HTTP & webhooks

Catch requests. Inspect connections. Test the unexpected.

20 tools18 available now

Webhook inboxCapture webhook requests and inspect their headers, query parameters, and body.Available

HTTP echoSee exactly what your HTTP client sends.Available

Request replayResend a captured request to a test endpoint.Available

Response builderReturn a custom status, headers, and response body.Available

Redirect testerInspect redirect chains and callback behavior.Available

HTTP status simulatorTest your application against any HTTP status.Available

Delay & timeout simulatorTest client loading states with configurable delays up to two seconds.Available

Fault injectionIntroduce controlled failures into integration tests.Available

SSE testerInspect server-sent events as they arrive.Available

CORS testerCheck cross-origin headers and preflight responses.Available

DNS lookupLook up domain records in one place.Available

DNS propagationCheck how DNS changes are reaching resolvers.Available

SSL & TLS inspectorInspect certificates, expiry, and TLS configuration.Available

WHOIS & RDAP lookupFind publicly available domain registration details.Available

HTTP header inspectorInspect response headers from a URL.Available

Link preview inspectorCheck URL metadata and Open Graph previews.Available

Network diagnosticsCheck connectivity and response latency.Available

Rate-limit simulatorTest retry and backoff behavior against quotas.Available

Full category roadmap

All the capabilities planned for this category. Availability is shown on each tool above.

Temporary webhook endpoints
HTTP request inspection
Request headers, query parameters, body, cookies, and metadata inspection
HTTP echo endpoints
HTTP request replay
Custom HTTP response generation
Redirect testing
HTTP status code simulation
Delayed responses and timeout simulation
Fault injection
Request forwarding
Request history
WebSocket echo/testing
Server-Sent Events (SSE) testing
CORS testing
DNS lookup
DNS propagation checks
SSL/TLS inspection
WHOIS/RDAP lookup
HTTP header inspection
URL metadata and Open Graph inspection
Network connectivity and latency diagnostics
API rate-limit simulation

“Coming soon” means planned, not available. We’ll only mark a tool ready when you can actually use it.