Blogger never shows correct stats for Adsense because blogger reports everything - spam visitors, robots, people without JavaScript in their browsers, people with ad blockers turned on etc. Adsense doesn't record any of those.
Google count page views and impressions only when ad code is executed by a user's browser. There are therefore several factors that would cause a discrepancy between the statistics you register in your logs and those listed in your AdSense account. Instances that wouldn't execute the code include:
Another reason why you might see a difference between your AdSense reports and your own statistics is invalid activity. Google remove clicks and impressions derived from some forms of invalid activity from reporting data, so you might see slightly higher metric values for clicks and impressions in your own statistics.
Google count page views and impressions only when ad code is executed by a user's browser. There are therefore several factors that would cause a discrepancy between the statistics you register in your logs and those listed in your AdSense account. Instances that wouldn't execute the code include:
- Spiders, robots, or crawlers from other search engines
- Browsers that don't have JavaScript enabled or don't support JavaScript
- Browsers that don't support the <iframe> tag
- Programs that people may have written to grab website content
Another reason why you might see a difference between your AdSense reports and your own statistics is invalid activity. Google remove clicks and impressions derived from some forms of invalid activity from reporting data, so you might see slightly higher metric values for clicks and impressions in your own statistics.
