Guides for the way session replay actually works.

GDPR-compliant session replay needs on-device PII masking, a documented lawful basis, a signed DPA, sub-processor disclosure, and a DPIA. The exact requirements, plus a checklist.

Turn real user sessions into runnable Playwright tests. How click events become selectors, observed state becomes assertions, and a captured session becomes a .spec.ts file you commit.

Seven Hotjar alternatives ranked on session replay, heatmaps, AI workflows, privacy, integrations, and price. Includes a feature-by-feature comparison table.

On-device PII masking is the only GDPR-compliant pattern for session replay. How regex, Luhn, attribute selectors, and on-device ML combine to redact personal data before it leaves the browser.

Add session replay to a React app in five minutes. SDK init pattern, error-boundary handling, route-change capture, PII masking selectors, and verification — copy-paste code included.

Four open-source session replay options compared on capture quality, ops burden, AI features, and total cost of ownership. When OSS makes sense — and when hosted wins.

Should you record every session, sample 10%, or only sessions with errors? Compare sampling strategies on cost, statistical validity, debug coverage, and privacy.

Error monitoring tells you a stack trace fired. Session replay shows you the session it fired in. Where each fits, how they overlap, and why most engineering teams need both.

A plain-English explanation of session replay — what it is, how it works, how it differs from screen recording, and how to pick the right tool. Updated 2026.

Step-by-step technical explainer of DOM-based session replay — initial snapshot, MutationObserver, network + console capture, reconstruction, why it beats video.

The eight leading session replay platforms ranked on capture quality, AI, privacy, integrations, and price. Includes a feature-by-feature scoring table.

A five-step guide to recording user sessions — install the SDK, configure masking, deploy, verify, watch the first session. Code samples + privacy checklist.

The business case for session replay — how watching real users cuts bug-fix time by 60%, reduces silent-failure churn, and turns tickets into shippable patches.

Session replay reconstructs the DOM; screen recording captures pixels. Compare fidelity, file size, searchability, dev-tools access, privacy, and cost — with a side-by-side table.