What is Identity Resolution?
The process of matching and merging data about the same person or company across different systems, devices, and sessions to create a unified profile.
Understanding the Details
Identity resolution tackles a fundamental challenge: the same person appears as different records in different systems. They're an anonymous visitor in web analytics, an email subscriber in your marketing platform, a contact in your CRM, and a user in your product — but they're one person. Identity resolution connects these records using identifiers like email addresses, device fingerprints, login events, and probabilistic matching. This unified view enables personalisation (knowing a visitor has already trialled your product), attribution (connecting anonymous sessions to known contacts), and accurate analytics (understanding the complete customer journey). Privacy regulations add complexity, requiring consent-based approaches to identity matching.
How It Works in Practice
Known visitor recognition
When an email subscriber visits the website and is identified via cookie, their browsing behaviour enriches their CRM profile for personalised follow-up.
Cross-device tracking
A prospect researches on mobile, signs up on desktop, and uses the product on a tablet — identity resolution connects all three as one user journey.
Account-level analytics
Multiple contacts from the same company are resolved to a single account, enabling account-level engagement scoring and ABM measurement.
Why It Matters
Fragmented identity data means fragmented customer understanding. Identity resolution enables the personalisation, attribution, and analytics that modern marketing depends on.
What People Often Get Wrong
Identity resolution requires third-party cookies. Actually, first-party identity strategies using login events and email matching are more reliable and privacy-compliant.
All visitors can be identified. Actually, a significant portion of web visitors remain anonymous, and that's acceptable.
Identity resolution is a privacy risk. Actually, done properly with consent and first-party data, it respects privacy while improving customer experience.
How We Handle Identity Resolution
We implement identity resolution using first-party data strategies and CDPs, creating unified customer views while maintaining privacy compliance.
Related Terms
Common Questions
Need Help With Identity Resolution?
If you'd like to discuss how identity resolution applies to your business, we're happy to explain further.