Certigo alternatives

Looking for a better tool, or simply want to learn about alternatives? There is typically more than one option.

Alternatives (by tag)


Alternative: addrwatch

Addrwatch is a tool similar to arpwatch to monitor IPv4/IPv6 and ethernet address pairing.

Similar to arpwatch, this tool addrwatch will monitor the pairing between ethernet and IP addresses.

Main features:

  • IPv4 and IPv6 address monitoring
  • Monitoring multiple network interfaces with one daemon
  • Monitoring of VLAN tagged (802.1Q) packets
  • Output to stdout, plain text files, syslog, sqlite3, MySQL
  • IP address usage history preserving output and logging


Alternative: USB Canary

USB Canary monitors the devices on a system for the addition or removal of USB devices. On such an event, then an alert will be sent.

USB Canary uses pyudev to monitor the addition or removal of devices while a computer is locked. This small utility is written in Python and can provide an alert by SMS or Slack.

Project details

USB Canary is written in Python.


  • + The source code of this software is available


  • - Full name of author is unknown

USB Canary project page


Alternative: Certificate Transparency

Google's Certificate Transparency project audits the way SSL/TLS certificates are used and its underlying cryptographic system.

HTTPS connections use cryptographic functions to provide confidentiality and integrity. It can provide features like domain validation, end-to-end encryption, and a trust chain from certificate authorities down to the end-user. Any flaws can endanger these goals, like the impersonation of a system, man-in-the-middle (MitM) attacks, and website spoofing. This project helps to find flaws and improve the overall security of our internet.


Alternative: clinker

Clinker is a tool to test SSL and TLS security for Firefox. It is an addon that shows the used cipher suites, certificates, and shows related security information of the connection itself.

Requirements: Firefox


Alternative: Lemur

Lemur manages TLS certificate creation and the underlying process that is required. It acts as a broker between a certificate authority (CA) and the environment

With Lemur you can provide a central portal for developers and administrators to issue TLS certificates with predefined defaults.

Lemur works on CPython 3.5 and uses the Flask framework. Another component it uses is cryptography to handle the creation of the certificates.

Netflix develops on macOS and deploys on Ubuntu servers.

Project details

Lemur is written in Python.


  • + More than 500 GitHub stars
  • + The source code of this software is available
  • + Supported by a large company

Typical usage

  • certificate management

Lemur project page