> ## Documentation Index
> Fetch the complete documentation index at: https://docs.webapp.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Documentation

> Explore our guides and examples to integrate webapp.io

## What is webapp.io?

Webapp.io is a hyper-optimized DevOps platform for webapps.

We build testing VMs in *seconds* every time you push code to GitHub, GitLab, or BitBucket.

* Our VMs automatically hibernate when they aren't being used
* We let you duplicate VMs to make copies of your stack and run acceptance tests in parallel
* We take [snapshots](/snapshots) of the VM as it builds, so that future builds can entirely skip `docker pull` or `npm install`

<video className="rounded" autoPlay muted>
  <source src="https://webapp.io/static/assets/what-is-webapp-arrows.mp4" type="video/mp4" />
</video>

### What happens when I sign up?

1. You'll install webapp.io onto a GitHub, GitLab or BitBucket repository
2. Our onboarding will guide you to build a [Layerfile](../layerfile-reference/intro) which defines your VM build
3. You commit your Layerfile, and we'll automatically build it into a VM every time you push a commit.

### What can serverless VMs be used for?

Our users primarily use serverless VMs for three things:

1. Preview environments - by making a Layerfile with the [EXPOSE WEBSITE](../layerfile-reference/expose-website) directive, you immediately get an environment deployed for every pull request.
2. Acceptance tests - by making a Layerfile with [SPLIT 5](../layerfile-reference/split), you can build your stack and fork it five times to run tests in parallel.
3. Hosting - by using [webapp.io hosting](../hosting/introduction), you can make ephemeral environments stick around and not shut off.

At webapp.io, we're building a *serverless VM platform*. You can even create multiple Layerfiles and combine them into powerful DevOps workflows to help your team ship 10x faster.

## Limits

### General Limits

The following general limits are applied to all Webapp.io accounts to prevent
abuse.

| -                                          | Starter         | Pro                 | Team                  | Scale                                  |
| ------------------------------------------ | --------------- | ------------------- | --------------------- | -------------------------------------- |
| Number of members                          | 3               | 10                  | 50                    | Unlimited                              |
| **CI/CD Features**                         |                 |                     |                       |                                        |
| Concurrency                                | None            | 6 parallel VMs      | 12 parallel VMs       | Custom based on server size            |
| Debugging terminal access                  | ✔               | ✔                   | ✔                     | ✔                                      |
| BUTTON feature                             |                 | ✔                   | ✔                     | ✔                                      |
| INHERITANCE feature                        |                 | ✔                   | ✔                     | ✔                                      |
| SPLIT feature                              |                 | ✔                   | ✔                     | ✔                                      |
| GitHub, GitLab, BitBucket Integrations     | ✔               | ✔                   | ✔                     | ✔                                      |
| Cypress, Reflect.run, Doppler Integrations | ✔               | ✔                   | ✔                     | ✔                                      |
| API & Webhooks                             | ✔               | ✔                   | ✔                     | ✔                                      |
| Layerfile Analytics                        |                 |                     | ✔                     | ✔                                      |
| Custom performance reports                 |                 |                     |                       | ✔                                      |
| Custom integration requests                |                 |                     |                       | ✔                                      |
| **Production-like preview environments**   |                 |                     |                       |                                        |
| Access to free domain cidemo.co            | ✔               | ✔                   | ✔                     | ✔                                      |
| Secure preview environments                | ✔               | ✔                   | ✔                     | ✔                                      |
| Retry feature                              | ✔               | ✔                   | ✔                     | ✔                                      |
| Version history guarantee                  | None            | 15 days for 10 URLs | 30 days for 50 URLs   | Custom                                 |
| Bandwidth                                  | 10GB            | 100GB               | 1TB                   | Custom                                 |
| Number of private previewers               | 3               | 10                  | 50                    | Custom                                 |
| **Full stack hosting**                     |                 |                     |                       |                                        |
| Host your full stack MVPs                  | ✔               | ✔                   | ✔                     | ✔                                      |
| Domains per organization                   | 1               | 5                   | 10                    | Unlimited                              |
| **Server access**                          |                 |                     |                       |                                        |
| VM access                                  | 2 VMs           | 7 VMs               | 12 VMs                | Custom based on private server         |
| Server type                                | Shared          | Shared              | Shared                | Private                                |
| **Support, Security & Compliance**         |                 |                     |                       |                                        |
| Technical support levels                   | Community Forum | Email               | Email & Slack Connect | Email, Slack Connect & Video with SLAs |
| Custom roles and permissions               |                 |                     | ✔                     | ✔                                      |
| SOC2 and HIPAA support                     |                 |                     | ✔                     | ✔                                      |
| Security reviews                           |                 |                     |                       | ✔                                      |
| Pay by invoice                             |                 |                     |                       | ✔                                      |

If your project is likely to exceed these limits, please [contact sales](https://webapp.io/contact/sales) to discuss solutions.