Can my school see my browsing history, even at home?

Short answer: on a school Chromebook or laptop, yes. Assume your school sees the sites you visit and often your searches, at home too, and in incognito. On your own phone on school Wi-Fi, it sees site names, not pages. At home on your own device, it sees nothing unless you are signed in to your school account.

The answer turns on two things: who owns the device, and which account you are signed in to. The network matters less than most people think.

What your school can see in each situation

The rest of this post explains each row and how to check which one you are in.

What school monitoring software actually records

Most US schools do not watch traffic with a person staring at a screen. They buy a filtering and monitoring product, install it on every school device, and let it build reports. These vendors publish what their products do, and their own words are more precise than any guess.

• Securly Filter offers a "live activity feed" with "a visual audit trail of sites visited, exact searches, and video thumbnails," according to Securly's product page.
• Lightspeed Filter promises "full SSL and search visibility: see exactly what students search, watch, or attempt to access, not just top-level hostnames," and lets the school "export user-level logs with search terms, visited sites, and blocks," per Lightspeed.
• GoGuardian Admin provides "detailed student browsing reports" and an "out-of-school mode" that runs "24/7," per GoGuardian. Its classroom tool, GoGuardian Teacher, shows teachers "live student screen thumbnails" and lets them manage open tabs.
• Gaggle scans what students write and store, with "human review of every alert" by a "U.S.-based safety team," and it "provides coverage on nights, weekends, and holidays," per Gaggle's Safety Management page.

So the honest answer to "can my school see what I search" is that on a school device, many of these products are built to show exactly that. Some show a teacher your screen in real time during class.

Can my school see my history at home?

On a school device, usually yes. The monitoring lives in the device and its browser, not in the school building's router. Taking a Chromebook home does not turn it off, which is why vendors advertise out-of-school modes and why your home Wi-Fi changes nothing.

On your own device, the answer depends on what you are signed in to. Google's Chrome Enterprise documentation says it plainly: "Policies set for managed Google Accounts are enforced when users sign in to Chrome with their account, on any device," and the school can set them up for "both their personal and work devices" (Google, Manage user profiles on Chrome browser).

In practice, if you sign in to the Chrome browser itself on your home laptop with your school Google account, the school's settings, and any extensions it pushes to that account, can come with it. Signing in to a single website like Google Docs in a normal browser tab is different: the school sees what happens inside its own services, not your other browsing.

Can my school see my incognito history?

On a managed school device, incognito usually is not available at all. Google's admin documentation says that "for K-12 EDU domains, the default is Disallow incognito mode" (Chrome policies for users or browsers). If your Chromebook will not open an incognito window, that is why.

Even where it opens, incognito only stops your browser from saving history on the device. Google's own Chrome help page says that "organizations that manage your network, like your school, employer, or internet service provider, may be able to observe your activity in Incognito." Our guide to what incognito mode actually hides covers the rest.

Can my school see deleted history?

Yes, if it was recorded. Deleting history clears the copy in your browser. Monitoring tools send their logs to the vendor's servers as you browse, so there is nothing on the device for you to delete. On many school devices you cannot clear history anyway: the same Google admin page lists a "Clear browser history" policy that decides "whether users can clear browser data, including their browsing and download history."

Can school Wi-Fi see what I search on my phone?

On your own phone, the school network is in the same position as any other Wi-Fi owner. Almost every site and app uses HTTPS, so the network sees the names of the sites and services your phone connects to, when, and how much data moves. It does not see the specific pages, what you type into a search box, or your messages. Schools often enforce their filter on personal devices through DNS, the system that turns site names into addresses: GoGuardian and Lightspeed both describe DNS-based coverage for personal and guest devices.

Two things change that picture.

1. A school certificate. Some schools ask students to install a certificate or profile so the filter can decrypt HTTPS. Securly, for example, says it can "report on encrypted traffic" from unmanaged devices "with our unique selective SSL decryption." On an iPhone, a certificate you install by hand only works for this once you turn on full trust for it, a setting Apple documents in Certificate Trust Settings.
2. School apps and accounts on your phone. Anything you do inside your school email, school Google Drive or school chat belongs to the school's account, on any network.

What about texts? Regular SMS texts go over the cell network, not the school Wi-Fi. iMessage and WhatsApp are end-to-end encrypted, so the network sees that the app is in use, not what you wrote. For a deeper look at what any network operator sees, our guide to what the Wi-Fi owner can see goes layer by layer.

Why schools monitor at all

In the US, most public schools have a legal reason. The Children's Internet Protection Act ties federal internet discounts, the E-Rate program, to filtering. Schools in E-Rate "must also certify that their internet safety policy includes monitoring the online activities of minors," according to the FCC's guide to CIPA.

There is a useful detail in the same rules. Before adopting that policy, schools "must provide reasonable public notice and hold at least one public meeting or hearing." The policy is meant to be public. If you or a parent want to know what your district monitors and how long it keeps the records, ask the school or district for its internet safety policy and its acceptable use policy for school devices. The signed device agreement your family got with the Chromebook usually says it too.

How to check whether your device is monitored

These checks show you what is set up. They do not change it.

1. On a Chromebook or in Chrome, type chrome://management into the address bar. A managed browser or device says who manages it. Then open chrome://policy to see the list of rules the school has applied, and chrome://extensions for extensions you cannot remove, which are the ones installed by an administrator.
2. On an iPhone, open Settings > General > About > Certificate Trust Settings. Apple notes that if "Enable full trust for root certificates" does not appear, "you haven't installed any additional certificates." Also look under Settings > General > VPN & Device Management for any profile from your school.
3. On a Windows laptop, open Settings > Accounts > Access work or school. A connected school account shows up there.

If any of these show your school, treat that device or browser profile as one the school can see into.

Keep school and personal separate

The simplest rule is the one IT departments follow themselves: school things on school devices and accounts, personal things on personal ones. Personal email is the piece most students forget. Your school address is an account the school owns, may scan with tools like the ones above, and can close when you leave. A personal mailbox you control, such as the free plan of Secria Mail, is yours, and stored mail is under zero-access encryption.

FAQ

Can my school see my browsing history if I use my own phone at school? On school Wi-Fi, it can see the names of the sites and apps you connect to, not the pages or what you type, unless you installed a school certificate or profile. On mobile data, the school network is not involved at all.

Can my school see my search history at home? On a school device, yes in most cases, because the monitoring software runs on the device. On your own device, only if you are signed in to Chrome with your school account, which can bring the school's Chrome policies with it.

Can my university see my browsing history? A university network can see the same site-level picture as any network you join, and anything you do inside your university account belongs to the university. What it records and keeps is set by its IT and acceptable use policies, which most universities publish.

Can teachers see my screen? If your school uses a classroom management tool, yes, during the times the school allows it. GoGuardian Teacher, for example, shows teachers live thumbnails of student screens and lets them close or open tabs.

Does deleting my history stop the school from seeing it? No. Monitoring tools record activity as it happens and store it with the vendor, so clearing your browser only removes the copy on the device.

Your school sees what happens on its devices and in its accounts, wherever you are. Keep the personal parts of your life on your own device and in accounts you own.