A survey of 96 shopping websites taken by more than 14,000 consumers ranked Homebase.co.uk and B&Q's DIY.com as 92nd and 95th respectively, revealed Which? this week.
The rankings were based on customers' satisfaction the last time they shopped on the site, incorporating price, product stock, delivery, website usability and the returns process.

Topping the chart was LizEarle.com, scoring 94% overall, with John Lewis just behind at 89% and Amazon third with 84%. B&Q, meanwhile, scored 54% and received just one star for website usability.

Which? executive director Richard Lloyd said: "With household budgets squeezed, it's no surprise that many more consumers are doing more of their shopping online, with seven out of ten people saying they shop online for cheaper prices.

"But it's clear some online retailers need to raise their game, with people complaining of delays with deliveries, faulty items and poor stock availability.

"Although we've found many are providing excellent customer service, we want to see the rest not only meeting the minimum fair trading rules but catching up with the best."