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_ga_# [x3]Used to send data to Google Analytics about the visitor's device and behavior. Tracks the visitor across devices and marketing channels.
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_gcl_au [x2]Used by Google AdSense for experimenting with advertisement efficiency across websites using their services.
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IDE待定
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gwccEnables Google Website Call Conversions - This registers if the visitor has clicked on call within the "contact us" sub-page. This information is used for statistics and marketing purposes.
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NWBUsed by South Korean Company, Naver Analytics for web analytics that tracks and reports website traffic
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wcs_btUsed by South Korean Company, Naver Analytics for cross site web analytics
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