如何将非德国来源的所有流量重定向至英文网站？

Absolutely, this is totally achievable—you don’t need to target individual countries one by one; instead, you can invert the logic: let German traffic stay on your German site, and redirect everyone else to your English site. Here are the most reliable methods based on common server setups:

Apache (via .htaccess) #

If you’re using an Apache server, you can leverage the mod_geoip module (or the newer mod_maxminddb for better accuracy) in your .htaccess file. Here’s how to set it up:

First, confirm the module is enabled on your server. Then add this snippet to your .htaccess:

# Redirect non-German IPs to English site
GeoIPEnable On
GeoIPDBFile /path/to/GeoIP.dat

RewriteEngine On
RewriteCond %{ENV:GEOIP_COUNTRY_CODE} !^DE$
RewriteRule ^(.*)$ https://your-english-site.com/$1 [R=302,L]

• Pro tip: Use R=301 only if this redirect is permanent; stick with 302 if you might adjust it later, to avoid stubborn browser caching issues.
• Replace /path/to/GeoIP.dat with the actual path to your GeoIP database file (most web hosts provide this by default, or you can download it from MaxMind).

Nginx Configuration #

For Nginx, you’ll use the ngx_http_geoip_module (or ngx_http_geoip2_module for updated, more precise data). Add this to your site’s server block:

geoip_country /path/to/GeoIP.dat;

server {
    listen 80;
    server_name your-german-site.de;

    if ($geoip_country_code != DE) {
        return 302 https://your-english-site.com$request_uri;
    }

    # Rest of your German site configuration...
}

Update the database path and site URLs to match your setup. Nginx’s if directive is safe here since we’re only handling a straightforward redirect.

Server-Side Scripting (e.g., PHP) #

If you don’t have access to server configs, you can handle this directly in your site’s code. For PHP, use the MaxMind GeoIP2 library (install via Composer) or rely on server variables if your host provides them:

<?php
// Using MaxMind GeoIP2 library
require_once 'vendor/autoload.php';
use MaxMind\Db\Reader;

$reader = new Reader('/path/to/GeoIP2-Country.mmdb');
$record = $reader->city($_SERVER['REMOTE_ADDR']);
$countryCode = $record->country->isoCode;

if ($countryCode !== 'DE') {
    header("Location: https://your-english-site.com" . $_SERVER['REQUEST_URI'], true, 302);
    exit;
}
$reader->close();
?>

Place this at the top of your main index file so it runs before any other content loads.

Key Things to Keep in Mind #

• IP Database Accuracy: Free GeoIP databases work for most cases, but paid options (like MaxMind’s GeoIP2 Precision) are more reliable, especially for mobile or proxy traffic.
• Caching: Cache the country code for returning visitors to avoid repeated database lookups—this boosts your site’s performance.
• SEO Considerations: Pair the redirect with hreflang tags on both sites to inform search engines about your language/country targeting, which helps avoid duplicate content penalties.
• Testing: Use VPNs or proxy services to test from non-German locations, and verify that German IPs stay on your German site as expected.

内容的提问来源于stack exchange，提问作者Sasha Raysky