What is an exit survey?

[fisherinjurylaw]

An exit survey is the type of survey you show visitors when they are about to leave your website. For example, you can make the survey pop up when a visitor moves their mouse cursor upwards and towards their browser toolbar. This is usually the moment that people leave your site.

[murugaaprml]

Exit interviews are valued by most employers. When someone leaves a position for another company.

[HeavenlyBorn]

In business. Exit interviews in business are focused on employees that are leaving a company or when employees have completed a significant project. The purpose of this exit interview is to gain feedback from employees in order to improve aspects of the organization, better retain employees, and reduce turnover.

[imriakapoor]

Exit interviews are valued by most employers. When someone leaves a position for another company.

I think this is not the one relevant to SEO, as @OP has mentioned

[efusionworld]

Reasons People Leave Your Website
* If the design is outdated
* Content is difficult to read
* Site relies on outdated plugins
* Too Many Ads
* Videos on your site auto-play
* Site lacks personality
* Navigation structure is unclear
* Site isn’t responsive

[RH-Calvin]

An exit survey is the type of survey you show visitors when they are about to leave your website.