> For the complete documentation index, see [llms.txt](https://docs.insert.link/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.insert.link/domain-lookup.md).

# Domain Lookup

It allows you to check the backlink profile of one or more websites by retrieving a list of referring domains that contain links to the specified domains.

### 1. How do I perform a search?

1. Click the search field to open the domain input pop-up.
2. Enter the domains you want to check. Each new line represents a separate domain. You can enter between 1 and 3 domains.
3. Click Submit in the pop-up to confirm your input.
4. After confirmation, the search field will display the first domain along with a +1 or +2 indicator, depending on how many additional domains were added.
5. Click Submit on the page to view the results.

### 2. How many domains can I check in a single request?

You can enter 1 to 3 domains per request.

### 3. What happens if I close the pop-up without saving?

The pop-up can only be closed by clicking Submit or the Cancel button. Clicking outside the pop-up will not close it. If you click Cancel, the pop-up will close, and any previously saved domains will remain unchanged.

### 4. Are the entered domains saved when I reopen the pop-up?

Yes. Previously entered domains remain populated when you reopen the pop-up.

### 5. How can I purchase placement on a found domain?

Click the Buy button next to the desired domain. It will be added to your Guest Post cart.

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