Addition by Subtraction by Addition (ASA)
ASA refers to the skill of adding to, or subtracting from a URL to gain access to things that are not normally accessible by the normal URL. ASA is all about patterns, what patters are used in the URL, and what do these patterns tell us, and what can be substituted to find something not normally found. ASA is basically reverse peeling. As we learned in an earlier blog, peeling is taking away from a URL to uncover information. ASA is not just taking away, but adding to a URL, substituting in a URL to uncover new things. For the purposes of an explanation I am going to use a sports site called CBS Sportsline. Within CBS Sportsline you can access a lot of information. Specifically you can see players stats during a particular season. Who was the league leaders during a particular regular season. However not every season is available. But if you look at the URL of the most resent season they have available, you will notice a pattern. The URL has within it 4 characters of the URL that represent the year of that season. . So if you are looking at stats for the 2009 season, and want the stats of the 2005 season, all you should need to do is change 4 characters to show 2005 and hit enter and there you go the 2005 stats. (see below example)
The hyperlink above shows the regular season stats for 2009, now the site does not show the regular season stats for 2005, but a simple change to the URL, changing the year from 2009 to 2005 (see below), and presto you have the stats for 2005.
Now you will notice the hyperlink says at the end regular. This means regular season. Guess what would happen if you changed the word regular to post for postseason (playoffs) or to pre for preseason. You are right you will get the post season or pre season stats
This same premise can work for us as Sourcers. If you are looking at a site, examine the URL, see what happens if you add things like; resume, bio, CV etc., or when you take part of it off, and add things like; resume, bio, CV etc.. You might be surprised at what you find. I did this once and it was pretty amazing what I found. I was looking at a particular company’s website (company name with