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What is Personal Data? Definition for Website Analytics and Privacy
Personal data is information that identifies a person or can reasonably be linked to a person. Under privacy laws such as GDPR, personal data can include obvious identifiers such as names and email addresses, but it can also include technical and behavioral data in the right context.
In website analytics, personal data matters because analytics systems often collect device, network, location, event, and usage information.
Personal data examples
Examples can include:
- Name
- Email address
- Phone number
- Account ID
- User ID
- IP address
- Precise location
- Device identifiers
- Cookie IDs
- Payment identifiers
- Behavioral profiles
Whether a data point is personal data can depend on context. A single anonymous page view may not identify someone, but combining it with account data, unique identifiers, or detailed behavior can change the privacy analysis.
Personal data in analytics
Analytics tools may process personal data when they store IP addresses, persistent identifiers, user-level profiles, precise geolocation, session recordings, or event data tied to accounts.
Privacy-friendly analytics reduces risk by collecting less, avoiding unnecessary identifiers, aggregating reports, limiting retention, and avoiding cross-site tracking.
Data minimization
Data minimization means collecting only what you need for a specific purpose. For many websites, useful analytics does not require third-party cookies, precise identity, or advertising profiles.
Swetrix is designed around privacy-first measurement. It helps teams understand traffic, conversions, performance, and errors while avoiding invasive data collection patterns.
Related terms: GDPR, CCPA, IP address, and data processing agreement.
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