SSL Complete Guide 2021: HTTP to HTTPS - Overview of the Certificates of Some Popular Websites

The video tutorial explores the use of HTTPS in websites, focusing on Google and Instagram. It explains how HTTPS ensures secure connections, indicated by a lock icon, and discusses the importance of valid certificates issued by authorities like Global Sign and Digicert. The tutorial also covers certificate structure, validity, and the role of fingerprints in verifying integrity. Differences between certificates for Google and Instagram are highlighted, including wildcard usage and domain-specific certificates. The video concludes with a preview of the next lecture on HTTP vs HTTPS.

What does the lock icon in a browser indicate when visiting a website?

• The website is using HTTPS.

• The website is offline.

• The website is using HTTP.

• The website is not secure.

Which of the following is a criterion for determining the validity of an SSL certificate?

• The certificate's expiration date.

• The number of images on the website.

• The color of the website's background.

• The website's loading speed.

What is a wildcard certificate used for?

• Securing non-web applications.

• Securing only the main domain.

• Securing multiple subdomains of a domain.

• Securing a single webpage.

What information can be found in the details of an SSL certificate?

• The website's traffic statistics.

• The certificate's subject name and public key info.

• The number of users visiting the website.

• The website's design layout.

What is the purpose of certificate fingerprints?

• To track user activity on the website.

• To enhance the website's visual appeal.

• To increase the website's loading speed.

• To verify the integrity of the certificate.

What happens when you try to access Instagram.com without the 'www' prefix?

• The website displays a warning message.

• The website loads without any issues.

• You are redirected to the version with 'www'.

• You receive an error message.

Which certification authority issued the certificate for Instagram.com?

• Global Sign Certificate Authority

• Digicert High Assurance Root CA

• Google Internet Authority J3

• VeriSign