Readability: ScanGov compared with other tools

Reading grade level against the plain language standard. How ScanGov, Siteimprove, Lighthouse, and other tools compare on readability checks.

Reading grade level against the plain language standard. This page shows only the readability rows for every tool we compare. The ScanGov readability page lists the standards behind ScanGov's column.

Capability comparison of ScanGov and 2 other tools, grouped by indicator
CapabilityScanGovSiteimproveLighthouse
Readability
Reading grade level per pageYes
Automated Readability Index and Flesch-Kincaid on every page. More
Not confirmed
Readability scoring is not described on the pages we checked.
No
Not audited.[1]
A reading level target for the siteYes
Set a reading level target per site. More
Not confirmed
Not described on the pages we checked.
No
Not audited.

Bracketed numbers link to the source and the date we checked it on each tool's page.

Other indicators

Accessibility

Checks that find barriers for people with disabilities.

Botability

Whether AI tools and search engines can find and read your site.

Security

Security headers and practices on every page.

Usability

Core Web Vitals, titles, descriptions, and mobile settings.

All indicators

The executive view and the full capability table for every tool we compare.

Plans Demo