DeepL Translate is the most accurate translation website for translating articles from English to Spanish. It is a neural machine translation service that uses artificial intelligence to translate text with high accuracy. It can translate text, web pages, and even audio in real-time. It is also capable of translating PDF, Word, and PowerPoint files. Additionally, it has a built-in dictionary and a speech-to-text feature. It is widely considered to be one of the most accurate and natural-sounding translation tools available.