Some of WordPress themes don’t put a link to Admin Panel on the front page of the site, you should know how to go to admin area to manage your WordPress website/blog. By default Admin Panel/Admin Panel or dashboard URL is /wp-admin to the end of your domain. For example
domain.com/wp-admin
WordPress Admin Panel/Dashboard URL
If you put WordPress in a sub directory/folder, normally people put WordPress under /blog, in that case
domain.com/blog/wp-admin
If you are using sub domain or third level domain (may be vary depends on your sub domain, replace blog to yours)
blog.domain.com/wp-admin
Did you know in newer WordPress version, you can also use /admin and /login at the end of your domain to WordPress Admin Panel instead of hard to remember /wp-admin
WordPress login URL
When you use /wp-admin or /admin or /login WordPress will redirect your request to /wp-login.php which is the acutal login page. You can either use the original /wp-admin /admin /login or /wp-login.php to login to your WordPress Admin Panel
domain.com/wp-login.php
For sub directory/folder
blog.domain.com/wp-login.php