123 Dyno Beta

Autoscaling and load analytics for maximum web dyno performance. Starting at $0/mo.

Threshold Based Autoscaling

123 Dyno autoscales to keep your application in a configurable range of response times, adjusting as your app slows down or speeds up. Scale off of ground truth response metrics.

Highly Configurable

Scale statically, dynamically, via different metrics, via pruned URLs, and separately for upscaling and downscaling. Use the standard preset or configure to exactly what you’re stack needs. 123 Dyno gives you complete elegant control.

5 Metrics to Scale From

Choose from 5 metrics to scale your application from. 95th percentile, avg response, max response, average load, maximum load. Every app is different and 123 Dyno provides metrics to accommodate a wide variety of preferences and stack needs.

App Savings

Custom tune your autoscaling to only the number of dynos you need, scale up under load and down during quiet periods automatically. Get fine-grained control over the number of dynos you want in your bill.

Works On All Web Dynos

Just install and configure. Built off of Heroku Logplex you can run it on any Heroku web dyno using simple, secure Heroku single sign-on. Load monitoring and analytics start on install.

Load and Performance Analytics

Get path-specific insights into your application under load, which paths are performing poorly, and which are fast. More than just brute autoscaling, 123 Dyno gives you the tools to analyze and make your app more performant, saving you more money.

URL Blocklist

Remove outlier URLs that throw off scaling statistics, like socket.io requests or long-running file uploads. Save money and stop increasing your formation for bad response time data.

Free Beta Period

123 Dyno’s Beta period is completely free for early adopters and will remain so for 2 months after it releases to general availability.

Region Availability

The available application locations for this add-on are shown below, and depend on whether the application is deployed to a Common Runtime region or Private Space. Learn More

  • Common Runtime
  • Private Spaces
Region Available
United States Available
Europe Available
Region Available Installable in Space
Virginia Available
Oregon Available
Frankfurt Available
Tokyo Available
Sydney Available
Dublin Available

Plans & Pricing

    • Max Dynos 100
    • Web Dyno Autoscaling
    • Load & Performance Analytics
    • Supports Standard, Performance, Private, and Shield dynos
    • Fine Grained Configuration Controls
    • Dynamic Scaling
    • Static Scaling
    • Max, Average, M95, and Load Metrics To Scale From
    • Scale Up and Scale Down can be configured seperately
    • URL Blocklist
    • Metric and Scaling Logs
    • Minute-by-minute scaling
    • Ticket Support
    • Developer Email Support
Install 123 Dyno
heroku addons:create d123

To provision, copy the snippet into your CLI or use the install button above.

123 Dyno Documentation