The 'http_request_reject_unsafe_urls' PHP filter in WordPress is a powerful tool for enhancing website security.

Optimizing HTTP Requests with WordPress 'http_request_redirection_count' PHP Filter

​The `http_request_host_is_external` WordPress filter allows developers to control whether external requests will be allowed in their site by modifying the value returned by this filter

The 'http_request_args' filter in WordPress allows developers to modify the arguments used in HTTP requests. This can be useful for customizing API requests or adding authentication headers.

The 'http_origin' PHP filter in WordPress can help prevent unauthorized access to your website.

​How to Use the WordPress `http_headers_useragent` PHP Filter to Modify the User Agent String Sent in an HTTP Request

The 'http_api_transports' PHP filter in WordPress allows developers to customize the HTTP transport used by the HTTP API.

​The `http_allowed_safe_ports` WordPress filter modifies the list of ports considered safe in the HTTP API, allowing users to control external requests

​The `home_url` WordPress filter modifies the home URL of a site by adding a custom function, changing the scheme, path, or redirection to another site