Observed arrival · 2026-10-22
Sourcegrade asks where the numbers came from
Sourcegrade takes a URL and traces the sources linked to numerical claims on the page.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Researchers and AI-agent builders
- Worth noticing
- The displayed Failory audit checks ten figures against five pages and notes when robots.txt blocks a cited source.
Field notes
The sample rubric distinguishes citation coverage from successful source tracing: a page can cite many figures while checked sources remain unreadable or unsupported. The displayed rules say a non-primary page needs at least one checked claim for a letter grade, while an F requires three checked claims. The examples also report fetch limits, so an unverified source is not necessarily a disproven claim.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue