Is it permissible or forbidden to translate articles from foreign websites using Google Translate, and to put the original website's name as a source at the end of the article, without the owner's permission?

If the author of the article does not explicitly prohibit it, then there is no harm in quoting and translating articles published online, provided that they are attributed to their original source. This is because their public dissemination implies an implicit permission for their use. It should also be clarified that the translation is the work of the translator and not of the original author of the article.