Tracking a WhatsApp number is essential for various reasons, whether it's for parental control, business monitoring, or personal security. With WhatsApp tightening privacy settings, users often hide their last seen or online status, making it challenging to know when someone is active.
Fortunately, WaLastseen offers an easy, accurate, and effective way to track WhatsApp activity. This guide explores everything you need to know about tracking WhatsApp numbers, including legal aspects, manual methods, and why WaLastseen is the best tool for the job.
In this article
Part 1: Understanding WhatsApp Tracking
1. What Does It Mean to Track a WhatsApp Number?
Tracking a WhatsApp number means monitoring:
- Last seen status – When a user was last active on WhatsApp.
- Online status – When a user is currently online.
- Activity patterns – How often a user is online.
Unlike hacking or unauthorized access, WhatsApp tracking is about observing publicly available or trackable information to gain insights into a person’s WhatsApp activity.
2. Common Reasons for Tracking WhatsApp Activity
People track WhatsApp numbers for various legitimate reasons:
- Parental Control: Parents monitor their children’s WhatsApp activity to ensure responsible usage.
- Business Monitoring: Employers track employees’ WhatsApp activity to ensure productivity.
- Personal Interest: Users track friends, family, or partners to know their availability.
3. Is Tracking a WhatsApp Number Legal?
Tracking WhatsApp activity is legal when done for ethical purposes, such as:
- Monitoring underage children (Parental control).
- Tracking employee activity on business-owned devices.
- Checking the online status of personal contacts.
However, unauthorized spying or hacking is illegal and violates privacy laws.
Part 2: How to Track a WhatsApp Number Effectively
1. Using WaLastseen to Track WhatsApp Online Status
If you’re looking for a fast, simple, and accurate way to track a WhatsApp number, WaLastseen is the best solution.
What is WaLastseen?WaLastseen is an advanced WhatsApp tracking tool that helps you monitor a person’s last seen and online status in real-time, even if it’s hidden.
2. Features of WaLastseen
- Online status tracking - WaLastseen helps to track the online status of any contact on WhatsApp, letting you know when the contact is active, online, or offline.
- Custom notifications - WaLastseen allows users to customize notifications for specific contacts, so you can choose if you want to receive when a contact comes online or posts on their status.
- WaLastseen shows hidden last seen - Usually, you can't tell when a contact is online if they hide their last seen and read receipts but WaLastseen shows the last seen of every contact even those that have hidden their last seen.
- User-friendly design - WaLastseen is easy to use and helpful to individuals and businesses alike.
- 100% Security - WaLastseen is 100% secure and guarantees user privacy because your data is end-to-end encrypted and protected from unauthorized access.
3. How to Use WaLastseen for WhatsApp Tracking
Follow the steps below to learn how to track a WhatsApp number using WaLastseen:
Step 1: Download and Install WaLastseen
Open your Android phone and go to the Google Play Store. Then enter "WaLastseen" in the text field above the screen to search for the WaLastseen app. Click on Install and wait for the app to be installed on your phone.

Step 2: Add Contacts to WaLastseen
On the next page, click on Add Contacts below the screen to add the numbers you wish to track. Click on Add+ next to a contact name to add the contact to your WaLastseen list.

Step 3: Start Tracking WhatsApp Number
Open your contact list on WaLastseen and choose a contact to track. Then click on Start Tracking below the screen.

Within a few seconds, WaLastseen will display the WhatsApp usage statistics of the selected contact on your screen. The data will be presented according to days and you can use the Calendar icon on the screen to choose your preferred date.

You can also set the time you wish to track someone and compare their time spent online over the last several days to discover chat probability.
Want to track a number on WhatsApp? WaLastseen is the way to go. The app is easy to use, offers fully customizable options, and displays in-depth information about any contact you track.
Part 3: Alternative Methods to Check WhatsApp Activity
Manually Checking Last Seen on WhatsApp
You can check someone’s last seen by:
- Opening WhatsApp and going to the contact’s chat.
- Looking under their name for the last seen time.

Using WhatsApp Web for Online Monitoring
Did you know that you can track a number on WhatsApp via WhatsApp web? WhatsApp web is the PC extension of WhatsApp that allows you to access your WhatsApp account, reply to messages, and monitor online activity via a web browser on your computer.
Step-by-Step Guide on How to Track a WhatsApp Number Using WhatsApp Web
Follow these steps to track a WhatsApp number using WhatsApp Web:
Step 1: Access WhatsApp Web on Your Web Browser
Open any web browser on your computer. Then enter "web.whatsapp.com" in the search bar and sign in with your registered phone number.

Step 2: Link Your WhatsApp Devices
Next, open WhatsApp on your phone and tap on Settings > Linked Devices. If you are using an Android phone, tap on the Ellipsis icon (3 vertical dots) at the top-right of the screen and choose Linked Devices.

Next, use your phone's camera to scan the QR code on the computer screen. This will instantly link your WhatsApp account to your PC and your messages on WhatsApp will be mirrored on your computer screen.
Step 3: Track any WhatsApp Number via WhatsApp Web
Once both devices are linked, you can track the WhatsApp messages, online status, and other information of the selected contact using WhatsApp web.
Note: Tracking a WhatsApp number via WhatsApp web can violate another user's privacy because you get to see their messages and private conversations with other people. This feature may be used by parents looking to monitor their kids.
Requirements and Limitations of Tracking a WhatsApp Number via WhatsApp Web
Here are the limitations and requirements of tracking a WhatsApp number via WhatsApp web:
- You must sign in to your primary device every 14 days
WhatsApp mandates you to sign in to the primary device every 14 days to keep your PC linked to your WhatsApp account.
- Tracking a WhatsApp number via WhatsApp Web requires a Computer
You can't use WhatsApp web to track a WhatsApp number if you don't have a PC. This can be a problem if you are trying to track on the go.
- Anyone you are tracking can easily detect and log you out
Since the devices are linked, the person you are tracking can see your PC listed as one of the linked devices to their account. This makes it very easy to spot you and log you out.
Part 4: Why Choose WaLastseen Over Manual Tracking?
Feature | Manual Tracking | WaLastseen |
Real-time tracking | ❌ No | ✅ Yes |
Check last seen if hidden | ❌ No | ✅ Yes |
Instant online notifications | ❌ No | ✅ Yes |
Track multiple contacts | ❌ No | ✅ Yes |
Works without sending messages | ❌ No | ✅ Yes |
🔹 WaLastseen saves time and provides accurate tracking without hassle!
Part 5: FAQs
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Can I legally track a WhatsApp number?
Yes, you can legally track a WhatsApp number if you are doing so with valid reason and without violating the user's privacy or WhatsApp's terms. You should use an app like WaLastseen that is designed to follow the industry's standard protocols for respecting user privacy and security online. Always check the laws guiding online tracking where you live before tracking a WhatsApp number to be sure you are not violating any rules. -
How can I protect myself from scammers on WhatsApp?
Always be alert and report any suspicious activity to WhatsApp. Also, don't click on links or reply to messages that ask you to share codes or passwords. You should also enable two-step verification to add an extra layer of security to your WhatsApp account.
Conclusion
Tracking a WhatsApp number is useful for parents, businesses, and individuals who need to monitor online activity. While manual tracking is unreliable, WaLastseen provides an easy and accurate solution to check last seen and online status in real-time.
💡 Ready to track a WhatsApp number? Try WaLastseen today and start monitoring WhatsApp activity effortlessly!