Glossary of AI and Search Exposure Signals
Every term here is something the inspection actually reads on a page, defined in plain language with the part a short definition leaves out. If a finding in your result used a word you did not recognize, it is defined here.
A
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AI Crawler
An automated client operated by an AI company that fetches pages for training data or live answer retrieval.
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Anchor Text
The visible words inside a link, which describe the destination to anything that cannot see the page.
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Answer-First Paragraph
A self-contained answer placed in the first paragraph after the H1, before any explanation or setup.
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App Shell
A near-empty HTML document containing a single mount element that script later fills with the real content.
B
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Boilerplate Ratio
How much of a page response is actual readable text compared with markup, script, and embedded data.
C
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Canonical URL
A declaration naming which URL is the real address of a page, so duplicate variants do not compete with each other.
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Client-Side Rendering
Building page content in the browser with JavaScript after the server has already sent its response.
D
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Discovery Signal
Anything observable that affects whether a machine can reach a page at all, before any question of quality comes up.
E
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Entity Consistency
Using one name, one spelling, and one identity for a publisher across every signal a page emits.
F
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FAQPage Markup
Structured data that pairs a question with its answer explicitly, rather than leaving the pairing implied by layout.
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Freshness Signal
A visible or declared date telling a reader and a machine when a page was published or last revised.
H
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H1
The single top-level heading that states what a page is about.
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Heading Hierarchy
Heading levels used in descending order so the page has a readable structure rather than just styled text.
I
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Inspection Score
A 0 to 100 weighted result showing how much of the observable signal set a page actually carries.
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Internal Link
A link from one page of a site to another, present in the HTML response rather than added by script.
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Investigate Finding
A signal that looks wrong from outside but has a legitimate explanation an external inspection cannot rule out.
L
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llms.txt
A plain text file at the site root describing what a site covers and which pages matter most, written for AI clients.
N
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noindex
A directive, in a meta tag or an HTTP header, telling search systems to keep this page out of their index.
O
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Open Graph
A small set of meta tags stating a page title, description, image, and URL in a second, redundant form.
P
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Publisher Entity
A declared Organization or Person in structured data identifying who stands behind the content.
Q
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Quick Fix
A finding that can be repaired at the page, template, or configuration level without changing how the site is built.
R
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Redirect Chain
A sequence of two or more redirects between the URL requested and the page that finally answers.
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robots.txt
A plain text file at the site root telling crawlers which parts of the site they may request.
S
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sameAs
A structured data property linking a declared entity to its verified profiles elsewhere on the web.
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Semantic Landmark
An HTML element that marks where the primary content of a page begins and ends.
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Stable Identifier
A durable URI given to a node in structured data so other nodes can reference it instead of repeating it.
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Structural Issue
A finding whose cause sits above the page, in the architecture, rendering model, or hosting, and cannot be fixed by editing content.
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Structured Data
Machine-readable statements embedded in a page describing what it is and who published it.
X
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XML Sitemap
A machine-readable list of the URLs on a site that its owner wants crawled.