Getting a 403 HTTP Code - What's Causing This Forbidden Error? or Why Am I Seeing a 403 HTTP Code and

Had this with a client’s site—turned out the hosting provider auto-blocked "suspicious" user agents.

Fix? Spoof your UA (User-Agent Switcher extension helps) or whitelist legit traffic in cPanel.

For non-techies: just try a different device/network. If it works, blame your ISP.