In 200 words give original insite into three websites from the top 500 list: https://www.alexa.com/topsites
Make sure to include the following for each of the three websites:
The most important requirements/attributes are for their database
How their tables/entities are structured
Does this site have any potential bottlenecks?
What language/technologies do they use to interact with databases? (For some insight into this, check out this tool: https://wappalyzer.com/ )
Do they have a security policy? If so, do they mention databases and any policies regarding them?