Abstract: Arrangements for providing typosquatting detection and notification functions are provided. In some aspects, user input data may be received. The user input may include a website or website address received via a web browser address bar displayed on a user computing device. The user input may be analyzed, using a machine learning model, to determine a likelihood of typosquatting. The determined likelihood may be compared to a threshold and, if the likelihood is below the threshold, the user may proceed with the request to access the website. If the likelihood meets or exceeds the threshold, a notification or user interface may be generated requesting user input confirming that the user input reflects a correct or desired website. User response data may be received and used to update and/or validate the machine learning model.