Webtag builds on the Tagenerator tool, it takes into account the interactions of the tag with the primers which are short single-stranded nucleic acid.
This web based service builds on the Tagenerator tool, but is very fast because all tags are pre-generated and stored in a database. It is also a significant improvement since Webtag takes into account the interactions of the tag with the primers to be used in the experiment. A primer is a short single-stranded nucleic acid utilized by all living organisms in the initiation of DNA synthesis. 
