# Sift Web Tools – Tech Stack Detection

> Sift Web Tools – Tech Stack Detection is a paid API for AI agents from sift.srv1996466.hstgr.cloud, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-23).

Detects and returns the technology stack (frameworks, CDNs, servers, analytics, etc.) used by any public website

## Facts

- Endpoint: GET https://sift.srv1996466.hstgr.cloud/v1/tech?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sift-web-tools-tech-stack-detection-ac89a18e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dTy3fTCqvqU_3oJ_0BvNK

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 sift-web-tools-tech-stack-detection-ac89a18e
```

Example prompt: What technologies is shopify.com running — things like their server, CDN, frameworks, and analytics tools?

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call technology fingerprint of any public website without setting up your own crawling infrastructure. It is ideal for competitive intelligence, sales qualification, security scoping, or partner due diligence. Prefer it over manual inspection or dedicated OSINT platforms when cost-per-call economics matter and you need JSON output compatible with automated pipelines.

## Known failure modes

- Non-public or paywalled URLs may return incomplete or empty technology lists
- Heavily obfuscated or headless-only sites may evade detection
- Invalid or unreachable URLs return an error rather than HTTP 200 (no charge)
- Some modern SPAs may not expose enough signals for full detection
- Rate limits or bot-blocking on the target site may prevent successful fetching

## How this service works

Detect the technologies a website uses (CMS, frameworks, analytics, CDN). Detects CMS, e-commerce platform, JS framework, analytics, payments, CDN and server software from a page's HTML and headers.

## Output

A JSON object listing the detected server software (e.g. 'cloudflare') and an array of identified technologies (e.g. ['Shopify', 'Google Tag Manager', 'Cloudflare']), based on analysis of the target page's HTTP headers, HTML, and scripts.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Page URL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "server": "cloudflare",
  "technologies": [
   "Shopify",
   "Google Tag Manager",
   "Cloudflare"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sift-web-tools-tech-stack-detection-ac89a18e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sift.srv1996466.hstgr.cloud](https://www.zero.xyz/host/sift.srv1996466.hstgr.cloud/llms.txt)