the arroba in spanish or at in english es the more important sign in the web address

the punto or point is important for al text an is used in web address

the underscore is important for all direccions in the web

 

the forward slash is important in all direccions electronics

the backslash is not diferent to forwardslash is very important for te world web

links

http://www.estacioninglesa.es/blog/guias-ingles/como-se-dice-arroba-en-ingles/