Rules
Canonical Header Validation
Detects mismatch between HTML canonical tag and Link header
Canonical URL
Validates canonical URL presence and format
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