Reply from Greenfield Puppies. According to Similarweb data of monthly visits, greenfieldpuppies.com’s top competitor in August 2023 is lancasterpuppies.com with 978.7K visits. greenfieldpuppies.com 2nd most similar site is keystonepuppies.com, with 181.6K visits in August 2023, and closing off the top 3 is puppyspot.com with 1.1M.