Marketing pages tell you what competitors want you to think. Real signals come from elsewhere: G2 / Capterra reviews (especially 1- and 2-star), Reddit threads in your industry, Glassdoor reviews of their company (reveals execution risk), changelog pages (reveals roadmap velocity), pricing-page changes tracked monthly (reveals strategic shifts).
For public competitors, read the last earnings call transcript — CEOs accidentally reveal strategy under analyst pressure. For private competitors, watch their job postings: 'hiring 5 enterprise AEs' tells you they're moving upmarket. None of this requires expensive intel tools.