Lab Worksheet – What’s in the Digital World?

Lesson: What’s in a Digital World?
Focus: IP Lookup & WHOIS Investigation
Tools: Browser-based, no installation needed
Time: ~25–30 minutes
Goal: Learn how to trace digital identities using IP and domain lookup tools.

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🎯 Lab Objectives

By the end of this lab, students will:

• Understand what an IP address is and how it relates to websites
• Use public lookup tools to find information about an IP or domain
• Read WHOIS records to identify the owner, registrar, and technical details
• Reflect on how digital traces are stored and revealed online

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🌐 Step 1: What Is an IP Address?

💬 IP = Internet Protocol address — a unique number assigned to every device on the internet.

👉 Go to this website to see your own IP address:
🔗 https://whatismyipaddress.com

🖊 Write down your IP (v4 or v6), location, and ISP provider.

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🔍 Step 2: Investigate a Website (Using IP Lookup)

You will now investigate the digital footprint of a real website.

Website to analyze:
🕵️ https://cyber-school.co.il

1. Open: https://iplocation.net
2. Type the domain above and press search
3. View the server IP and its location

📝 Answer:

• What is the IP address of the site?
• Where is the server located?
• What hosting company or cloud service is used?

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🧾 Step 3: Run a WHOIS Lookup

WHOIS is a public record system that stores ownership details for websites and domains.

1. Go to: https://who.is
2. Enter: cyber-school.co.il
3. Scroll through the WHOIS record

📝 Answer:

• Who is the registrar?
• When was the domain created?
• When does it expire?
• Is the contact info public or hidden?

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⚠️ Bonus Task (Advanced)

Try looking up another domain:
openai.com or google.com

Find and compare:

• Server country
• Hosting provider
• WHOIS privacy settings

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💡 Reflection Questions

1. What surprised you about what was publicly available?
2. Why do some domains hide their WHOIS info?
3. How could this data be useful to cybersecurity professionals?
4. What does this teach you about your own digital identity?

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🛡️ Cyber Safety Reminder

• IP and domain lookup tools are legal and public — but use them ethically.
• Just because something is visible online doesn’t mean you should misuse it.