**Is your feature request related to a problem? Please describe.**
when exporter register to consul service , consul service display critical status. because this detail error message is ```HTTP GET http://xxxx:49157/: 404 Output:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

**Describe the solution you'd like**
add / interface support consul check.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**