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Constructor de Reglas CORS

Redes y Operaciones · Herramienta online gratuita

Generar cabeceras de respuesta CORS (Access-Control-*).

Equipo EZ4CodeÚltima actualización: 2026-09-25

Allow-Origin

Allow-Methods

Allow-Headers

Expose-Headers

Max-Age (seconds)

Allow-Credentials: true

Cabeceras generadas

Access-Control-Allow-Origin: https://example.com
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: Content-Type, Authorization
Access-Control-Max-Age: 86400

Todas las cabeceras CORS

Genera Allow-Origin, Methods, Headers, Expose, Credentials y Max-Age.

Listo para pre-flight

La salida funciona tanto para peticiones simples como respuestas pre-flight OPTIONS.

Exportar

Copia o descarga cabeceras para uso en configs de Nginx, Express o Apache.

Cómo usar Constructor de Reglas CORS

1Enter the URL, IP address, or network parameter to look up.
2Click the lookup or test button.
3Review the detailed results in the output panel.
4Use the information for your network operations.

Características

✓100% gratis — sin registro, sin suscripción, sin anuncios
✓Funciona íntegramente en tu navegador — los datos nunca salen de tu dispositivo
✓Rápida y ligera — resultados instantáneos
✓Multiplataforma — funciona en escritorio, tableta y móvil

Preguntas frecuentes

Are network lookups real-time?

Yes, IP lookups, DNS queries, and HTTP tests perform live network requests to provide current data.

Is my IP address logged?

The IP Lookup tool queries public geolocation APIs. We do not store your IP address or lookup history.

Why do geolocation results differ between providers?

Each provider maintains its own IP-to-location database with different update cycles and coverage. Treat any single result as an approximation, not an exact address.