Latest round of the site-crawl series: ran the free RankForge crawler against four product-analytics tools — amplitude.com, posthog.com, hotjar.com, and fullstory.com — 10 pages each, starting from the homepage.
What I ran
No account needed, so this is reproducible:
-
POST https://rankforge.cc/api/analyzerwith{"seed_url": "..."}, then pollGET /api/analyzer/<id>untilstatusiscompleted. - The crawler follows internal links breadth-first from the seed, caps at 10 pages for the anonymous tier, scores every crawled page's internal authority (PageRank-style, 0-100), flags orphan pages (zero inbound internal links from the crawled set), and audits every internal redirect to its final hop.
- Raw JSON for all four runs:
content/analyzer_20261005b_<host>.json.
hotjar.com: 9 self-redirects spend 36 internal links, a new high for this series
9 single-hop 301 redirects, affecting 36 internal links — more than any site logged in this series so far (the previous high was fly.io's 35, from yesterday's PaaS batch). Average internal authority: 43.95.
posthog.com: 7 orphan pages, including a leftover test page
7 of the 10 crawled pages have zero inbound internal links from anywhere else the crawler reached in the same pass — /notes/test-note among them, a page name that reads like dev-environment leftovers live on the production domain. Average internal authority: 25.09, the weakest of the batch.
fullstory.com: 4 orphans, 5 redirects spending 12 links
A smaller version of the same pattern — 4 orphan blog pages plus 5 internal redirects affecting 12 links. Average internal authority: 28.54.
amplitude.com: clean sheet
Zero orphan pages, zero internal redirects detected, and the strongest average internal authority of the four at 43.34.
Try it on your own site
Same checks (orphan pages, near-orphans, internal authority distribution, redirect-chain hops, external nofollow audit) run in one pass, no signup: rankforge.cc/audit.
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