[togilvie]

It's an ad tracker. It's loading in ads that people see, but isn't the source website generating the traffic.

[cosmojg]

Ah, that makes sense. I take it that its name is a play on "DoubleClick"?

[mgerdts]

I've notice some non-native English speakers use "double verify" where native speakers would use "double check" or "verify". It could be a play on that.

Or they had a meeting where the founders asked "what domain sounds twice as good as verify.com?"

[hazza_n_dazza]

thats a superplusgood question