HubSpot-hosted domains now require TLS 1.2 or newer

HubSpot automatically raised the minimum TLS version for domains it hosts to TLS 1.2 on October 14, 2026, for accounts that had allowed TLS 1.0 or 1.1. No action was required.

What happened

HubSpot posted on October 6, 2026 that domain security settings would move to a minimum of TLS 1.2. The change went live on October 14, 2026.

It affects accounts that had set the minimum TLS version for HubSpot-hosted domains to 1.0 or 1.1. HubSpot said the update is automatic and needs no action.

Why it matters

Modern browsers already use TLS 1.2 or 1.3, so visitors should see no change. Very old devices or scripts that only speak TLS 1.0 or 1.1 can no longer load HubSpot-hosted pages, which matters for things like legacy kiosks or old server-side integrations pulling from your site.