http-header-checker.underscoredone.com
answeringSends a request to a web address you provide and reports back everything the server said in response: the status code, all the response headers, how many times it got redirected, and how long the whole thing took.
- Endpoint
- https://http-header-checker.underscoredone.com/check
- Price
- $0.01 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Tue, 08 Sep 2026 05:22:59 UTC
- Last probed
- Tue, 08 Sep 2026 05:22:59 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:22 UTC
- Sources
- cdp-x402
Probe history
Last 1 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Tue, 08 Sep 2026 05:22:59 UTC | challenge | http-402 | 402 | 435 ms |
JSON: /api/v1/services/http-header-checker.underscoredone.com. Own this service? Update the listing.