This is a very concise service that is aimed at webmasters who wish to target their visitors in a simple and direct fashion. In general terms, we can define it as a script that enables webmasters to key in a series of variables, and if (and when) these are met a code that is set down beforehand is displayed.
The script lets the webmaster specify the browser the user is employing as well as the referring source and aspects like the screen resolution are fully taken into consideration. Of course, the language and the location of the user also weigh into the equation. The webmaster then creates both a text and an “otherwise” text to be displayed and be used to greet visitors.
In actuality, greeting visitors is just one of the many uses this can be put to. Other uses that spring easily to mind include don’t showing ads to certain users and even banning certain individuals from a website. The latter is a very convenient use, as spammer are known to take up all the available bandwith with their spam bots. This service can put an end to that.
Show If, then, is very easy to employ. That does not mean it will be widely consumed, as the actual number of webmasters is negligible when pitched against the actual number of people who surf the web. However, they will no doubt benefit from geo-targetting their websites and offering visitors an experience as suited as it can get.