Hello,

Indeed in most cases, this is due to incorrect Site and Home URLs. I would suggest the following:

• Change your site and home URLs to your domain name. You can do that either directly via your database in the optioins table, or by adding the following to your wp-config.php file:

define('WP_HOME','https://your_domain.com');
define('WP_SITEURL','https://your_domain.com');

• Clear your website cache in case that you are using any caching plugins
• Check your Apache Vhost for any redirects
• Check your .htaccess file for any redirects as well
• Go through your plugins and make sure that there are no redirect plugins installed that could be causing the issue

Let me know how it goes!
Regards,
Bobby

Better to add in the Nginx config for faster redirect and security as taken from SlickStack (GitHub) below example

##################################
#### Server Block: Production ####
##################################

server {
    listen                 443 ssl http2;
    listen                 [::]:443 ssl http2;
    server_name            @SITE_DOMAIN;
    if ($http_host !~ "@SITE_DOMAIN") {
            return 301            $scheme://@SITE_DOMAIN$request_uri;
        }