving an indication of at least one of the one or more of the plurality of priority or success criteria levels for at least one of the individual guidelines, the test factors being associated with the at least one of the one or more of the plurality of priority or success criteria levels for the at least one of the individual guidelines, the standard test effort estimates being based at least in part on the test factors associated with the at least one of the one or more of the plurality of priority or success criteria levels for the at least one of the individual guidelines.