integrity

Install command: 
brew install --cask integrity

Name: Integrity

Tool to scan a website checking for broken links

https://peacockmedia.software/mac/integrity/

Cask JSON API: /api/cask/integrity.json

Cask code: integrity.rb on GitHub

Current version: 12.11.3

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
integrity 14
Installs (90 days)
integrity 34
Installs (365 days)
integrity 123