Aggregates page SEO info: pages indexed (Google, Bing, Yahoo, Yandex, Baidu, Sogou, etc.), cache stats (Archive.org), link stats (internal, external, nofollow), page metadata (title, meta‑keywords, H1/H2, ALT text), robots.txt, sitemap, DNS lookup, geo IP, WHOIS, and traffic ranks (Alexa, Compete).