# Domain DA/PA Checker

> Domain DA/PA Checker is a paid API for AI agents from bb-ecommerce-three.vercel.app, paid per call via x402, $0.088821/call, status unknown (last checked 2026-09-15).

Checks the Domain Authority (DA) and Page Authority (PA) metrics for a given domain name

## Facts

- Endpoint: POST https://bb-ecommerce-three.vercel.app/api/domain-da-pa-check
- Price: $0.088821/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-da-pa-checker-d9909adf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6PkXIvpDhWUX0PPoGmH6X

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 domain-da-pa-checker-d9909adf -d '<json body>'
```

Example prompt: Can you check the Domain Authority and Page Authority scores for shopify.com so I can see how strong their domain is for SEO purposes?

## When to prefer this

Use this endpoint when you need to quickly assess the SEO authority of a domain without full crawling — ideal for competitor research, link building evaluation, or vetting partner sites. Prefer this over manual Moz/Ahrefs lookups when automating bulk domain evaluation pipelines.

## Known failure modes

- Invalid or malformed domain name returns an error
- Domain not found or not indexed returns null or zero scores
- Rate limiting or payment failure returns 402 or 429 status
- Network timeout if the external authority data source is unavailable

## How this service works

BaseBuilder Ecommerce API hub - 19 paid endpoints

## Output

Returns the Domain Authority (DA) and Page Authority (PA) scores for the submitted domain, indicating its relative SEO strength and link profile quality on a 0-100 scale.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-da-pa-checker-d9909adf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-ecommerce-three.vercel.app](https://www.zero.xyz/host/bb-ecommerce-three.vercel.app/llms.txt)