————— WORKING SITES (40) —————
https://www.google.com
https://www.youtube.com
https://www.facebook.com
https://www.x.com
https://www.amazon.com
https://www.wikipedia.org
https://stackoverflow.com
https://github.com
https://www.npmjs.com
https://pypi.org
https://www.python.org
https://www.microsoft.com
https://www.apple.com
https://www.adobe.com
https://www.netflix.com
https://www.spotify.com
https://wordpress.org
https://wordpress.com
https://www.w3schools.com
https://www.mozilla.org
https://www.cloudflare.com
https://www.digitalocean.com
https://www.heroku.com
https://www.netlify.com
https://vercel.com
https://aws.amazon.com
https://azure.microsoft.com
https://medium.com
https://www.quora.com
https://www.reddit.com
https://www.linkedin.com
https://www.instagram.com
https://www.pinterest.com
https://www.ebay.com
https://www.etsy.com
https://www.bbc.com
https://www.cnn.com
https://www.reuters.com
https://www.theguardian.com
https://www.forbes.com
https://www.nytimes.com
————— NONEXISTENT / VERY-UNLIKELY DOMAINS (20) —————
https://nonexistent-domain-123456789.com
https://this-should-be-dead-987654321.net
https://no-such-site-abcxyz.org
https://definitely-not-real-domain-001.com
https://broken-test-domain-0000.net
https://thispagedoesnotexist-xyz123.com
https://invalid-domain-check-555.org
https://not-a-real-site-777777.com
https://dead-domain-example-2025.net
https://temporary-nonexistent-987.org
https://fake-domain-check-314159.com
https://ghost-domain-test-271828.net
https://doesnotresolve-foobar.org
https://unregistered-domain-909090.com
https://nowaythisexists-111222.net
https://null-domain-example-abc123.org
https://missing-site-zz999.com
https://broken-host-test-444.net
https://nohost-should-fail-123.org
https://unresolvable-domain-test-2025.com
————— VALID HOSTS BUT (LIKELY) BROKEN PATHS / 404s (20) —————
https://example.com/nonexistentpage
https://github.com/this-page-does-not-exist-123456
https://wikipedia.org/wiki/ThisPageDoesNotExist_12345
https://google.com/404page
https://stackoverflow.com/questions/9999999999999999999
https://amazon.com/thispagedoesnotexist
https://bbc.com/nonexistentpage123
https://nytimes.com/this-article-does-not-exist-404
https://medium.com/@thisuser/this-article-does-not-exist-12345
https://reddit.com/r/thissubdoesnotexist12345
https://wordpress.org/plugins/nonexistent-plugin-xyz
https://wordpress.com/nonexistentpage-abc
https://cloudflare.com/thispagedoesnotexist-404
https://heroku.com/nonexistentapp-123456
https://netlify.com/nonexistent-site-404-test
https://vercel.com/this-page-does-not-exist-404
https://microsoft.com/nonexistentpage-404
https://apple.com/nonexistentpage-404
https://adobe.com/nonexistentpage-404
https://spotify.com/404notfound-page