@SteveJessop, you should give a website link to "Javascript hacks that allow for a very unrelated web page to check whether or not a supplied URL is within your historical past or not" You can not usually rely on privacy of the full URL possibly. For instance, as is typically https://ukpassportapplicationserv25666.thechapblog.com/36470309/uk-copyright-application-service-no-further-a-mystery