Platform

Dedicated IPv4 Address

Attach an IPv4 address to your database

The Supabase IPv4 add-on provides a dedicated IPv4 address for your Postgres database connection. It can be configured in the Add-Ons Settings.

Understanding IP addresses

The Internet Protocol (IP) addresses devices on the internet. There are two main versions:

  • IPv4: The older version, with a limited address space.
  • IPv6: The newer version, offering a much larger address space and the future-proof option.

When you need the IPv4 add-on:

  • When using the direct connection string in an IPv6-incompatible network instead of Supavisor or client libraries.
  • When you need a dedicated IP address for your direct connection string

Enabling the IPv4 add-on

You can enable the IPv4 add-on in your project's add-ons settings. Enabling the add-on may briefly disable your database during reconfiguration.

Read replicas and IPv4 add-on

When using the add-on, each database (including read replicas) receives an IPv4 address. Each replica adds to the total IPv4 cost.

Changes and updates

  • While the IPv4 address generally remains the same, actions like pausing/unpausing the project or enabling/disabling the add-on can lead to a new IPv4 address.

Supabase and IPv6 compatibility

By default, Supabase Postgres use IPv6 addresses. If your system doesn't support IPv6, you have the following options:

  1. Supavisor Connection Strings: The Supavisor connection strings are IPv4-compatible alternatives to direct connections
  2. Supabase Client Libraries: These libraries are compatible with IPv4
  3. Dedicated IPv4 Add-On (Pro Plans+): For a guaranteed IPv4 and static database address for the direct connection, enable this paid add-on.

Checking your network IPv6 support

Most services are IPv6 compatible, but some exceptions exist (listed below). To verify your personal network supports it, run this command on your server:


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curl -6 https://ifconfig.co/ip

If it returns an IPv6 address then your system is compatible. An example IPv6 address might look like: 2a05:d014:1c06:5f0c:d7a9:8616:bee2:30df.

Checking platforms for IPv6 support:

The majority of services are IPv6 compatible. However, there are a few prominent ones that only accept IPv4 connections:

Finding your database's IP address

Use an IP lookup website or this command (replace <PROJECT_REF>):


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nslookup db.<PROJECT_REF>.supabase.co

Identifying your connections

The pooler and direct connection strings can be found in the database settings:

Direct connection

IPv6 unless IPv4 Add-On is enabled


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# Example direct connection string
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postgresql://postgres:[YOUR-PASSWORD]@db.ajrbwkcuthywfihaarmflo.supabase.co:5432/postgres

Supavisor in transaction mode (port 6543)

Always uses an IPv4 address


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# Example transaction string
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postgresql://postgres.ajrbwkcuthywddfihrmflo:[YOUR-PASSWORD]@aws-0-us-east-1.pooler.supabase.com:6543/postgres

Supavisor in session mode (port 5432)

Always uses an IPv4 address


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# Example session string
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postgresql://postgres.ajrbwkcuthywfddihrmflo:[YOUR-PASSWORD]@aws-0-us-east-1.pooler.supabase.com:5432/postgres