Welcome back.
Good job you've made it this far and you're probably asking yourself, Andre, this has been really
good, really informative, but where's the coning?
I want to start building some websites and I know I know we'll get there.
Don't worry.
But without even realizing it, you just learned some really, really important fundamental skills and
something that will take you very, very far in the career of a web developer, because now you know
how to improve website performance without a single line of code.
And just so you know, we're going to get a little silly here.
We're actually going to make sure that you remember these fundamental skills every time throughout these
lessons.
There's going to be chunks of very important lessons and to symbolize how important they are.
I'm going to get Jean-Claude van Dam's help.
So, again, this is an important lesson.
This is an important, fundamental web developer concept.
So Jean-Claude Van Damme, how important is it?
All right, so as you can see, very important concept and what is it?
Well, like I said, without writing a single line of code, you now know how to improve website's performance.
So let's think about this.
There's three things we send Google Dotcom.
We talked to Google servers and we get these files back.
So just looking at this and looking at what you've learned so far, what's one thing that would make
sure that this process would be fast?
Let's look at the first one.
I'm going to give you a second to think, hopefully get it.
The first one is location of the server.
We saw how big the Internet backbone is.
So if the servers are really, really close to you, let's say you're in the states and the servers
are just a couple of kilometers away, that hop is going to be really, really fast versus if it's all
the way across the globe.
So location of the server is important and we'll talk about these and how big companies use these to
their advantage later on.
So that makes sense.
Let's look at the next one.
So the next one is how many trips?
So hopefully, ideally, we just have one trip to the Google servers and Google servers, send us all
the files that we need back.
But as we know, there's new pages, there's searches.
So this communication with Google is back and forth, back and forth.
And the less trips we have, the faster that we be able to get files.
So how many trips?
And then finally, size of files again, if this ASML file or txt file or JavaScript file is massive
and it's 100 megabytes.
Well, that's going to be a lot slower to transfer over the Internet than it is if it was just a couple
of kilobytes.
So there it is, these three things are something that you'll take with you and you'll realize that
every time you're building an application, a website, you're going to be thinking about these things.
And these are going to help you make sure that you have a performant fast website.
And we're going to take this with us as we go on throughout the course.
Talk to you soon.
Bye bye.