What does the sources check look for?
It looks at whether your content supports its claims with evidence rather than asserting them in a vacuum. Specifically:
- Outbound citations — links to authoritative, relevant external sources backing your statements.
- Quotations — quoted statements from credible experts or sources, properly attributed.
- Support for claims — that factual assertions are evidenced rather than left unsupported.
Well-sourced content with quotes and citations passes; a few unsupported claims is a warning; unsupported assertions with no sources is a fail.
How is it evaluated, and how is it scored?
GEObubbly detects blockquotes, cited claims and outbound links to authoritative domains that support your statements. It's a core GEO / LLM Readiness check worth 2 points, because evidence of grounding is a credibility heuristic answer engines use when deciding which sources to trust and cite.
Why citing sources matters for GEO
Content that supports its claims with quotations and outbound citations to credible sources signals rigour. AI systems, wary of hallucination and misinformation, lean toward sources that themselves cite evidence — it's a credibility heuristic that mirrors how a careful human evaluates a claim. So where you state a fact that came from somewhere, link to it; where an authority said something relevant, quote them and attribute it. This both strengthens the content for readers and marks it as the kind of well-grounded source an engine prefers to cite. Unsupported assertions, by contrast, are exactly what cautious answer engines route around — they have no way to verify them and a higher risk of being wrong. Link to genuinely authoritative, relevant sources where it helps the reader, not a token external link for its own sake, and never to low-quality or spammy destinations, which signals the opposite. Sourcing pairs with specific data and clear authorship to build the trust layer of GEO / LLM Readiness.