On most Wi-Fi, yes for what you read and type on https:// sites: they're encrypted, so the network and the people near you can't read your passwords or messages. What the network does see is which sites you open, and an open network or a fake hotspot can do more. The checks below look at the network you're on right now.
This Network's Address:
216.73.217.32
Columbus, Ohio, United States · Anthropic, PBC
Anthropic, PBC is an ordinary internet provider. Homes, offices and most hotels and cafés look like this from outside, so the name alone can't tell which one you're on. The questions below can.
This Network, Checked
Network owner:
Anthropic, PBC (AS16509)Looks like an ordinary provider: homes, offices, most hotels and cafés.
Provider
VPN or relay:
NoneThe network can see which sites you open, not what's on them.
Off
Wi-Fi or Mobile Data:
checking…
Round Trip:
checking…
Encryption to this site:
TLS 1.3 (HTTP/2)Between your browser and this site, as on any https:// site: the network can't read the page.
Encrypted
Questions Only You Can Answer
Did your device ask for a Wi-Fi password when you joined?The network's own password, not a login page in the browser.
The air between your device and the router is encrypted. Everyone with the same password is inside it too, though: on older (WPA2) networks someone with that password and the right tools can decode other people's traffic.An open network: anything that isn't https:// goes over the air as it is, and anyone nearby can record it. Phones list such networks without a padlock, often with a warning like "Unsecured network".Look at your Wi-Fi list: a padlock next to the network's name means it needs a password.
Did you get the network's exact name from staff, a sign or the airline?
Good. Fake hotspots copy names like "Free_Airport_WiFi" and wait for people to pick theirs.Ask for it. Anyone can name a hotspot after the place, and your device can't tell the real one from a copy. Two networks with almost the same name are a reason to ask.If you picked it from the list because the name fit, ask staff whether it's theirs.
Did a login page ask for the password of another account (Google, Facebook, email) or for card details for free Wi-Fi?
Normal: real login pages ask for a room number, an email address, a seat or booking number, or just a click.Don't type it. Free Wi-Fi has no reason to need your account password, and fake hotspots use such pages to collect logins. If you already did, change that password over mobile data.Fine: many networks have none.
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What This Wi-Fi Can See
Without a VPN
With a VPN
Which sites you open (bank.com, not the pages)
Usually yes
No
What you read and type on https:// sites
No
No
Everything on http:// pages and in old apps
Yes
No
When you're online and how much data you use
Yes
Yes
Your device's Wi-Fi hardware address
Yes (recent phones and laptops show each network a random one)
Yes
You're not on a VPN now: the left column applies.
What makes a Wi-Fi network risky
Mostly three things. No password: traffic goes over the air unencrypted, and only https keeps it private. A fake hotspot: someone nearby names a network after the café or the airport, and devices join it as if it were the real one. A login page that asks for more than it needs: free Wi-Fi doesn't need your Google or bank password.
The US Federal Trade Commission's advice is that public Wi-Fi is usually safe now that nearly every site encrypts its pages. The three questions above are about the cases where it isn't.
What a web page can't check
Whether the network has a password. Your device knows (the padlock in the Wi-Fi list); a page doesn't.
Whether it's the real network or a copy with the same name.
Whether other devices on it can reach yours. Good public networks keep guests apart from each other; no page can test it.
Who else is connected, and what runs on the router.
How to stay safe on public Wi-Fi
Ask staff or look for a sign with the network's exact name, and pick that one.
Prefer a network with a password (a padlock in your Wi-Fi list) to an open one.
Look for https:// and never click through a browser warning that the connection isn't private.
Turn off file sharing, and set AirDrop to Contacts Only.
For banking or work, switch to mobile data or turn on a VPN.
When you leave, forget the network so your device doesn't join a copy of it later.
Can someone on the same Wi-Fi see what I'm doing?
Not on https:// sites: they can see that your device is sending data, and at most which sites you open. On an open network, anything that isn't encrypted can be recorded by anyone nearby, which today is mostly old apps and http:// pages.
Is it safe to use public Wi-Fi for banking?
Banking sites and apps are encrypted, so it's usually fine on a network you've checked. On an open network, on a copy of a hotspot, or wherever a browser warning pops up, use mobile data instead.
Can the Wi-Fi owner see my history?
They can see which sites you open, in private or incognito mode too: that mode only stops your own browser from keeping a history. They can't see the pages or what you type on https:// sites. A VPN hides the site names as well.
Does a VPN make public Wi-Fi safe?
It encrypts everything between your device and the VPN server, so the Wi-Fi sees only that you're connected to a VPN. It doesn't stop you from typing a password into a fake login page, so the other checks still matter.
