Skip to main content
Essential meta tags and page structure for search engines

Rules

Canonical Header Validation

Detects mismatch between HTML canonical tag and Link header

Canonical URL

Validates canonical URL presence and format

Charset

Checks for proper character encoding declaration

Doctype

Checks for valid HTML5 doctype declaration

Favicon

Checks for favicon presence

H1 Tag

Validates H1 tag presence and uniqueness

Meta Description

Validates meta description presence and length

Meta Title

Validates page title presence and length

Nosnippet Directive

Detects pages preventing search engine snippets

Open Graph Tags

Validates Open Graph meta tags for social sharing

Robots Meta

Checks robots meta tag for indexing directives

Title Uniqueness

Checks that page titles are unique across the site

Twitter Cards

Validates Twitter Card meta tags

Disable All Core SEO Rules

squirrel.toml
[rules]
disable = ["core/*"]