I'm making a finance website and apart from our core features, I also want to show the latest news.
These news articles are scraped from RSS feeds (full-article scraping) of some reputed news sources (ex.CNN), but posts also have
rel=canonical tags to their original source. All links in posts are redirecting to original source, but news will be mostly scraped word-for-word.
Is it going to negatively impact my SEO? Should I consider using
robots.txt? I just want to curate news articles for the ease of our users. I really don't want to get any SEO benefits from these articles as our core business is not showing the news.