如何将HTTPS非WWW域名重定向至HTTPS WWW域名？

Hey Rachel, totally get needing to redirect your root domain to the www version—this is such a common task, and I’ve got you covered with the most reliable methods depending on your server setup. Let’s dive in:

If your site runs on Apache, this is the go-to method. Head to your website’s root directory, create or edit the .htaccess file, and add this code:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^example\.com [NC]
RewriteRule ^(.*)$ https://www.example.com/$1 [L,R=301]

• R=301 sets a permanent redirect, which is best for SEO since it tells search engines to update their indexes to the www version.
• NC makes the rule case-insensitive (so it works for Example.com too).
• L tells Apache this is the last rule to process once matched.

For Nginx, locate your site’s configuration file (usually in /etc/nginx/sites-available/ or /etc/nginx/conf.d/). Update or add these server blocks:

# Redirect root domain to www
server {
    listen 80;
    listen [::]:80;
    server_name example.com;
    return 301 https://www.example.com$request_uri;
}

# Your main www site configuration (make sure SSL is set up here)
server {
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name www.example.com;
    # Add your SSL certificate paths, root directory, and other site config here
}

After making changes, restart Nginx to apply them:

sudo systemctl restart nginx

If you can’t modify server config right now, add this to the <head> section of your original site’s HTML as a temporary workaround:

<meta http-equiv="refresh" content="0; URL=https://www.example.com">

⚠️ Note: This is less ideal for SEO than server-level redirects, so switch to one of the first two methods as soon as you can.

• Make sure www.example.com has a valid SSL certificate (no "not secure" warnings after redirect).
• Test the redirect by visiting https://example.com—you should land on the www version immediately.
• Use your browser’s DevTools (Network tab) to confirm the redirect status code is 301.

内容的提问来源于stack exchange，提问作者Rachel Willy