Can you use & in a URL?
So it is not advisable to use it in an URL unless you want to use it for parameters.
There are other characters which must be escaped when used out of context in an URL.
See here for a list.
Can you use an ampersand in a URL?
No. Unfortunately you can’t use ampersands (&) as part of your domain name. Characters that you can use in your domain name include letters, numbers and hyphens.
What can be in a URL?
URLs. A URL (Uniform Resource Locator), more commonly known as a “web address”, specifies the location of a resource (such as a web page) on the internet. The URL also specifies how to retrieve that resource, also known as the “protocol”, such as HTTP, HTTPS, FTP, etc.
Is valid in URL?
A URL is a valid URL if at least one of the following conditions holds: The URL is a valid URI reference [RFC3986]. The URL is a valid IRI reference and it has no query component. The URL is a valid IRI reference and the character encoding of the URL’s Document is UTF-8 or UTF-16.