W3C Standards

Browser Reports Your Server Never Sees

The W3C Reporting API captures client-side errors, security violations, and performance issues that traditional server monitoring misses entirely.

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Why Monitor Browser Reports?

Your Users' Browsers Know What Your Servers Don't

When a browser blocks a script, fails to connect, or encounters a deprecated API, the only trace is a message in the developer console — invisible to your monitoring stack.

The W3C Reporting API changes this. Browsers automatically send structured reports about security violations, network failures, and performance issues directly to your endpoint. Reporting API App captures these reports and routes them to the tools you already use.

Security

Detect attacks and policy violations before they impact users.

CSP Violations

Detect XSS attacks and script injection attempts before they impact users.

Integrity (SRI)

Detect supply chain attacks when scripts fail hash verification.

Permissions Policy

Create audit trails when scripts attempt to access restricted browser features.

Reliability

Surface network failures and stability issues invisible to server logs.

Network Errors

Surface DNS, TCP, and TLS failures your server logs never see.

Deprecations

Get advance warning when APIs you depend on are scheduled for removal.

Crash Reports

Detect tab crashes and out-of-memory errors that destroy JavaScript state.

Performance

Catch deprecations and browser interventions that degrade user experience.

Interventions

Know when browsers block heavy ads, auto-playing media, or resource-intensive content.

Cross-Origin Isolation

Deploy COOP/COEP safely without breaking OAuth or payment integrations.

Document Policy

Enforce performance budgets for image sizes, sync scripts, and resource policies.

Ready to See What Your Users' Browsers Are Reporting?

Start capturing browser reports today. Setup takes less than 5 minutes.

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