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Platform-managed domain

As explained in Effective Platform Engineering

A platform-managed domain is a domain reserved and administered exclusively by an engineering platform for standardized self-service subdomain use.

A platform-managed domain reserves a domain exclusively for the engineering platform, giving development teams standardized DNS subdomains and ingress patterns through self-service. section 7.1.3

The platform controls the left side of the domain: users cannot create new subdomains, but they can manage the right-of-domain pattern within approved boundaries. This reduces naming and traffic-routing friction without immediately introducing fully custom domains. section 7.1.3

A practical implementation typically provides:

  • Standard subdomains such as api, qa, dev, and preview. section 7.1.3
  • Hosted-zone delegation and ingress configuration that route traffic to platform services. section 7.1.3
  • An evolutionary path toward customer-managed subdomains or custom domains when justified. section 7.1.3
Table 7.1 Zone delegations for the Epetech engineering platform

Subdomain hosted zone delegation

account-1

account-2

prod-i01-aws-us-east-2.epetech.io

X

api.epetech.io

X

qa.epetech.io

X

dev.epetech.io

X

sbx-i01-aws-us-east-1.epetech.io

x

preview.epetech.io

x

Use the zone-delegation table to compare platform-managed environments and account-specific hosted zones. section 7.1.3

How Effective Platform Engineering covers it

How deep it goes
Explains ownership boundaries, staged domain strategies, DNS routing, and hosted-zone delegation with Terraform examples.
Examples
Uses epetech.io with api, qa, dev, preview, and environment-specific hosted-zone delegation.
What it assumes
Assumes product-domain decisions and engaged software-development leadership for naming and ownership choices.
What you can do after
Operate standardized self-service DNS and ingress patterns while deferring custom-domain complexity.
How it connects
Connects DNS, hosted zones, ingress patterns, API gateways, subdomains, and custom domains.
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