Just as the name says. It verifies if a domain is blocked by Quad9 DNS Services.
const isBlocked = require('is-domain-blocked-by-quad9');
(async() => {
const domainInfo = await isBlocked("example.com")
return domainInfo.blocked
})
To verify if a domain is blocked by Quad9.
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npm install is-domain-blocked-by-quad9@1.0.1