This can be due to a number of reasons, including:
A failed password on an email account.
Failed attempts accessing a secure part of your website, such as the administrator page.
Malicious activity on your device.
Attempting to upload infected files to your site.
On this occasion, the server logs show the below reason for the IP block:
18.104.22.168 (mod_security) mod_security (id:5000135) triggered by 22.214.171.124 (US/United States/ec2-34-226-244-254.compute-1.amazonaws.com): 5 in the last 3600 secs
Contact your Hosting Provider if you need assistance interpreting the above log.
Yes, your site is still accessible to visitors from other locations.
It is the ISP issued IP address that is listed, which is unique to your internet connection/router. As a result, it is just your present location that is blocked.
The blocked IP address is:
In most cases, you can use the Quick Unblock option below to regain access.
However, please be aware - your IP address may be blocked again, unless you resolve the issue which caused the block.
The Quick Unblock feature will instantly clear most Firewall blocks.
However in some cases Quick Unblock requests will not be successful, as it is dependent on why your IP address was originally listed in the firewall. If the unblock fails you will need to contact Hosting Support.