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Short lessons that explain one thing properly. Search for a word, or pick a subject and read it through from the basics.
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8 of 58 lessons about Websites, beginner level Show all lessons
Cyber security fundamentals
How attacks work, in plain words: ransomware, phishing, malware and the flaws they use.
1 of 8 lessons shown
Websites, hosting and domains
What happens between typing an address and seeing a page: domains, DNS, hosting, HTTPS and CDNs.
5 of 9 lessons shown
- How does a website work? What happens between typing a web address and seeing the page: the browser, the name lookup, the server and the files it sends back. Beginner 3 min read
- What is a domain name? A domain name is the readable address of your website and email. How names are built, who may hold a .au name, and why renewal matters. Beginner 3 min read
- What is web hosting? Web hosting is the service that keeps your website on a server and delivers it to visitors. The main kinds, and what to ask a host. Beginner 3 min read
- What is HTTPS? HTTPS is the encrypted way a browser talks to a website. What it protects for your visitors, what it does not, and how to turn it on. Beginner 3 min read
- What is an SSL certificate? An SSL certificate proves a website belongs to its domain name and lets browsers encrypt the connection. Who issues one, and why it expires. Beginner 2 min read
Search and website performance
Being found and being fast: how search engines read a site, caching and Core Web Vitals.
2 of 4 lessons shown
- What is search engine optimisation (SEO)? SEO helps search engines understand your website and helps people find it. How Google finds and ranks pages, and what SEO cannot promise. Beginner 3 min read
- What is website caching? A cache keeps a copy of your web pages so they load faster. Where the copies live, why an edit sometimes does not show, and how to clear them. Beginner 3 min read
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