src/Neutrino/Middleware/Throttle.php
protected function resolveRequestSignature()
    {
        /** @var \Phalcon\Http\Request $request */
        $request = $this->getDI()->getShared(Services::REQUEST);
        /** @var \Phalcon\Mvc\Router $router */
        $router = $this->getDI()->getShared(Services::ROUTER);

        return crc32(
            $router->getModuleName() .
            ':' . $router->getNamespaceName() .
            ':' . $router->getControllerName() .
            ':' . $router->getActionName() .
            '|' . $request->getHttpHost() .
            '|' . $request->getURI() .
            '|' . $request->getClientAddress()
        );
    }
protected function resolveRequestSignature()
    {
        /** @var \Phalcon\Http\Request $request */
        $request = $this->getDI()->getShared(Services::REQUEST);
        /** @var \Phalcon\Mvc\Router $router */
        $router = $this->getDI()->getShared(Services::ROUTER);

        return crc32(
            $router->getModuleName() .
            ':' . $router->getNamespaceName() .
            ':' . $router->getControllerName() .
            ':' . $router->getActionName() .
            '|' . $request->getHttpHost() .
            '|' . $request->getURI() .
            '|' . $request->getClientAddress()
        );
    }
Resolve the request signature based on :
Module : Namespace : Controller : Action | HOST | URI | ClientIP

@return string