Yes, indeed.  The URL prefix of 'https://' means that your current web page has been encrypted so that no one can digitally eavesdrop on the page content. Https is the standard through which online banking is conducted.  Using complex mathematical algorithms, the secured web page content is scrambled for everyone other than the reader and the sender.  About.com explains more about https here...

Would you let an 8-year-old have your credit card? Well, that's basically the situation when you let kids play with your iPhone or iPad. You see, 'in-app' purchasing has become the sneaky standard with 'freemium' app software. If you don't pay attention, you'll rack up hundreds of dollars from your kids trying out in-app software. Here is how you can prevent this unpleasant invoice experience...

_{(photo by Eternity in an Instant / Getty Images)}

Yes, 'derp' is a modern jargon expression for saying 'stupid!' or 'doh, that's obvious'.  When referring to groups of people who exhibit idiotic behavior, 'derps' is now a common insult name.  Use of the word derp is very common in online gaming, Reddit commentaries, and Facebook posts.  Whether you see it spelled as 'derp' or 'durp', the meaning is the same: someone is getting insulted.

About.com explains more about derp here...

There are many reasons to create a viral meme curiosity, and then spread it around the Web. Memes are absurd, funny, and at times: even profound. Creating a meme can be a creative challenge, and a real personal victory when it finally goes viral. About.com explains 7 reasons why you would ever create an internet meme...