Top 1,000,000: SEO

How websites are built can affect their ranking in search results. This report tracks the adoption of several key Search Engine Optimization (SEO) techniques.

rel=canonical
hreflang
Legible Text
Descriptive Link Text

Lens

Start Date

End Date

rel=canonical

The percent of pages with a valid canonical link. Canonical pages are detected by Lighthouse.

hreflang

The percent of pages with a valid hreflang attribute, which allows crawlers to discover alternate translations of the page content. Validity is measured by Lighthouse.

Legible Text

The percent of pages with legible text. Legibility is measured by Lighthouse.

Descriptive Link Text

The percent of pages with descriptive link text. Descriptiveness is measured by Lighthouse.