The latest articles on DEV Community by IPintel.pw (@ipintel-pw). https://dev.to/ipintel-pw https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4157828%2Fdb3c4a7b-21d4-44e4-8813-acac550c3f70.jpeg https://dev.to/ipintel-pw en IPintel.pw Fri, 02 Oct 2026 15:13:01 +0000 https://dev.to/ipintel-pw/how-ip-geolocation-and-bot-detection-actually-work-and-how-to-build-it-for-free-3f76 https://dev.to/ipintel-pw/how-ip-geolocation-and-bot-detection-actually-work-and-how-to-build-it-for-free-3f76 <ol> <li>What your public IP reveals (location, ISP, ASN) and what it can't (exact address).</li> <li>How IP geolocation works (registry blocks → whois/geofeed → accuracy trade-offs).</li> <li>How bot detection works without CAPTCHAs (webdriver, headless GL, UA mismatch, datacenter IPs, DNS blacklists).</li> <li>How I built it on a single Cloudflare Worker using only free sources.</li> <li>Live demo: <a href="https://ipintel.pw" rel="noopener noreferrer">https://ipintel.pw</a> + the free API.</li> </ol> <p>"Try it free → <a href="https://ipintel.pw" rel="noopener noreferrer">https://ipintel.pw</a>"</p> ip api network vpn