If a site is infinitely redirecting -- looping -- please check one of the following:
- CloudFlare
- In CloudFlare -> the redirecting domain, go to "SSL / TLS"
- Ensure that the SSL / TLS mode is set to "Full Strict"
- If it not set to Full (strict), change it to that setting and test if the site continues to redirect
- Wordpress
- Redirection plugin may have a bad redirect rule
- Other SEO plugin
- On some servers, if a .htaccess file is present and has rewrites, a rewrite may conflict
- Site url is not