...and I finally read that trying to visit a a site like www.google-analytics.com will NOT display the block page no matter what here : Custom Pi-Hole block page by DL6ER · Pull Request #961 · pi-hole/pi-hole · GitHub . So my journey to make this work is finished. Interestingly I donated to the project the first day I installed the pi-hole without trying it first because I thought it had an ingenious way of working. Now that I finally got it to work properly I'll donate again to keep it alive. Thanks guys