HTTP Header Checker

net

Inspect the response headers of any URL, including security headers.

POST /api/v1/http-headers

The endpoint path is always /v1. The schema number below tracks this tool's output shape and changes independently.

Network tool — this endpoint makes an outbound request.

Parameters

Parameter	Type	Required	Default
url	text	yes	—

curl -X POST https://sinikoding.dev/api/v1/http-headers \
  -H 'content-type: application/json' \
  -H 'x-api-key: tk_live_…' \
  -d '{"url":"…"}'

"output": { "kind": "table", "columns": ["…"], "rows": [["…"]] }

Try it

url

Calls a same-origin sandbox endpoint, not /api/v1. No key needed, capped at 15 requests a minute.

Request

curl -X POST https://sinikoding.dev/api/v1/http-headers \
  -H 'content-type: application/json' \
  -H 'x-api-key: tk_live_…' \
  -d '{"url":""}'

Response

Send a request to see the response.