[reacharavindh]

I’d guess adblocker cuts off Google Analytics. I know mine does.

[ashtonkem]

Having close to 4 out of 5 visitors to an engineering blog running an ad blocker seems about right to me.

[rchaud]

If it's an engineering blog, the vistors might not even have JS enabled.

[tonyedgecombe]

This is one of the reasons I abandoned Adwords. I sell to a technical audience and as far as I could tell most of my customers run an adblocker.

[cyberge99]

What do you use in it’s stead?

[easrng]

Not the person you replied to but try https://ethicalads.io from Read The Docs. It's very non-intrusive and I suspect most people will whitelist it if you ask. (I whitelist it anyway)