FreeScan methodology
Website Audit Check Library
Explore all 38 checks across SEO / AEO / GEO, security, accessibility, and design. See what each check measures, what can trigger a false positive, and how to verify a fix without guesswork.
Run a free audit13 checks
SEO / AEO / GEO
Canonical Tag Check
How FreeScan verifies a page's preferred index URL and detects missing, conflicting, or invalid canonical tags.
Robots.txt Check
Understand robots.txt discovery, crawler directives, sitemap references, and accidental blocking risks.
XML Sitemap Check
How to keep XML sitemaps valid, canonical, segmented, and limited to pages that should be indexed.
Page Title Check
How FreeScan evaluates whether a page title is present, descriptive, and usable in search results.
Meta Description Check
Write and validate concise page summaries that can support clearer search-result snippets.
Structured Data Presence Check
Detect whether the page provides at least one JSON-LD structured-data block.
Internal Links Check
Build crawlable, descriptive links between related pages without creating noisy or circular navigation.
Open Graph Metadata Check
Create consistent titles, descriptions, canonical URLs, and preview images for shared links.
Crawler Access Check
Verify that the audited page and its controlling directives do not unintentionally block search and AI crawlers.
SEO Heading Structure Check
Check that the page has one primary H1 and a logical heading hierarchy that describes its content.
Optional llms.txt Check
Understand FreeScan's informational check for an optional llms.txt or .well-known/llms.txt resource.
Structured Data Validity Check
Verify that every detected JSON-LD block parses successfully and exposes readable schema types.
Indexability Signals Check
Detect noindex directives in rendered page metadata and public response headers.
6 checks
Security
Security Headers Check
Review the response headers that reduce clickjacking, content injection, data leakage, and unsafe transport behavior.
HTTPS Check
Confirm the audited page reaches a final URL over an encrypted HTTPS connection.
Mixed Content Check
Find insecure HTTP asset and link references inside an HTTPS page.
Insecure Form Actions Check
Detect forms that submit user-entered data to an insecure HTTP destination.
Sensitive File Exposure Check
Review FreeScan's small allowlist of safe public probes for files that should not be exposed.
Visible Cookie Flags Check
Explain the limited public evidence FreeScan can collect when a page sets cookies.
8 checks
Accessibility
Heading Order Check
Use headings to describe document structure without skipping levels solely for visual styling.
Image Alt Text Check
Decide when an image needs concise alternative text and when an empty alt attribute is correct.
Form Labels Check
Verify that every rendered form control has a programmatically determinable label or accessible name.
Landmark Presence Check
Check for semantic page regions that help assistive-technology users navigate quickly.
Semantic Buttons and Links Check
Ensure interactive controls use native buttons and links with the correct behavior and accessible semantics.
HTML Language Check
Verify that the document declares its primary human language on the root HTML element.
Color Contrast Check
Measure rendered foreground and background color pairs against applicable WCAG contrast targets.
Rendered axe Violations Check
Review accessibility rules detected by axe against the browser-rendered page and affected elements.
11 checks
Design
Visible Primary CTA Check
Check whether the page presents at least one recognizable primary call to action.
Hero Clarity Signals Check
Evaluate whether the page opens with one clear primary heading and a meaningful supporting summary.
Text Density Check
Compare approximate visible word count with the expected range for a general page or long-form article.
Trust Signals Check
Detect visible language commonly associated with proof, policies, support, guarantees, and customer confidence.
Responsive Viewport Check
Verify that the page declares viewport behavior required for usable mobile rendering.
Readability Signals Check
Use average sentence length as a deterministic signal for copy that may be difficult to scan.
Spacing Consistency Check
Look for repeated spacing tokens or style signals that suggest a systematic layout rhythm.
Visual Hierarchy Check
Detect headings, calls to action, and emphasized text that establish a perceivable order of importance.
Rendered Speed Signals Check
Review browser-observed loading milestones, resource volume, scripts, third parties, and transferred data.
Runtime Console Health Check
Detect site-authored console errors and uncaught page errors during the rendered audit.
Rendered Layout Ergonomics Check
Measure horizontal overflow and undersized tap targets in the browser-rendered page.
