posted in Technology

€2.99 or €3.49? Proton VPN's Pricing Test Exposed

cross-posted from: lemmy.world/post/50434194

Proton VPN’s pricing page exposed an ab-test identifier linked to two VPN Plus prices: €2.99/month (70% off) and €3.49/month (65% off). Repeated testing produced B → A → B → A → B, with the variant matching the rendered price each time. €12 difference over 24 months.

thecybersecguru.com/news/proton-vpn-ab-testing-price-difference/
Proton VPN AB testingThe CyberSec GuruProton VPN Is Showing Different Prices: Inside Its €2.99 vs €3.49 A/B Test | The CyberSec GuruAn investigation into Proton VPN's pricing page found an A/B-test tag linked to two VPN Plus prices: €2.99 and €3.49 per month

Replying to @⁨UnLocoPoco@lemmy.world⁩

Way back when, the observed ABAB sequence could be explained by one server using outdated data and another having the new data and visitors being round-robined to each in turn. I have investigated issues like this and this has happened. Not sure how many companies still use a setup like this, though. It’s been K8s clusters everywhere I’ve worked for many years now. This does indeed look like a proper AB test, the HTML already looks pretty clear.

en

Replying to @⁨mabeledo@lemmy.world⁩

oh they came back in February. they were inactive before that for a year, shortly after the republican drama

mastodon.social/@protonprivacy

MastodonProton (@protonprivacy@mastodon.social)1.44K Posts, 13 Following, 54.8K Followers · Official Proton account, creator of Proton Mail, Proton Drive, Proton Pass, Proton VPN, Proton Wallet, Proton Meet, and Lumo. Support queries are handled by our Customer Service Team: https://proton.me/support