Can anybody tell me....

the algorithm used by Sky and a few other internet service providers that deems my website to be pornography?

I checked the definition of pornography in the Oxford English Dictionary, which defines it thus:

pornography

pɔːˈnɒɡrəfi/

noun

noun: pornography

1. printed or visual material containing the explicit description or display of sexual organs or activity, intended to stimulate sexual excitement.

My website contains no pictures of sexual organs or sexual activity, nor does it have explicit descriptions of  these.

I did a bit of further research and found the etymology of the word to be from Greek:

Origin

mid 19th century: from Greek pornographos ‘writing about prostitutes’, from pornē ‘prostitute’ + graphein‘write’.

Hmm. I wonder is the program code may have been searching for the word 'prostitute' or 'prostitution'.  'Prostitution' does appear in my site - in the sentence that clearly states 'Domination is not prostitution'. 

Yet again a case of 'the computer says so, so it must be right' shame the computer system is designed and programmed by idiots who have no concept of context.......