Google AdSense
Google uses its highly sophisticated search engine algorithm to check your content and picks out the most popular keywords. This is the same process of Googlebot crawling your site for indexing in the search engine database. Hence the ads displayed will be the highest bid from the advertisers for those keywords in Google AdWords as well as will be merged into your site’s content.AdSense
Right away after implementing AdSense in your site, you may notice the ads are displayed randomly and not most relevant to your site content. The reason here is Google need sometime to crawl your site content and identify the keywords. Once the keywords are identified from your site content, AdSense delivers relevant text and image ads that are precisely targeted to your site and your site content. So if your content was all about movies and the terms “cinema”, “movie training” and “movie theater” were used frequently within the site content, Google would determine your site was about movies and would populate your site with movie related ads.The AdSense for Content code dynamically loads a JavaScript file from a Google server located nearer to the visitor’s geographical location. So Google AdSense ads are not only related to your content but also displayed in the native language of your visitors regardless of your content’s language. For example the person visits your site from China will see the Google ads in Chinese even though your content is in English. The ads in Chinese will be loaded dynamically from the nearest server location, which is Hong Kong in this case.
And when you add a Google search box to your site, Google exactly uses the same Google search mechanism and delivers relevant targeted text ads on Google search results pages generated for your visitors’ search request.
If you want to influence what adverts are displayed, you must have content that uses keywords and synonyms. Do not put too many random keywords into your content that form no sentence structure or make the content unreadable. If your content is about movies, you will not have to worry about keywords related to movies; the content will contain them naturally.
Dynamic Your Content, Dynamic AdSense Ads
Google AdSense uses technology that goes beyond just a keyword matching. Google grasps your content and automatically deliver ads relevant to your web pages. Even your site has millions of pages, it does not matter for Google to show appropriate ads in every pages of your site. When your content changes dynamically, typically in case of Blogs, Google understand your content and display relevant ads to match your content.
What is AdSense bot or Crawler?
A crawler or bot or spider is a piece of software code used to find and index the content of web pages. Google uses separate bots for desktop search, mobile search and AdSense for content. The AdSense bot scans the publisher’s website and serve appropriate ads relevant to content. Here are some useful information about AdSense bot:
AdSense bot crawls the websites once in a week and publisher’s can’t control the crawl rate. Note in case of Google webmaster tools site owners can control the rate of crawling unlike AdSense bot.
Google uses separate bots for search, AdSense and Webmaster Tools. Thus correcting any crawl issues noted in Webmaster Tools will have no impact on AdSense ads displayed.
AdSense bot treats example.com and www.example.com as two different sites the same way as search bots.
Use robots.txt file to control the access of AdSense bot. Pages forbidden by robots.txt file will not be crawled by AdSense bot.
AdSense bot only crawls the webpages from which the ad request is being sent.
If you are redirecting a page AdSense bot first crawls your original page to confirm the redirect.
