# Sources domain exchanger

> The Sources domain exchanger replaces a domain in all your links at once, for example when a host moves to a new domain. This page explains how the replacement works, what to type so it only changes the right links, and what to do afterwards.

Source: https://doothemes.com/docs/dbmovies/tools/sources-domain-exchanger

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![Dbmovies › Tools › Sources domain exchanger, with the Old domain and New domain fields and the result of the last exchange](https://cdn.wupdater.com/dbmovies/docs/6c5677543522b24c.webp)

## Overview

Hosts change their domain from time to time, for example from `streamhost.com` to `streamhost.to`. When that happens, every link you have on the old domain stops working. The **Sources domain exchanger** replaces the old domain with the new one in all your links at once, so you do not have to edit them one by one.

You find it in **Dbmovies › Tools**, or in the **Tools** menu of **Dbmovies › Links** (**Domain exchanger**). Only administrators can use it.

## How the replacement works

The tool looks for the exact text you type in **Old domain** inside the address of every link, and replaces it with the text in **New domain**.

- **It matches text, not whole domains.** The text is replaced wherever it appears in the address, also as part of a longer domain or of a path.
- **It is exact.** Upper and lower case must match.
- **It changes the address of the link only.** Subtitles, quality, language, password and the other details of each link stay as they are. Your titles are not touched.

You can type a domain, such as `streamhost.com`, or the start of an address, such as `https://streamhost.com/`.

### Type as much as you can

Because it matches text, a short value can change links you did not want to change. Include the protocol and the slash at the end:

| You type in Old domain | It also changes |
|---|---|
| `host.co` | Links on `host.com`, `myhost.co` and `cdn.host.co` |
| `host.co/` | Links on `myhost.co/` and `cdn.host.co/` |
| `https://host.co/` | Only links that start with `https://host.co/` |

If your links use more than one form of the address, such as `https://host.co/` and `https://www.host.co/`, run the tool once for each form.

## Exchanging a domain

1. Make a backup of your database.
2. Go to **Dbmovies › Tools › Sources domain exchanger**.
3. Type the current address in **Old domain**, for example `https://streamhost.com/`.
4. Type the new address in **New domain**, for example `https://streamhost.to/`.
5. Click **Exchange**.

:::note
The exchange runs as soon as you click **Exchange**, without asking for confirmation, and changes all the matching links at once. Check what you typed before clicking.
:::

The panel shows how many links were updated. Under the button, it keeps the result of the last exchange and how long ago it ran.

- **"No matches were found, no rows were altered."** No link contains that text. Check upper and lower case, and the `www.` part.
- **"You can only exchange valid domain names or URLs."** Both fields need a domain with its extension, such as `.com`, optionally with the protocol and a path.

## Undoing an exchange

You can run the tool again with the two domains swapped. This only gives back the original links if **none** of your links used the new domain before the first exchange: otherwise, those links change too.

That is why the backup matters: it is the only sure way back.

## After the exchange

- **Check the health of your links.** Their health scores are from the old domain. Run [Analyze link health](https://doothemes.com/docs/dbmovies/tools/analyze-link-health) to check them against the new one.
- **Clear your cache.** If your site uses a page cache or a CDN, clear it so your visitors get the new links.