Customer retention rate is the percentage of existing customers who are still customers after a given period. It can help in better understanding what makes customers stay with your company. You can also identify opportunities to improve customer service. This metric is calculated by taking the number of customers you have at the end of the period and removing the number of new customers acquired during that period. Then divide that number by the number of customers you started with.
Customer retention rate
-

Five things every marketer should know about web analytics in 2026
Web analytics is changing fast. AI is moving from buzzword to actual business impact, privacy rules keep shifting on both sides of the Atlantic, and marketing teams are rethinking their tool stacks. What does this mean for analytics strategy in 2026? We asked industry experts to share their predictions.
-

First-party analytics without consent: Your Digital Omnibus compliance guide
The Digital Omnibus is the European Commission’s simplification initiative to modernize the EU’s digital rulebook and reduce consent fatigue. The framework would enable first-party analytics without consent when specific criteria are met, ending years of uncertainty about the use of legitimate interest for web statistics.
Other definitions
Recent posts from Piwik PRO blog
- Five things every marketer should know about web analytics in 2026
- First-party analytics without consent: Your Digital Omnibus compliance guide
- University website personalization: First-party data strategies for student recruitment and retention
- Digital marketing in the energy sector: Key challenges and fixes
- From Customer Data Platform to Data Activation: Why we’re evolving our approach
- Life after GA4: Why EU organizations are going local
- Telehealth analytics: Optimizing virtual care experiences in a HIPAA-compliant way
- The combined benefits of using Piwik PRO and Cookie Information Consent Management Platform