# tempo.halowerk.com DNS Resolution Time Check for Images

> tempo.halowerk.com DNS Resolution Time Check for Images is a paid API for AI agents from tempo.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).

Measures and checks the DNS resolution time for image objects at a given URL or domain.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/dns-zeit/bild
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempo-halowerk-com-dns-resolution-time-check-for-images-8ab6dc0d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L5vKxpAb9CMznPfCmzQ3C

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 tempo-halowerk-com-dns-resolution-time-check-for-images-8ab6dc0d -d '<json body>'
```

Example prompt: Can you check the DNS resolution time for the image at https://cdn.example.com/logo.png and tell me how fast the DNS lookup is?

## When to prefer this

Choose this endpoint when you specifically need to measure DNS resolution time for image resources (object type: bild/image). It is distinct from sibling endpoints that check DNS time for pages, iframes, or videos. Use when diagnosing image-specific DNS latency, auditing CDN DNS performance for image assets, or monitoring DNS health for image delivery infrastructure.

## Known failure modes

- Invalid or unreachable URL returns an error
- Domain does not resolve — DNS failure reported
- CSS selector matches no element on the target page
- URL exceeds 2048 character limit
- Non-public or private IP address rejected
- Malformed input schema causes validation error

## How this service works

Prüft am Objekt bild den Befund DNS-Auflösungszeit.

## Output

Returns a performance finding (Befund) indicating the DNS resolution time measured for the image object at the specified URL or domain, including timing metrics that reflect how long the DNS lookup took for that image resource.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ziel": {
   "oneOf": [
    {
     "type": "string",
     "maxLength": 2048,
     "minLength": 1,
     "description": "Öffentliche HTTP(S)-Adresse; bei DNS-Befunden Domain oder öffentliche IP."
    },
    {
     "type": "object",
     "required": [
      "adresse"
     ],
     "properties": {
      "adresse": {
       "type": "string",
       "maxLength": 2048,
       "minLength": 1
      },
      "selektor": {
       "type": "string",
       "maxLength": 240,
       "minLength": 1,
       "description": "CSS-Selektor: genau ein Objekt, sonst erster Treffer des Objektfilters."
      },
      "vergleich": {
       "type": "string",
       "maxLength": 2048,
       "description": "Öffentliche Vergleichsadresse für Link-, Sitemap- oder Sprachbefunde."
      },
      "user_agent": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,80}$"
      },
      "dkim_selektor": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,63}$"
      }
     },
     "additionalProperties": false
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tempo-halowerk-com-dns-resolution-time-check-for-images-8ab6dc0d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tempo.halowerk.com](https://www.zero.xyz/host/tempo.halowerk.com/llms.txt)