Where CRO practitioners share real test results — not just best practices.
CRO subreddits attract the unusual combination of data-driven thinking and creative intuition that good conversion optimisation requires. Practitioners share actual A/B test results (both wins and losses), page teardowns, and the statistical methodology discussions that separate real CRO from button-colour experiments.
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Dedicated CRO community covering A/B testing, landing pages, user research, funnel analysis, and experimentation culture. Practitioners share real test results and discuss methodology.
Best content types
Posting tip
Post actual test results with statistical significance, sample size, and what you expected vs what happened. The surprises drive the best discussions.
Analytics professionals discuss data collection, interpretation, and conversion analysis. Strong overlap with CRO in GA4, funnel analysis, and attribution discussions.
Best content types
Posting tip
Technical implementation questions with screenshots of what you are seeing get the most useful responses.
Landing pages are a core topic here. PPC practitioners are obsessed with post-click conversion, making this community an excellent source of landing page optimisation discussions.
Best content types
Posting tip
Combine PPC metrics with landing page data — CTR, conversion rate, CPC, and ROAS in a single post tells the full story.
Business owners discuss conversion optimisation in the context of business growth. Less technical than specialist CRO communities but useful for connecting CRO to revenue outcomes.
Best content types
Posting tip
Frame CRO in revenue terms — "This A/B test added $20k/month in revenue" drives much more engagement than technical methodology posts.
Design-led conversion improvements, UX heuristics, and usability testing methods relevant to CRO. Covers the design side of what makes pages convert.
Best content types
Posting tip
Before-and-after design comparisons with conversion data attached are the highest-performing posts in this community.
CRO communities are statistical in nature — generic best practices will be challenged unless you have data. Always lead with your hypothesis, test structure, and results. The community is excellent for methodological discussions: when is a test significant, how do you handle multiple testing problems, how do you prioritise the testing roadmap. The best contributors share their failures as generously as their wins.
r/CRO (70k+ members) is the most focused community, but strong complementary discussions appear in r/analytics (for data methodology), r/PPC (for landing page optimisation), and r/UXDesign (for design-driven conversion improvement). Experienced CRO practitioners typically monitor all of these.
r/CRO regularly features A/B test case studies with results. The community values statistical rigour — sharing confidence intervals and sample sizes is expected. r/PPC also has A/B testing discussions focused specifically on ad and landing page experiments.
r/ecommerce covers conversion optimisation specific to online retail, including checkout optimisation, product page tests, and cart abandonment strategies. r/Shopify is the best community for Shopify-specific CRO discussions, with threads on conversion apps, checkout customisation, and theme optimisation.
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