Google officially states that the Indexing API is only for `JobPosting` and `BroadcastEvent` structured markup. However, if you format your API requests with `URL_UPDATED` payloads and rotate across 25 Google Cloud Project Service Accounts, Googlebot will fetch and crawl ANY webpage within 8 minutes. Quick Python snippet for rotating service account tokens: ```python from google.oauth2 import service_account from googleapiclient.discovery import build SCOPES = ['https://www.googleapis.com/auth/indexing'] # Rotate across service_account_01.json to service_account_25.json def submit_url(url, creds_file): credentials = service_account.Credentials.from_service_account_file(creds_file, scopes=SCOPES) service = build('indexing', 'v3', credentials=credentials) response = service.urlNotifications().publish(body={'url': url, 'type': 'URL_UPDATED'}).execute() return response ``` Each project allows 2,000 URLs per day quota. 25 projects = 50,000 backlinks submitted directly into the crawler queue daily.