# tempo.halowerk.com TLS Negotiation Time Check for Redirects

> tempo.halowerk.com TLS Negotiation Time Check for Redirects 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 reports the TLS handshake (negotiation) time for a redirect resource object on a given URL.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/tls-zeit/weiterleitung
- 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-tls-negotiation-time-check-for-redirects-0dfe30e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kWxAH1ddmCzBajDHXhY1S

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-tls-negotiation-time-check-for-redirects-0dfe30e0 -d '<json body>'
```

Example prompt: Can you check the TLS negotiation time for the redirect at https://example.com/old-page and tell me how long the handshake is taking?

## When to prefer this

Use this endpoint when you specifically need to measure TLS handshake time for a redirect resource (Weiterleitung) rather than for a main page, image, font, stylesheet, or iframe. It is the right choice for diagnosing TLS-related latency on redirect paths or auditing redirect performance as part of a broader web performance monitoring workflow. It complements sibling endpoints that measure other resource types or timing metrics.

## Known failure modes

- Target URL is unreachable or returns a non-HTTP response — endpoint returns an error or null timing
- URL does not result in a redirect — finding may be empty or report inapplicable
- Malformed URL or URL exceeds 2048 characters — validation error returned
- CSS selector matches zero elements — first matching object fallback used or error returned
- Private/non-public IP address provided — rejected as not a valid public address
- TLS negotiation times out — timeout error returned

## How this service works

Prüft am Objekt weiterleitung den Befund TLS-Aushandlungszeit.

## Output

Returns a performance finding (Befund) containing the TLS negotiation (handshake) time measured for the redirect resource at the specified URL, expressed as a timing metric.

## 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-tls-negotiation-time-check-for-redirects-0dfe30e0/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)