For AI agents: this page in Markdown: https://www.pubnub.com/docs/security/encryption/browser-connection-limits.md. Documentation index: https://www.pubnub.com/llms-full.txt.
Browser connection limits
Browsers cap the number of concurrent connections they open per host name. When you use a custom PubNub domain, all PubNub traffic routes through that host name, so these limits apply directly to your app.
| Browser | Connections per host name | Max connections |
|---|---|---|
| Chrome | 6 | 10 |
| Chrome mobile | 6 | 16 |
| Internet Explorer 9 | 6 | 35 |
| Internet Explorer Mobile 9 | 6 | 60 |
| Internet Explorer 10 | 8 | 17 |
| Internet Explorer 11 | 13 | 17 |
| Firefox | 6 | 17 |
| Safari | 6 | 17 |
| Android | 6 | 17 |