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WiFi guides

SentryFi guides

Public WiFi safety guides

Plain-language guides for the networks travelers actually use. Venue facts come from each venue’s own website, linked on every page.

Start here

Is public WiFi safe?The honest answer Travel eSIM checkWhich country does your data exit from?

Airports

Is airport WiFi safe?Overview JFK Airport_Free JFK WiFi Heathrow AirportHeathrow Wi‑Fi DFW AirportDFW Public 5G Wi-Fi O’Hare AirportBoingo Hotspot Changi Airport#WiFi@Changi Frankfurt AirportAirport-Frankfurt Sydney AirportSydney Airport Free WiFi Haneda AirportHANEDA-FREE-WIFI Narita AirportFreeWiFi-NARITA Istanbul AirportiGA WiFi

Places and brands

Hotel WiFiLogin pages and lookalikes Marriott WiFiBonvoy member internet Airbnb WiFiHost-run networks Café WiFiCoffee shops and coworking Airplane WiFiIn-flight sign-in Delta WiFiDeltaWiFi.com Cruise WiFiSatellite internet at sea Amtrak WiFiOnboard train WiFi

Fixes

Login page not loading — iPhone8 fixes Login page not loading — AndroidPrivate DNS, MAC, portals Captive portal not showingAny device

SentryFi is not affiliated with any airport, hotel, airline or brand on these pages. We only state what each venue publishes and link to it.

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