Geolocation: Hello World
Get all geolocation data fields and display them in HTML.
export default {  async fetch(request) {    let html_content = "";    let html_style =      "body{padding:6em; font-family: sans-serif;} h1{color:#f6821f;}";
    html_content += "<p> Colo: " + request.cf.colo + "</p>";    html_content += "<p> Country: " + request.cf.country + "</p>";    html_content += "<p> City: " + request.cf.city + "</p>";    html_content += "<p> Continent: " + request.cf.continent + "</p>";    html_content += "<p> Latitude: " + request.cf.latitude + "</p>";    html_content += "<p> Longitude: " + request.cf.longitude + "</p>";    html_content += "<p> PostalCode: " + request.cf.postalCode + "</p>";    html_content += "<p> MetroCode: " + request.cf.metroCode + "</p>";    html_content += "<p> Region: " + request.cf.region + "</p>";    html_content += "<p> RegionCode: " + request.cf.regionCode + "</p>";    html_content += "<p> Timezone: " + request.cf.timezone + "</p>";
    let html = `<!DOCTYPE html>      <head>        <title> Geolocation: Hello World </title>        <style> ${html_style} </style>      </head>      <body>        <h1>Geolocation: Hello World!</h1>        <p>You now have access to geolocation data about where your user is visiting from.</p>        ${html_content}      </body>`;
    return new Response(html, {      headers: {        "content-type": "text/html;charset=UTF-8",      },    });  },};export default {  async fetch(request): Promise<Response> {    let html_content = "";    let html_style =      "body{padding:6em; font-family: sans-serif;} h1{color:#f6821f;}";
    html_content += "<p> Colo: " + request.cf.colo + "</p>";    html_content += "<p> Country: " + request.cf.country + "</p>";    html_content += "<p> City: " + request.cf.city + "</p>";    html_content += "<p> Continent: " + request.cf.continent + "</p>";    html_content += "<p> Latitude: " + request.cf.latitude + "</p>";    html_content += "<p> Longitude: " + request.cf.longitude + "</p>";    html_content += "<p> PostalCode: " + request.cf.postalCode + "</p>";    html_content += "<p> MetroCode: " + request.cf.metroCode + "</p>";    html_content += "<p> Region: " + request.cf.region + "</p>";    html_content += "<p> RegionCode: " + request.cf.regionCode + "</p>";    html_content += "<p> Timezone: " + request.cf.timezone + "</p>";
    let html = `<!DOCTYPE html>      <head>        <title> Geolocation: Hello World </title>        <style> ${html_style} </style>      </head>      <body>        <h1>Geolocation: Hello World!</h1>        <p>You now have access to geolocation data about where your user is visiting from.</p>        ${html_content}      </body>`;
    return new Response(html, {      headers: {        "content-type": "text/html;charset=UTF-8",      },    });  },} satisfies ExportedHandler;from workers import Response
async def on_fetch(request):    html_content = ""    html_style = "body{padding:6em font-family: sans-serif;} h1{color:#f6821f;}"
    html_content += "<p> Colo: " + request.cf.colo + "</p>"    html_content += "<p> Country: " + request.cf.country + "</p>"    html_content += "<p> City: " + request.cf.city + "</p>"    html_content += "<p> Continent: " + request.cf.continent + "</p>"    html_content += "<p> Latitude: " + request.cf.latitude + "</p>"    html_content += "<p> Longitude: " + request.cf.longitude + "</p>"    html_content += "<p> PostalCode: " + request.cf.postalCode + "</p>"    html_content += "<p> Region: " + request.cf.region + "</p>"    html_content += "<p> RegionCode: " + request.cf.regionCode + "</p>"    html_content += "<p> Timezone: " + request.cf.timezone + "</p>"
    html = f"""    <!DOCTYPE html>      <head>        <title> Geolocation: Hello World </title>        <style> {html_style} </style>      </head>      <body>        <h1>Geolocation: Hello World!</h1>        <p>You now have access to geolocation data about where your user is visiting from.</p>        {html_content}      </body>    """
    headers = {"content-type": "text/html;charset=UTF-8"}    return Response(html, headers=headers)Was this helpful?
- Resources
- API
- New to Cloudflare?
- Products
- Sponsorships
- Open Source
- Support
- Help Center
- System Status
- Compliance
- GDPR
- Company
- cloudflare.com
- Our team
- Careers
- 2025 Cloudflare, Inc.
- Privacy Policy
- Terms of Use
- Report Security Issues
- Trademark