This started in 2010 and recently Google renewed the logo I noticed today after opening the homepage, the new version has more cakes and firework than the previous version, both versions below.

Of course, the logo is only shown when you are logged in. Google shows the birthday Doodle based on the date in your profile. How does Google know when to show you your own Google Birthday Doodle? It’s pretty simple actually. How does Google know when to show your Google Birthday Doodle? When it’s your birthday, there’s no search query like with normal doodles, but in this case, your own profile on Google+ will open. When you normally click on the doodle you would be directed to a search about the topic of Google’s Doodle that day. When the magical moment of your birthday has arrived and you go to the homepage of the search engine, you will find the Google logo looks like a birthday celebration! When hovering over the image with your mouse the text ‘Happy Birthday ’ will show. To be more specific, Google celebrates your birthday! You get your own special doodle. You probably noticed that Google has been celebrating birthdays as well. The one that is most liked is the Google Birthday Doodle.

The creation process of a doodle is very interesting as well as you can see below in the video.

Many sites talk about them whenever Google comes up with a new one. The Google Doodle’s have become almost like a collector’s item in the past few years.

Doodle today google