LO2 Understand the factors that influence Website performance

User side

• connection speed (e.g. dial-up, broadband, mobile broadband, WI-FI)

• browser (e.g. latest, and older versions)

• PC Memory (e.g. cache, RAM).

  Server side

• server storage space

• bandwidth limitations

• pages with too many scripts

• website content (e.g. databases, file formats used for images, sound, video, animation, additional technologies such as AJAX, ActiveX).

  Security risks

• hacking

• pagejacking

• phishing

• viruses

• identity theft.

Security protection mechanisms

• firewalls

• secure socket layers (SSL)

• digital certificate

• use of passwords

• legal considerations (e.g. Data Protection Act, Privacy and Electronic Communications Regulations, Computer Misuse Act).

  Cases

• viruses, trojans and worms

• hackers (e.g. Adrian Lamo, Kevin Mitnick, MafiaBoy)

• identity theft (e.g. Abraham Abdallah).

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