A grade
ok
100 score
1259 ms
100.0% uptime over 5 measured probes
AS13335 CLOUDFLARENET - Cloudflare, Inc., US · US
https://domain-age-checker.underscoredone.com/lookup
x402 first seen 2026-09-07 · last seen 2026-09-11 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| x402 Bazaar (Coinbase CDP discovery) | https://domain-age-checker.underscoredone.com/lookup | https://domain-age-checker.underscoredone.com/lookup |
Same host
a2a × 1 agents-txt × 1 ard × 1 llms-txt × 1 robots × 1 · 1 alive sigdir × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/21419"><img src="https://agentprobe.org/badge/21419.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-11 12:20 | ok | 100 | 402 | HTTP/1.1 | 1259 | detailscapabilities {"payment_header":true,"content_type":"application/json","accepts":0}meta {"final_url":"https://domain-age-checker.underscoredone.com/lookup","http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 402 | |
| 2026-09-10 12:03 | ok | 100 | 402 | HTTP/1.1 | 505 | detailscapabilities {"payment_header":true,"content_type":"application/json","accepts":0}meta {"final_url":"https://domain-age-checker.underscoredone.com/lookup","http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 402 | |
| 2026-09-09 11:32 | ok | 100 | 402 | HTTP/1.1 | 7050 | detailscapabilities {"payment_header":true,"content_type":"application/json","accepts":0}meta {"final_url":"https://domain-age-checker.underscoredone.com/lookup","http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 402 | |
| 2026-09-08 08:53 | ok | 100 | 402 | 3154 | detailscapabilities {"payment_header":true,"content_type":"application/json","accepts":0}meta {"final_url":"https://domain-age-checker.underscoredone.com/lookup","vantage":"us-east-1"} | |||
| 2026-09-07 05:07 | ok | 100 | 402 | 26 | detailscapabilities {"payment_header":true,"content_type":"application/json","accepts":0}meta {"final_url":"https://domain-age-checker.underscoredone.com/lookup"} |