Before building a website, understanding the language of coding is very important. There are three foundations for the coding language. First, the HTML5 which is used for the structure of the site. second, the CSS3 which is used to add style to the site. Third, the Javascript which is used to make the site functional. Understanding the foundation language will give the ability to succeed on building a successful website.
Why understand database?
Database is used to store the information that is related to a website. It can save the products sold and the files that relates to the data. Database software tools are primarily used for storing, modifying, extracting, and searching for information.

I like how the title of your blog is a question. I was confused at first, but then I realized it looks like a phrase that someone would search in Google and compelled me to seek the answer in your blog. I wish you expanded more on the content subjects, this seems like a brief introduction leaving the reader on a cliff-hanger.
Great use of pictures! I like that you used the pictures to convey the information and used little text. It made the blog not feel too cramped but still managed to fit lots of great info!