Citability and evidence checker

Three content changes have measured, published effects on AI visibility: statistics, quotations and cited sources. This checker tests your page against them, and against the one tactic proven to backfire.

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6 checks · 12% of the Slurp Score

Why it matters for AI search

The Princeton GEO paper tested nine tactics across 10,000 queries. Quotations lifted visibility 40.7%. Statistics lifted it 31.5%. Citing sources lifted it 29.1%. Keyword stuffing cut it 8.6%.

One caveat most tools skip: the follow-up C-SEO Bench study found these gains shrink as more sites adopt the same tactics. That is why this category carries 12% of the score instead of half. The checks still matter. A page an engine can quote beats a page it has to paraphrase.

What GetSlurp checks

This list comes straight from the audit engine, so it always matches what the extension and MCP server actually run.

cite.statisticsGraded

Adding statistics produced a +31.5% visibility lift in the Princeton GEO experiments; numbers are what LLM answers quote to sound grounded.

Fix: Add concrete, attributed numbers (percentages, counts, dates, measurements) to the page's key claims.

cite.outbound-citationsGraded

Citing sources produced a +29.1% visibility lift in the GEO experiments and was the strongest tactic in combination with others.

Fix: Link claims to authoritative external sources from within the body text.

cite.quotationsGraded

Quotations from named sources produced the largest measured visibility lift (+40.7%) in the GEO experiments.

Fix: Add attributed quotations from named people or organizations where they support the argument.

cite.claim-evidenceGraded

Answer engines verify claims against sources; a claim paired with its evidence in the same passage survives verification.

Fix: Pair each numeric or factual claim with its source in the same paragraph ("according to...", a study link).

cite.keyword-stuffingGraded

Keyword stuffing measurably reduced AI visibility (-8.6%) in the GEO experiments - one of the few tactics proven harmful.

Fix: Rewrite repetitive keyword-dense passages in natural language.

cite.readabilityGraded

Fluency optimization lifted visibility +27.8% in the GEO experiments; long tangled sentences quote badly.

Fix: Shorten sentences (target under ~25 words average) and prefer active voice.

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