
If the data occurrence time is applied to the panel PC time information, this may cause an accuracy problem in the time data. In order to solve the time handling issue, KoreanClick has applied the solution of collecting panel PC time and applying server time separately to apply the same standard. However, in order to apply the same standard time, the log data must be collected real-time which causes system overload. All of panel log data are collected on a real-time basis, but in order to solve the technical problems and lessen the burden on the log data collection server, KoreanClick has selected a lighter communication method. Margin of error for data collection is 0.01~ 0.02% and it doesn't affect the statistical result.

The Server Log method cannot measure the page saved in the user's PC as well as the page cached in Proxy Server. However, measurement data by KoreanClick includes sites viewed by the Cache and their pages.

Pageview is counted only when the web page that a visitor has clicked completes loading. However, when multiple iframes make up one page, only the Frame Set is included in the initial measurement, and the sub-iframe page is only counted as pageview when the visitor actually clicks and moves to the sub-iframe. Auto-refreshed pages that are automatically updated within a given period for the purpose of contents renewal and update are excluded from pageview. Pop-ups are divided into involuntary and voluntary. The first that pops up automatically when visiting a website is excluded from pageview, and the latter that appears only with the user's voluntary click such as the Mini Hompy is counted as pageview..
This is to measure only the pageview created by the visitors according to the user-centric principle instead of a site-centric rule. It is intended to remove the data involuntarily created by page composition, automatic setting and site operators.