> For the complete documentation index, see [llms.txt](https://davidtancredi.gitbook.io/pentesting-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://davidtancredi.gitbook.io/pentesting-notes/r3dcl1ff/webapp-pentest/attack-surface-recon/gungnir.md).

# gungnir

Gungnir is a command-line tool written in Go that continuously monitors certificate transparency (CT) logs for newly issued SSL/TLS certificates.

```
go install github.com/g0ldencybersec/gungnir/cmd/gungnir@latest

#Usage

gungnir (will output ALL new CT domains, huge output)

gungnir -r domains.txt  (only monitor a series of targets)

#Bounties

Use notify to stay on top of new targets in scope
```