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Performance & Scaling

Load Balancer Setup — Spread Traffic, Stay Online

Traffic spread across servers with health checks and zero-downtime deploys. From $199 · 1-day delivery.

Common signs: one server doing everything, downtime during deploys and traffic spikes. Usual causes: single instance and no health checks. What we do: set up a load balancer with health checks, SSL and session handling. What you get: more capacity and fewer outages.

Our load balancer setup spreads your app's traffic across two or more servers, so one busy or failed server doesn't take the whole app down. A Codersarts engineer sets up the load balancer, health checks, SSL and session handling, and makes deploys happen without downtime. Fixed price from $199 with 1-day delivery.




Load Balancer Setup at a Glance


Item

Details

Starting price

$199 for two servers

Delivery

1 day

Options

Nginx, HAProxy, AWS ALB, Hetzner Load Balancer, DigitalOcean, Google Cloud

Includes

Health checks, SSL, session handling and logging

Deploys

Rolling or blue-green, without downtime

What you get

More capacity and resilience to single-server failures

Revisions

One revision round included



What Is a Load Balancer?


A load balancer sits in front of your app servers and spreads incoming requests between them. It checks each server's health and stops sending traffic to any that fail. That gives you more capacity, keeps the app online when one server has a problem, and lets you update servers one at a time without downtime.


Signs You Need a Load Balancer


  • Your whole app runs on one server

  • The app goes down during every deploy

  • CPU hits 100% during busy periods

  • You want to add a second server but don't know how to split traffic

  • One server failure would take the business offline



Why Single Servers Become a Problem


No redundancy

If the only server fails, everything fails.


Limited capacity

One server can only handle so many requests.


Risky deploys

Restarting the only server means downtime.


Sessions on one machine

Logged-in sessions stored locally block adding servers.



Quick Checks You Can Try First


  1. Make sure the app doesn't store uploads or sessions on the local disk.

  2. Check that your app reads configuration from environment variables.

  3. Add a simple health check endpoint that returns OK.

  4. Confirm the database can accept connections from more than one server.


If the problem remains, our engineers take it from there.



How We Set Up Your Load Balancer


  1. Review. We check the app is ready to run on more than one server.

  2. Prepare servers. We set up identical app servers.

  3. Configure. We set up the load balancer, SSL and routing.

  4. Health checks. We add checks that remove failed servers automatically.

  5. Sessions. We move sessions and uploads to shared storage if needed.

  6. Deploys. We set up rolling deploys with no downtime.



What You Get


  • A working load balancer with SSL

  • Health checks and automatic failover between servers

  • Session and file handling that works across servers

  • Zero-downtime deploy steps

  • A diagram and notes of the setup


Example result (illustrative)

A booking app ran on one server and went down during every deploy. We added a Hetzner Load Balancer with two app servers, moved sessions to Redis and uploads to object storage, and set up rolling deploys. Deploys no longer cause downtime, and one server can fail without customers noticing.



What Is Included and Not Included


Included

Not included

Load balancer for up to two app servers

Large multi-region setups

SSL, health checks and logging

Server and cloud costs

Session and upload changes for multi-server use

Rewriting the application

Zero-downtime deploy setup

Database clustering (available separately)



Pricing for Load Balancer Setup


Package

Best for

Starting at

Delivery

Readiness check

Is your app ready for several servers?

$29

24 hours

Standard setup

Load balancer with two servers

$199

1 day

High availability

Several servers, autoscaling and zero-downtime pipeline

$599

3 days


You get a fixed quote after we review your setup. You approve the scope before any payment.




Who This Is For


  • Apps outgrowing a single server

  • Teams that want deploys without downtime

  • Startups preparing for a launch or larger customers

  • Platforms serving several colleges or clients



What We Need From You


  • Server or cloud account access

  • How the app is deployed today

  • Where sessions and uploads are stored

  • Your domain and DNS access


Code and data privacy

We sign an NDA on request, work with the least access needed, and never keep copies of your data after delivery. You own all code, configuration and notes.



Key Terms Explained


  • Load balancer: a service that spreads traffic across servers

  • Health check: a regular test that confirms a server is working

  • Sticky sessions: sending a user to the same server each time

  • Rolling deploy: updating servers one at a time without downtime



Common Mistakes We Avoid


  • Adding servers while sessions are still stored locally

  • Skipping health checks, so traffic goes to broken servers

  • Terminating SSL in the wrong place and breaking redirects

  • Forgetting to make the database reachable from every server



Need More Than One Task?


Need a full high-availability design? See Scalability Engineering and WAF & DDoS Protection. Or use Prepaid Developer Hours to cover several tasks from one prepaid balance.


Related Tasks




Frequently Asked Questions


Do I need a load balancer?

If downtime is costly, your app runs on one server, or you need more capacity, yes.

Your cloud's managed load balancer is usually simplest. Nginx or HAProxy suit self-managed servers.

Not if sessions are shared. We move them to Redis or a database when needed.

Partly. For bots and attacks, add a WAF such as Cloudflare in front.



Stay Online When One Server Isn't Enough


Share how your app is hosted, and a Codersarts engineer will spread the load and remove your single point of failure.


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