For the nerds that monitor their networks like I do if you are looking for a solution to block everything follow along... Did some HTML spelunking...
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Blocked header.tapatalk-cdn.com and
www.tapatalk.com to start off with which is what gave me the grey screen above the mobile view pictured above with no way to get out of it. Then found the real culprit:
groups.tapatalk-cdn.com. Went right into my DNS settings on my PiHole and told it to fuck right off..
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Bounced my DNS cache, verified with nslookup on Windows it was gone, tested on phone and it was gone, happy camper. No more tapatalk bullshit anywhere on my network. Use this method just in case one day they change how the theme is loaded in tapatalk based websites.