Headerharbor: Web Headers

About Headerharbor: Web Headers

Headerharbor is a local response-header workbench for developers, auditors, and support teams troubleshooting browser security policy.

Turn local Raw HTTP headers evidence into a prioritized, editable review with explicit assumptions, ownership, and exportable decisions.

KEY FEATURES
- Native Raw HTTP headers import and normalization
- Interactive policy harbor
- Editable responses with owners and evidence
- Deterministic header findings scoring
- Current-versus-proposed state comparison
- Decision log with accountable disposition
- Portable header hardening packet export
- Private offline workspace with no account
- Native structured-file or CSV import
- Local PDF, workspace JSON, and domain-artifact export
- 48 original offline technical reference plates
- No account, ads, analytics, tracking, IAP, or subscription

Headerharbor reviews recorded headers and request context; browsers, caches, redirects, service workers, proxies, and origin rules may alter behavior. Confirm findings in supported browsers and on the final response path.