Billing Instructions Document

1. Billing Model

Billing Condition: Charges apply only when a request returns 200 (Sucess). No fees are incurred for any other status codes.

2. Common Examples

Example 1: Successful Website Unlocking

A. If the request succeeds with 200, billing applies normally. B. Even if the target website itself returns a 4xx error, we still charge as long as our system responds with 200.

Example 2: Failed Requests (No Billing)

The following scenarios do not incur charges (see the full reference table for other cases):

429 (Too Many Requests) – Request exceeds concurrency limits.

500 (Internal Server Error) – Server-side failure.

504 (Gateway Timeout) – Server timeout/no response.

3.Status Code Reference Table

Code	Status	Description	Billed
200	Sucess	The request was successful, and the complete search engine results page data was retrieved	Yes
300	Not collected	Failed to parse/process the response, resulting in no valid data being collected	NO
400	Bad Request	Invalid parameters were passed	NO
401	Unauthorized	Authentication failed; please check the token validity	NO
429	429 Too many requests	The target server refused to fulfill the request	NO
500	500 Internal Server Error	The requested resource does not exist	NO
504	504 Timeout Error	The request rate exceeded the API limit	NO