Is it safe to use an @
symbol as part of a user? For example, a possible URL would be http://example.com/@dave
.
The idea is that, nowadays, users are commonly called "@user", so why not make the user page "@username"?
These characters are "{", "}", "|", "\", "^", "~", "[", "]", and "`". All unsafe characters must always be encoded within 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.
You can use the @
character in HTTP URI paths if you percent-encode it as %40
.
Many browsers would display it still as @
, but e.g. when you copy-and-paste the URI into a text document, it will be %40
.
Instead of percent-encoding it, you may use @
directly in the HTTP URI path.
See the syntax for the path of an URI. Various unrelated clauses aside, the path may consist of characters in the segment
, segment-nz
, or segment-nz-nc
set. segment
and segment-nz
consist of characters from the pchar
set, which is defined as:
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
As you can see, the @
is listed explicitly.
The segment-nz-nc
set also lists the @
character explicitly:
segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
So, a HTTP URI like this is totally valid:
http://example.com/@dave
Here is an example Wikipedia page:
http://en.wikipedia.org/wiki/%22@%22_%28album%29
As you can see, the "
, (
, and )
characters are percent-encoded, but the @
and the _
is used directly.
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