With the huge growth of retail shops in the 19th century, it became less important, and the development of mail order and finally sales via the internet gradually reduced its significance in advanced economies except in a few fields, such as repairs and improvements to homes.
Products or services sold door-to-door are generally in one of seven industries: cable, telecommunications, solar, energy, security, landscaping and construction.
[4][5][6] In the United States, some communities attempted to criminalize this form of selling by passing what is known as a Green River Ordinance which bans all door-to-door sales.
Expansive databases of American households pull together demographic information, consumer data, and past-canvassing profiles to allow precise targeting of potential buyers.
[18] Restorationist groups, such as Jehovah's Witnesses, Seventh-Day Adventists and the Church of Jesus Christ of Latter-day Saints, are known for door-to-door evangelizing and proselytizing.