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Atlas Platform Docs

Limits and plan availability

Atlas follows Vercel's multi-tenant limits and feature availability. Use this page to understand which Vercel plan requirements affect Atlas deployments.

Feature availability

FeatureHobbyProEnterprise
Custom domains50Unlimited*Unlimited*
Multi-tenant preview URLsEnterprise onlyEnterprise onlyEnterprise only
Custom SSL certificatesEnterprise onlyEnterprise onlyEnterprise only

* Vercel applies soft limits of 100,000 domains per project on Pro and 1,000,000 domains per project on Enterprise. Those limits can be raised by Vercel support.

Wildcard domains

  • Available on all plans.
  • Require Vercel nameservers for wildcard SSL issuance.

Custom domains

  • SSL certificates are issued automatically for verified domains.
  • Ownership verification is required when the domain is already in use on Vercel.

Preview requirements

  • Multi-tenant preview URLs require a custom preview deployment suffix.
  • The suffix domain must be active in the same Vercel team.
  • The suffix domain must use Vercel nameservers.
  • Atlas resolves tenant-prefixed preview hosts, but Atlas publish currently creates production deployments only.

Rate limits

Vercel applies API rate limits to domain operations. As of March 27, 2026, the documented defaults are:

  • Domain addition: 100 requests per hour per team
  • Domain verification: 50 requests per hour per team
  • Domain removal: 100 requests per hour per team

DNS and hostname limits

  • DNS propagation can take 24-48 hours.
  • Each DNS label is limited to 63 characters, so keep preview branch names short when you combine them with tenant prefixes.