There appears to be rising worry regarding the AdSense code’s language issue. Most often, individuals claimed that all of their adverts had been converted to Japanese or Chinese, even if they had selected English as the site’s or advertisements’ primary language.
Even Google is unaware of this issue, despite the fact that it has a related post on its blog. To begin, if you preview the advertising using the HTML editor, the ad may switch to another language. It is quite normal, and you should not be concerned. Even if you submit it to the web, the advertisement may be shown in a different language.
This is because Google’s bot may take up to 48 hours to crawl your site. Before that, irrelevant ads or wrong-language ads may be shown. Again, Google has assured us that this is normal.
The paragraphs below are quoted from AdSense blogs: “Before our system can display targeted ads on your pages, our crawler first needs to access your pages.” While you’re building your pages within your HTML editor, your page has not yet been crawled, So you may sometimes see less-targeted ads or even ads in foreign languages.
After publishing a page to the web, you should begin to see advertisements in the relevant language. Additionally, please bear in mind that our crawler may take up to two weeks to review your site following any modifications, although your ad relevancy should increase with time.
As always, we appreciate your patience as the crawler continues its work. “Google has advanced technology to detect what Your content is about and deliver targeted ads to your site. This is why Google is so successful in its internet advertising industry.