there is a tracking pixel ("/wpde-page-imp") to measure wikipedia.de visits. see: https://github.com/wmde/fundraising/issues/1149
it seems data is not tracked anymore by piwik since 10th july. could you pleas please have a look?
PR is on GitHub: https://github.com/wmde/Wikipedia.de/pull/24. Although already reviewed, it has been sitting there for quite a while and needs a rebase before merging.
- Banners impressions on wikipedia.de are tracked with a chance of 1%.