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Yes, the latter.

93% of the YC companies that we found using an A/B tester were using Optimizely. This, however, does not account for server-side testing as mentioned in the thread.


I thought this was interesting too. We usually see AdWords more highly adopted than FB, Twitter, etc.


Yep! Apologies for the misinformation here.


Hey, so i'll attempt to clear the air a bit. Didn't think this would trend like it did..

Cloudflare - chalk this up as a mistake. I have a marketing background, so not too well versed in the infrastructure space. I'll ask Macro to make an edit for me :)

"As opposed to...a custom made web app?" - correct.

Google Analytics vs Universal Analytics - Correct, Universal is an update, but many still use GA standard. The GA # (451) is all encompassing, the GUA # (314) is the subset of GA users that use the update.

Granted, there is much room for improvement in both the information given and the semantics behind it, but I'm glad you enjoyed it. Thought it would be interesting for people to see since a lot of this stuff usually operates behind the black curtain.


Thanks for the writeup! I enjoyed reading it and comparing with some of our vendor/stack choices.


Yeah, it's a good point. Added an explanation for axes above the graphs. Essentially, the x-axis represents the number of YC websites that tech was found on and the y-axis represents that tech's market share relative to the tech category.


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