For ChromeOS devices to work on a domain with TLS inspection (also known as SSL inspection), some hostnames need to be exempt from inspection. This is because certificates can only be imported at the user level and are only honored for user-level traffic. Some device-level traffic doesn’t use the TLS or SSL certificate to protect users against certain kinds of security risks.
To ensure that ChromeOS devices work with TLS inspection or networks restricting external traffic, you need to allow the following hostnames on your proxy server. For details on how to allow hostnames, check with your web filter provider.
- July 20, 2022: Added additional hostnames to allowlist for Safe Browsing endpoints
- February 1, 2022: Added additional hostnames to allowlist for all ChromeOS devices
- July 26, 2021: Added additional hostnames to allowlist for ChromeOS devices using Chrome extensions and apps (Chrome Web Store)
- April 21, 2021: Added additional hostnames to allowlist for all ChromeOS devices
- February 20, 2021: Added additional hostnames to allowlist for all ChromeOS devices
- August 11, 2020: Added additional hostname to allowlist for all ChromeOS devices
- March 3, 2020: Added additional hostnames to allowlist for Google Play
- December 16, 2019: Added cloudsearch.googleapis.com to return Google Drive results when searching from the Chrome address bar
- June 25, 2019: Changed *gvt1.com to *.gvt1.com and added *.1e100.net
- September 25, 2018: Added chromeos-ca.gstatic.com
- July 20, 2018: Added *gvt1.com
- March 15, 2018: Added policies.google.com
- December 22, 2017: Added alt*.gstatic.com
- July 13, 2017: Added accounts.google.[country]
- March 1, 2017: Added hostname to allowlist for ChromeOS devices using Android apps
- January 19, 2017: Removed cache.pack.google.com
- September 28, 2016: Added mtalk.google.com
- December 2, 2015: Added hostnames to allowlist for single-app kiosk devices
- August 5, 2015: Added accounts.gstatic.coms
Hostname allowlist for all ChromeOS devices
1 For more information, see What is 1e100.net?
2 For accounts.google.[country], use your local top-level domain for [country]. For example, for Australia use accounts.google.com.au, and for United Kingdom use accounts.google.co.uk.
3If you're running ChromeOS version 62 and you're seeing the error "Network not available," you may need to allow the host alt*.gstatic.com through your firewall on port 80. If this doesn't resolve the issue, see this full list of hosts to allow.
Additional hosts to allow
You need to allow the additional hostnames for TLS inspection to work correctly if you're using:
- Chrome extensions or apps from the Chrome Web Store on ChromeOS devices, including single-app kiosk devices.
- Android apps from the Google Play Store on ChromeOS devices
Hostname allowlist for ChromeOS devices using Chrome extensions and apps (Chrome Web Store)
If you use Chrome extensions and apps on ChromeOS devices (Chrome Web Store), including single-app kiosk devices, allow the following hostnames in addition to the hostnames listed above:
Hostname allowlist for ChromeOS devices using Android apps (Google Play Store)
If you use Android apps on ChromeOS devices (Google Play Store), allow the following hostname in addition to the hostnames listed above under Hostname allowlist for all ChromeOS devices.