Passage extractability: can AI quote your page?
Proofsource's passage extractability score checks whether AI engines can lift a clean, self-contained answer from each passage on your pages. It scores passages, points at the ones that are hard to quote, and can scan your whole site or only the URLs you choose, including product pages in your shopping feed. Built for content and SEO teams writing for AI answers.
| Passage | Score | Note |
|---|---|---|
| How to connect Driffle to Zoom | 92 | Clear, self-contained |
| As mentioned above, it also... | 38 | Depends on earlier text |
| Pricing table (image) | 12 | Answer is in an image |
| Works with Zoom, Meet and Teams | 81 | Names the answer in the first line |
| Click here to learn more | 24 | No stand-alone answer |
Passage extractability score, in short
The facts, ready to quote.
- What it scores
- Each passage on a page, for how easily it can be quoted
- Scope
- Your whole site, only the URLs you choose, or the product pages in your shopping feed
- Output
- Passage scores and the passages that need work
- Engines it helps
- Up to 10 AI engines by plan: ChatGPT, Perplexity, Claude, Google AI Overviews, Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI
Passage extractability, explained
Passage extractability is how easily an AI engine can take one passage from your page and use it as an answer. Engines read pages in chunks. A passage that states the answer plainly, names the subject and stands on its own is easy to quote; a passage that relies on the paragraph before, hides the answer in a long story or depends on a table image is hard to quote.
Proofsource scores the passages on a page and shows which are easy and hard to extract. You can scan the whole site or narrow the scan to specific URLs, and run the same check on product pages from your shopping feed.
How it works
Score how easily AI engines can lift a clear answer from each passage of your pages, and scan product feeds the same way.
Pick pages
Scan the whole site or choose specific URLs.
Split into passages
Each page is read as the passages an engine would see.
Score each passage
Every passage gets an extractability score.
Fix the weak ones
Rewrite passages that are hard to quote, then scan again.
See it in the product
Screens from the Proofsource app, drawn with sample data for an example brand.
| Scan | Pages | Average score |
|---|---|---|
| Whole site, Oct 28 | 42 | 71 |
| Pricing and integrations, Oct 21 | 6 | 64 |
| Shopping feed, Oct 14 | 18 | 58 |
Every capability, live today
3 shipped capabilities behind passage extractability score, each in the product now.
Passage extractability scan
Scores each passage on a page for how easily an engine can quote it, and points at the ones that are hard to quote.
Scan chosen URLs
Narrow an extractability scan to the URLs you choose.
Shopping feed scan
Scan the product pages in your shopping feed, narrowed to chosen URLs if you like.
Who it is for
Write quotable pages
See which passages engines can lift and rewrite the rest.
Audit key pages
Scan only the pages that matter for AI answers.
Check product pages
Score product pages from your shopping feed.
Show page fixes
Before and after scores make content work visible.
Why it matters
Built for quotation
Scores reflect how engines read pages in passages.
Focused scans
Scan the pages that matter, not the whole site every time.
Products too
Feed pages are scored the same way.
Actionable
Low-scoring passages say why.
Google AI OverviewsGoogle AI Mode
Passage extractability score: Proofsource and other tools
Several tools audit pages for AI readiness; here is what each lists, from their own pages.
| Capability | Proofsource | Rankscale | Scrunch | Otterly.AI | Semrush |
|---|---|---|---|---|---|
| AI readiness page audit | YesPassage extractability score per page | YesAI readiness score with 90+ checks and fixesSource | YesDeep audits flag content gapsSource | YesStructured data and AI-readiness reviewSource | RelatedAI Search Health widget in Site AuditSource |
| Score per passage | YesEvery passage scored | Not listed | Not listed | Not listed | Not listed |
| Scan chosen URLs | YesNarrow the scan to chosen URLs | Not listed | Related5, 10 or custom page audits per planSource | Not listed | Not listed |
| Whole-site AI audit | YesScan the whole site or only chosen URLs | Yes10 to 200 audits per month by planSource | YesDeep audits flag access controls and JavaScript rendering issuesSource | RelatedGEO audit alongside a content auditSource | RelatedChecks llms.txt, content length, last-modified headers, robots.txtSource |
| Pointers to what to fix | YesPoints at the passages that are hard to quote | RelatedActionable recommendations (beta)Source | RelatedStep-by-step recommendations tied to page intent, personas, promptsSource | YesReview comes with fixesSource | Not listed |
Where each of them shines
Page audits with an AI readiness score and 90+ checks.
Scrunch checks whether AI agents can reach and read your content, including pages rendered with JavaScript. Compare in full
A GEO audit of structured data and AI readiness with fixes. Compare in full
An AI Search Health widget in Site Audit, including llms.txt checks. Compare in full
Questions about passage extractability score
What is passage extractability?
It is how easily an AI engine can lift one passage from your page and use it as an answer.
Why does it matter for ChatGPT and Perplexity?
Engines read pages in chunks and quote passages that answer the question on their own. Hard-to-quote passages are skipped even when the page is relevant.
Can I scan only some pages?
Yes. Narrow the scan to the URLs you choose, or scan the whole site.
Does it work for product pages?
Yes. Product pages in your shopping feed can be scanned the same way.
What makes a passage hard to quote?
Common causes are relying on earlier text, burying the answer, or putting the answer in an image.
How is this different from a full site audit?
Site audits such as Rankscale's or Scrunch's check many technical signals. The passage score looks closely at whether each passage can be quoted as an answer.
Keep exploring
Try it on your own brand.
Proofsource is live: scan your brand and see passage extractability score at work with your own answers, competitors and sources.
Google AI OverviewsGoogle AI Mode