This page outlines all relevant limits and limitations present when using the Vercel platform.
To prevent abuse of our platform, we apply the following limits to all accounts.
Deployments Created per Day
Serverless Functions Created per Deployment
Serverless Function Execution Timeout (Seconds)
Proxied Request Timeout (Seconds)
Deployments Created from CLI per Week
Team Members per Team
Vercel Projects Connected per Git Repository
Build Time per Deployment (Minutes)
Below are two examples that provide further information on how general limits work.
Check out this section for more details about the limits of the Analytics feature on Vercel.
The maximum duration of the Build Step is 45 minutes. When the limit is reached, the Build Step will be interrupted and the Deployment will fail.
All log types - Build Time, Edge Network, and Runtime - have differing behavior when it comes to storing logs.
During the Build Step, the last 2,000 log lines are stored and persisted.
For Edge Network requests, all logs are not persisted.
For Serverless Functions, only logs from failed requests are persisted.
All other logs are stored in memory only and are not persisted between page views. Each log output is limited to 4 KB. For log outputs greater than 4 KB per Serverless Function invocation, only the last 4 KB will be retained.
The maximum number of domains that can be applied to a single project is
The maximum number of files that can be uploaded when creating a Deployment is
12,500 for source files and
16,000 for build output files.
Deployments that contain more files than the limit will fail at the build step.
The amount of time (in seconds) that a proxied request (
routes with an external destination) is allowed to process an HTTP request. The maximum timeout is 30 seconds.
If the external server does not reply until the maximum timeout is reached, an error with the message
ROUTER_EXTERNAL_TARGET_ERROR will be returned.
The Vercel platform does not currently support HTTP/2 Push.
Serverless Functions do not support WebSockets.
The maximum size for a Serverless Function is 50 MB and the maximum unzipped size is 250 MB including layers which are automatically used depending on Runtimes. These limits are enforced by AWS to ensure you can't deploy Serverless Functions that take a long time to boot.
You can configure functions with
excludeFiles which may affect the function size, however the limits cannot be configured.
The maximum memory size for a Serverless Function deployed on a Personal Account (Hobby plan) is 1024 MB. For Teams (Pro plan), it can be increased to up to 3008 MB.
You can use the functions property to adjust the memory size for each Serverless Function.
The amount of time (in seconds) that a Serverless Function is allowed to process an HTTP request before it must respond. The maximum execution timeout is 10 seconds when deployed on a Personal Account (Hobby plan). For Teams, the execution timeout is 60 seconds (Pro plan) or 900 seconds (Enterprise plan).
For more information, see the Execution Timeout section.
The maximum number of concurrent executions for Serverless Functions is
1000 by default. The concurrency limit is shared across all Projects deployed to a Team and can be observed with the usage of Log Drains.
If you require a limit above
1000, you should contact our sales team to discuss custom limits available on an Enterprise plan.
The maximum payload size for the request body or the response body of a Serverless Function is 5 MB.
If a Serverless Function receives a payload in excess of the limit it will return an error - 413: FUNCTION_PAYLOAD_TOO_LARGE.
Vercel does not support streaming responses from Serverless Functions due to an upstream limitation from AWS.
This means that background tasks, also known as "fire-and-forget" is not supported. Once the Severless Function returns the response payload, it stops processing including any pending background tasks.
The same limitation applies in the Project Creation Flow when importing an existing Git repository or when cloning a Vercel template to a new Git repository as part of your Git organization.
Rate limits are hard limits that apply to the platform when performing actions that require a response from our API.
The rate limits table consists of the following four columns:
- Description - A brief summary of the limit which, where relevant, will advise what type of plan it applies to.
- Limit - The amount of actions permitted within the amount of time (Duration) specified.
- Duration - The amount of time (seconds) in which you can perform the specified amount of actions. Once a rate limit is hit, it will be reset after the Duration has expired.
- Scope - Who the limit applies to:
ownerrefers to the account owner,
userrefers to an individual user on a Team account.
Below are five examples that provide further information on how rate limits work.
You are able to delete up to
60 domains every
60 seconds (1 minute). Should you hit the rate limit, you will need to wait another minute before you can delete another domain.
You are able to delete up to
20 teams every
3600 seconds (1 hour). Should you hit the rate limit, you will need to wait another hour before you can delete another team.
You are able to change your username up to
6 times every
604800 seconds (1 week). Should you hit the rate limit, you will need to wait another week before you can change your username again.
You are able to build
32 Deployments every
3600 seconds (1 hour). Should you hit the rate limit, you will need to wait another hour before you can build a deployment again.
You are able to deploy
100 times every
86400 seconds (1 day). Should you hit the rate limit, you will need to wait another day before you can deploy again.