## The share link

A published experience has a link of its own — the address the
**Share** dialog copies. It always serves your latest published
version.

**It is not a public link.** Whoever opens it has to be signed in,
have confirmed their email address, and belong to your organisation.
Somebody outside your organisation who is handed the link gets "not
found" rather than a sign-in prompt.

That is the right behaviour for anything that records work, because
an attempt has to belong to somebody. The token in the link is
unguessable, but it is an address rather than a password — the gate
is what keeps strangers out.

⚠️ **So this is not the link to send to a class who have no accounts.**
Getting learners in is its own question, with three answers and no
painless one: read [Getting a class into your
experience](/support/articles/getting-a-class-in) before you hand
anything out.

If you need an address that works with no account at all, that is the
embed, and it comes with a real trade: see [Embedding an experience
in a page](/support/articles/embedding-in-a-web-page).

## Embedding

**Embed** gives you an iframe snippet for a web page, intranet or
course tool.

⚠️ **An embed is a different address from your share link, and
nothing a learner does inside it is recorded** — no activities, no
attempts, no contributions. Do not embed a task you intend to mark.
Read [Embedding an experience in a
page](/support/articles/embedding-in-a-web-page) first.

An embed moves with every future publish. If one group has to stay on
one version, give them that version's own link rather than freezing
the experience for everybody — see [Sending a class to one
version](/support/articles/sending-a-class-to-one-version).

Embeds need a reasonable amount of height. A 360° scene in a 300px-tall
frame is unusable; give it at least 500px, more if the page allows.

## Unpublishing

Unpublishing takes the experience out of circulation. Existing links
and embeds stop resolving. Attempts already recorded are untouched.