# agentx.sale DNS/TLS/HTTP Site Health Snapshot

> agentx.sale DNS/TLS/HTTP Site Health Snapshot is a paid API for AI agents from agentx.sale, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Returns a combined DNS, TLS, and HTTP health snapshot for a given domain, including connectivity and certificate status

## Facts

- Endpoint: GET https://agentx.sale/x402/site-health?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentx-sale-dns-tls-http-site-health-snapshot-1bad9175
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_svGrWRHw4-Xb0AM8Jk0Pz

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentx-sale-dns-tls-http-site-health-snapshot-1bad9175
```

Example prompt: Can you run a DNS, TLS, and HTTP health check on example.com and tell me if everything looks good — is the domain resolving, is the certificate valid, and is the site responding?

## When to prefer this

Choose this endpoint when you need a quick, combined DNS + TLS + HTTP health check for a domain in a single call, rather than running separate DNS lookup, SSL checker, or uptime monitor tools. Ideal for pre-launch validation, incident triage, or lightweight monitoring where a consolidated snapshot is more efficient than orchestrating multiple specialized tools.

## Known failure modes

- Domain does not exist or fails DNS resolution — returns DNS failure status
- TLS certificate expired or invalid — flagged in TLS health field
- Site is unreachable or times out — HTTP status reflects no response
- Missing required 'host' query parameter — request rejected
- Network or upstream probe failure — may return partial or error snapshot

## How this service works

DNS/TLS/HTTP health snapshot for a domain

## Output

A structured health snapshot covering DNS resolution status, TLS/SSL certificate validity and expiry details, HTTP response code, and overall connectivity status for the queried domain. Returns a combined verdict so agents can quickly determine whether a site is reachable, secured, and properly configured.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "host"
     ],
     "properties": {
      "host": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "host": "example.com",
  "dns_ok": true,
  "tls_valid": true,
  "latency_ms": 120,
  "http_status": 200
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentx-sale-dns-tls-http-site-health-snapshot-1bad9175/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentx.sale](https://www.zero.xyz/host/agentx.sale/llms.txt)