This tool restricts access to a website, such as a support or documentation portal, by allowing only specific, pre-approved IP addresses to connect. It is designed for site owners who need to keep help resources private and secure, accessible only to authorized personnel or customers.

IP Address Restriction: The core function blocks all web traffic except from a defined list of allowed IP addresses. This ensures that only users from permitted networks can reach the site.

DNS Configuration Check: The tool provides clear error messages that guide website owners to verify their DNS settings if access issues arise, helping to resolve configuration problems.

Automated Access Control: It automatically enforces the restriction at the network edge, requiring no manual intervention for each access attempt, which reduces administrative overhead.

Error Handling for Visitors: Unauthorized visitors see a standardized error page explaining the restriction, which manages user expectations without revealing sensitive system details.