HTTP & webhooks

HTTP, webhooks, DNS, TLS and public network checks.

22 tools22 available now

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

Web page to MarkdownExtract readable Markdown, text and links from a public page.Available

Robots and sitemap checkerCheck crawl rules and sitemap documents for a public page.Available

HTTP echoSee exactly what your HTTP client sends.Available

WebSocket testerConnect to a public WebSocket endpoint and inspect its handshake, messages and close code.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

Request forwardingCapture requests and forward them to another endpoint.ProAvailable

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.

Webhook capture and forwarding
HTTP inspection and simulation
DNS and TLS diagnostics

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