English Language Learning (ELL) websites provide excellent opportunities for language learning. In order to provide interactive, fun learning experiences, many teachers opt to use ELL websites and end up facing problems regarding the websites' accessibility and usability. Websites' quality is a key factor for users' acceptance and satisfaction. The proliferation of a variety of free and unique website testing tools has made it possible to quickly assess the quality of websites. This quantitative study aims at evaluating 5 free ELL websites in terms of Search Engine Optimization (SEO), performance, usability, social aspects and links using an automated evaluation tool i.e., SEOptimer. All in all, none of the 5 websites evaluated scored the overall grade A+ which indicates a critical need to improve the 5 aspects evaluated in order to increase their quality. This study contributes to the improvement of selected free ELL websites. Besides, it substantially advances the online learning trend in Malaysia by accentuating the potential free ELL websites to be explored and utilised by teachers to provide authentic English language learning experiences. Above all, the 5 aspects evaluated by SEOptimer form a comprehensive guide which will be useful for the curriculum developer and Ministry of Education to develop personalised online resources and websites for Malaysian primary students in ensuring quality education for all.