Error codes

Pay per crawl error responses include a crawler-error header with a specific error code. The following table provides a complete reference of all possible error codes:

Error Code	HTTP Status	What to do
CrawlerForbidden	403	The site owner has blocked your crawler. You cannot access this content.
StrongAuthRequired	400	Include valid Web Bot Auth headers with strong authentication in your request.
InvalidSignature	400	Include both signature-input and signature headers in your request. Refer to Web Bot Auth documentation.
InvalidCrawlerPriceValue	400	Check that your crawler-exact-price or crawler-max-price header value is properly formatted (for example, USD 0.01).
MissingCrawlerPrice	402	Include either crawler-exact-price or crawler-max-price header in your request.
PaymentFailed	403	Verify your payment processing is configured correctly in Pay Per Crawl settings. Contact Cloudflare support if the issue persists.
InvalidCrawlerExactPrice	402	Update your crawler-exact-price to match the crawler-price value from the response header.
InvalidCrawlerMaxPrice	402	Increase your crawler-max-price to meet or exceed the crawler-price value from the response header.
ConflictingPriceHeaders	400	Use only one price header per request. Remove either crawler-max-price or crawler-exact-price.
InvalidContentPrice	502	The origin returned an invalid price. This is a site owner configuration issue. Try again later or contact the site owner.
InternalError	500	A server error occurred. Retry your request with exponential backoff.