01Perform comprehensive callsign lookups including name, grid, DXCC, license class, QSL information, and image.
02Resolve DXCC entities efficiently from callsigns or entity codes using the QRZ XML API.
03Retrieve logbook statistics such as total QSO count, DXCC entities worked, and date ranges from your QRZ logbook.
04Fetch and filter specific QSOs from your QRZ logbook with transparent pagination for large datasets.
05Implement robust rate limiting, authentication failure freezes, and connection refused detection to prevent QRZ IP bans, alongside in-memory response caching.
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