China ISP Ad Injection

By Xah Lee. Date:

It appears, that China is doing ISP-level ad-blocking and ad-injection.

Following are screenshots of xahlee.info, of the page: Guide to Keyboard Key Switch Mechanisms. Screenshots taken in Hangzhou, China, taken on .

xahlee.info is hosted in USA, and main audience is North American. xahlee.info runs Google Ads, and also amazon.com ads.

In the following screenshots, the square ads on the lower corner is foreign, likely injected by China's ISP.

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China ISP Ad Injection
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China ISP Ad Injection
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China ISP Ad Injection

Articles about ISP-level Ad injection:

[How a banner ad for H&R Block appeared on apple.com—without Apple's OK. Someone, somewhere is injecting banner ads into webpages on the sly. By Nate Anderson. At http://arstechnica.com/tech-policy/2013/04/how-a-banner-ad-for-hs-ok/ , accessed on 2015-07-24 ]

Web Spam, Scam, SEO

  1. YouTube Scamer Stealing Video
  2. Twitter “JavaScript Teacher” Spam
  3. Web Domain Farm
  4. Do Not Donate to Wikipedia
  5. China ISP Ad Injection
  6. Snopes Runs Spam
  7. Unicode Confusables Spam, 2012
  8. favspam
  9. Buy Followers Scam
  10. Twitter Spam Farm 2011
  11. Twitter Spam Farm 2012
  12. Facebook Fraud
  13. Translation SEO Scam
  14. Ask a Question Scam
  15. Machine Generated Spam
  16. Pretty Girl Spam
  17. Seo Hack on Alexa
  18. Where Do Spammers Came From
  19. Linkedin Spam Filter Collateral Damage
  20. Daily Mail Stealing Images

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