---
title: "account.apple.com: what it is and what breaks if you block it · Kilobat"
url: "https://kilobat.app/hosts/account-apple-com"
description: "account.apple.com and appleid.cdn-apple.com serve Apple Account sign-in in System Settings. What breaks if you block them on a Mac."
---

Security and accounts

# account.apple.com

`account.apple.com` and `appleid.cdn-apple.com` serve Apple Account authentication in Settings and System Settings. Apple lists them for every platform.

Run by Apple · Ports: 443 TCP · Checked: 1 November 2026

## Short answer

Apple's hosts for Apple Account authentication in Settings and System Settings.

Don’t block

Don't block them. Signing in to your Apple Account in System Settings can fail.

Matches

`account.apple.com` `appleid.cdn-apple.com`

A name with `*.` covers every name under it: `*.push.apple.com` matches `1-courier.push.apple.com`.

## What it serves

Apple's enterprise host list names both in its Apple Account section, on port 443, with proxy support. Apple describes them as “Apple Account authentication in Settings and System Settings”.

They sit next to [`idmsa.apple.com`](https://kilobat.app/hosts/idmsa-apple-com), which Apple lists for Apple Account authentication in general.

`appleid.cdn-apple.com` is under `cdn-apple.com`, which Apple also lists for iCloud services. Kilobat matches this exact name first.

## Processes that use it

- [akd](https://kilobat.app/processes/akd): Part of macOS, not documented by Apple. It is the AuthKit daemon, and its launchd services cover Apple Account sign-in and Sign in with Apple.

## What breaks if you block it

Don’t block

Don't block them. Signing in to your Apple Account in System Settings can fail.

What breaks if you block it

- Signing in, or managing your Apple Account, in System Settings can fail.

With Kilobat Pro and the network filter, you can block a host for every app or for one app: in Connections, select a connection and choose Block. Apple’s own services are never blocked by Kilobat’s [Protection](https://kilobat.app/docs/blocking#protection) lists.

## Apple’s rules for its hosts

Apple’s list, [Use Apple products on enterprise networks](https://support.apple.com/en-us/101555), says that devices open these connections, not Apple’s servers. Apple services fail any connection that uses HTTPS interception, so a proxy that inspects TLS should leave Apple’s hosts alone.

If a firewall allows hosts by name, allowing `*.apple.com` covers most Apple services, Apple says. A firewall that works only with addresses can allow `17.0.0.0/8` for IPv4, and `2403:300::/32`, `2620:149::/32` and `2a01:b740::/32` for IPv6.

To see which app on your Mac opened a connection to this host, use Kilobat’s Connections tab, or the [agent network log](https://kilobat.app/docs/agents#agent-network-log) for AI agents.

## Sources

- [Apple Support: Use Apple products on enterprise networks](https://support.apple.com/en-us/101555)

Checked on 1 November 2026.

## Related

- [idmsa.apple.com](https://kilobat.app/hosts/idmsa-apple-com): Apple's Apple Account authentication hosts. Signing in to iCloud, the App Store and Xcode needs them.
- [*.cdn-apple.com](https://kilobat.app/hosts/cdn-apple-com): An Apple content delivery domain. Apple lists it for iCloud services; update and sign-in hosts sit under it too.