Dundalk Grammar School was a Charter School from 1739 to 1835. In 1835 it was reorganised, largely by the Revd Elias Thackeray, as the Dundalk Educational Institution. It was in abeyance during World War I, and in 1921 was revived by a local committee and reconstituted as Dundalk Grammar School.
The website uses feeds from Google Groups and also has a customised Calendar and Maintenance system. Slide shows are shown on screens in the school which run directly from the website gallery using the slide show option.