# SiteSignal Canonical Hreflang Indexing Snapshot

> SiteSignal Canonical Hreflang Indexing Snapshot is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.025/call, status down (last checked 2026-09-15).

Fetches and inventories a public webpage's canonical URLs, hreflang alternates, indexing directives, navigation relations, viewport, referrer policy, and invalid link references.

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/seo-directives
- Price: $0.025/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-canonical-hreflang-indexing-snapshot-a7155169
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4BfcoWTSbpFy4S2GzjODu

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 sitesignal-canonical-hreflang-indexing-snapshot-a7155169
```

Example prompt: Can you pull the canonical URL, hreflang alternates, and indexing directives for https://www.example.com/en/products — I want to see a full SEO directives snapshot including any invalid link references?

## When to prefer this

Choose this endpoint when you need a focused, single-page technical SEO snapshot covering canonical, hreflang, and indexing signals without a full crawl. It is ideal for auditing individual landing pages, verifying international SEO alternate tags, or checking indexing directives before or after a deployment. Prefer this over a full sitemap or crawl tool when you only need on-page metadata signals for one specific URL.

## Known failure modes

- URL is not publicly accessible or returns a non-2xx status — endpoint returns an error
- Page has no canonical or hreflang tags — fields returned empty or null
- URL parameter missing or malformed — request validation error
- Limit parameter out of range (below 1 or above 100) — validation error
- Cloudflare or target server rate-limiting — timeout or 429 response
- Non-HTML content type at URL (e.g. PDF) — may return empty or partial results

## How this service works

Inventory one public page's canonical URLs, hreflang alternates, indexing directives, navigation relations, viewport, referrer policy, and invalid link references.

## Output

Returns a structured snapshot of the page's canonical URL, hreflang alternate links with their language/region codes, indexing directives (noindex, nofollow, etc.), navigation relation links (prev/next), viewport meta content, referrer policy value, and any detected invalid or malformed link references — all sourced from the live public page.

## 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",
       "format": "uri"
      },
      "limit": {
       "type": "integer",
       "default": 50,
       "maximum": 100,
       "minimum": 1
      }
     }
    }
   },
   "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/sitesignal-canonical-hreflang-indexing-snapshot-a7155169/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)