| WebQual 1.0 | Evaluation of business school websites (Bath, LBS, MBS, WBS) | Ease of Use, experience, information, communication & integration | Focused on navigation, visual design, content quality, and external communication. |
| WebQual 2.0 | Evaluation of UK online bookstores (e.g., Amazon, Blackwell’s) | WebQual 1.0 dimensions+interaction quality | Added interaction quality: personalization, empathy, responsiveness, and security. |
| WebQual 3.0 | Evaluation of online auction platforms (e.g., Amazon, eBay, QXL) | Web Information quality, web interaction quality, site design quality | Included accuracy, security, design appeal, and transaction reliability tailored to auctions. |
| WebQual 4.0 | Evaluation of e-commerce platforms (e.g., Amazon, BOL, Internet Bookshop) | Usability, information quality, service interaction quality | Refined into usability, content relevance, and secure/empathic service interactions. |