# Interzoid Global Latency – URL Performance Tester

> Interzoid Global Latency – URL Performance Tester is a paid API for AI agents from api.interzoid.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Measures real-world page load performance for any URL from a specified global location, returning total load time, HTTP status, phase-by-phase timing breakdown, and a content preview.

## Facts

- Endpoint: GET https://api.interzoid.com/globallatency?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/interzoid-global-latency-url-performance-tester-90b65180
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qJ4YDzjz1wQCjpNvGh00Q

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 interzoid-global-latency-url-performance-tester-90b65180
```

Example prompt: Can you check how fast https://www.mystore.com loads from Tokyo right now — I want to see the full breakdown including DNS, TLS, and time-to-first-byte?

## When to prefer this

Choose this endpoint when you need real-world, phase-level HTTP performance data from a specific global geographic location — especially for CDN validation, regional latency benchmarking, or checking whether a site is reachable and fast from a particular country. Unlike synthetic ping tools, it provides full TLS, DNS, and TTFB breakdowns per request. Prefer this over generic uptime monitors when you need granular per-phase timing from named geographic origins at low per-call cost.

## Known failure modes

- Invalid or unreachable URL returns an error status and no timing data
- Unsupported or misspelled origin location may default to California or return an error
- HTTPS-only endpoints that reject non-standard user agents may return unexpected HTTP status codes
- Very slow or timing-out endpoints may return incomplete phase timings
- Network-level blocks (firewall, geo-restrictions) at the measurement origin return connection errors

## How this service works

Measure real-world page load performance (response time) for any URL from a chosen global location. Returns total load time in seconds, HTTP response status, a phase-by-phase timing breakdown (DNS, TCP connect, TLS handshake, time-to-first-byte, content transfer), and a content preview. Useful for global latency monitoring, CDN validation, and uptime/performance checks from multiple geographic origins.

## Output

Returns a JSON object containing: total page load time in seconds, HTTP response status code, a phase-by-phase timing breakdown (DNS lookup, TCP connection, TLS handshake, time-to-first-byte, content transfer durations), and a short preview of the returned content from the specified geographic origin.

## 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": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "The full URL to measure (https:// is assumed if no scheme is given)"
      },
      "origin": {
       "type": "string",
       "description": "Measurement location (e.g. \"California\", \"London\", \"Tokyo\", \"Frankfurt\", \"Singapore\", \"Sydney\", \"Virginia\", \"Sao Paulo\"). Optional; defaults to California."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/interzoid-global-latency-url-performance-tester-90b65180/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.interzoid.com](https://www.zero.xyz/host/api.interzoid.com/llms.txt)