Purplebricks has shrugged off negative reviews on allAgents.
Of the 24 reviews, almost all give the lowest possible one-star rating.
A spokesperson for Purplebricks said: “More than any other estate agent we actively encourage our customers to leave feedback, good or bad, and we will always listen to it, improve and make amends where necessary.
“We focus our customer service efforts on feedback received through Trustpilot where we can ensure customers are genuine and avoid issues of mis-use.
“With over 11,000 Trustpilot reviews and a rating of excellent – compared to just 24 reviews on Allagents – it is clear that this is also the preferred channel for the vast majority of customers.”
Martin McKenzie, of allAgents, said: “It is not unusual for allAgents to be an attraction for customers who may feel they may find it difficult to get their critique heard especially where their agent has thousands of five-star testimonials.
“In addition allAgents has an excellent dominating presence on the main search engines when the public are searching for reviews for any UK agent by name, including Purplebricks.
“To date Purplebricks have never contacted allAgents to request the removal of a review.”
McKenzie added that this coming year will be one of accelerated growth for allAgents.
He said: “Our website has been discovered by millions more users in recent months because of our website development, search engine optimisation and Google’s changes.
“Not surprisingly, many of these new users are agents who are finally sitting up and accepting the influence that ignoring customer feedback could have on their bottom line.
“We are also keen to keep passing on the message to the public about general review websites where there is a ‘closed platform’ and where feedback can only be posted by ‘invitation’.
“This is what allAgents have been battling since 2006 – agents cherry-picking reviews and the customers who write them.”