Here is fad's dna and this is how it works;
WEB2DNA will take you website, analyze it, crunch it to little bits and spit it out as a graphic representation of a human DNA. The brightness of the lines is determined by the importance of the tags in terms of structure. H1 is brighter than H2, which is brighter than H3. TABLE is brighter than TR, which is brighter than TD tags. Images and flash elements appear as 70% white. New HTML tags like STRONG and EM is brighter than older ones like B and I UL, OL and DL is brighter than their LI, DT, DD DIV layout is brighter than table layout Basically a semantically rich site will appear brighter than one with messy old-style code.
They also have a link to a site that creates graphs from your website DNA click here for more info and here for a web 2.0 dna flickr group
