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New Source IP Addresses Added for Takumi Assessments

· 2 min read
Andrew Bulin
Andrew Bulin
Software Engineer @ GMO Flatt Security Inc.

As we strengthen the infrastructure that runs Takumi assessments, from November 2, 2026, we are adding new source IP addresses that Takumi uses.

If your firewall, WAF or GitHub organization restricts access by IP address, please allow the new addresses by Monday, November 2, 2026.

What Changes​

From November 2, 2026, Takumi may send requests from the following new source IP addresses, in addition to the current ones.

57.181.160.191
13.193.20.236
13.192.129.171
35.73.41.87
13.193.159.19
54.95.249.68
3.115.77.204
13.158.171.234

The source IP addresses currently listed in Source IP Addresses Used by Takumi remain in use. If we stop using any of them in the future, we will announce it in advance.

What You Need to Do​

If you restrict access to your assessment targets by IP address, add the new source IP addresses to your allow list by November 2, 2026, and keep the current addresses as they are. Otherwise, requests from the new addresses may be blocked, and assessments may fail or miss part of the target.

The same applies if your GitHub organization uses an IP allow list for the GitHub integration.

If you do not restrict access by IP address, no action is needed.

Fixing the source IP addresses remains a beta feature, so Takumi does not guarantee that all of its access originates from the listed addresses. See Source IP Addresses Used by Takumi for details.