strpos($_SERVER['HTTP_USER_AGENT'], 'SapphireWebCrawler/Nutch') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'kalooga/KaloogaBot') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'SimilarPages/Nutch-1.0-dev') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'SapphireWebCrawler/Nutch') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'kalooga/KaloogaBot') !== false ||
strpos($_SERVER['HTTP_USER_AGENT'], 'SimilarPages/Nutch-1.0-dev') !== false ||