Pricing & Billing

How does Opensolr Work?

Infrastructure & Plans

How Does Opensolr Work?

Infrastructure, plan types, billing, and how to get your first Opensolr Index running in under a minute.

Opensolr is a managed Apache Solr hosting platform. You get production-ready Solr indexes in the cloud, without running or maintaining any Solr infrastructure yourself. Here is how everything works — from the global infrastructure to your first query.

Global Infrastructure

Opensolr operates data centers across multiple regions worldwide, running primarily on AWS and Hetzner AG bare-metal servers. When you create an Opensolr Index, you choose the Solr version and the region closest to your users — your data stays in that region.

🇺🇸 US-East / US-West

🇨🇦 Canada

🇩🇪 EU-Central

🇫🇮 EU-East / EU-West

🇨🇳 China / Hong Kong

🇦🇺 Australia

Additional regions available on request for dedicated plans.

How Your Opensolr Index Runs

Opensolr runs on large, dedicated bare-metal servers. Each Solr Index is securely containerized — your data and processes are fully isolated from other customers. Resources are dynamically allocated based on actual usage, so performance is consistent across all plan types. The difference between plans is not speed, but how much storage, bandwidth, and support you get.

Resource	What it controls
Disk Space	How much data your index can store
Monthly Bandwidth	Outgoing search traffic from Opensolr to your application
Index Count	How many separate Solr indexes you can create under one account
Support & SLA	Response time guarantees and uptime commitments

You can upgrade or downgrade any of these resources at any time.

Plan Types

Shared Cloud

Shared Solr Cloud

Multiple customers on the same server, resources shared. Indexes are fully isolated — no security concerns. The most affordable option, ideal for normal traffic and smaller projects.

Get started free →

Resilient — Shared

Shared Resilient Cluster

Multiple dedicated servers with load balancing and replicas, but resources shared across customers. Better performance under heavy load at a lower cost than a fully dedicated cluster.

View pricing →

Dedicated

Dedicated Standalone

One server dedicated exclusively to your account. No resource sharing, no noisy neighbors. Great for predictable, stable, high-performance workloads.

View pricing →

Enterprise

Dedicated Cluster

Full cluster of dedicated servers exclusively for you. Unlimited indexes, redundancy, replication, multi-region options. Built for enterprise and mission-critical workloads.

Learn about clusters →

Billing

All Opensolr plans are pre-paid. No hidden costs, no surprise fees, no overages. What you see on the Pricing Page is exactly what you pay.

Pro-rated changesUpgrades and downgrades calculated to the day. You only pay for what you use.

Flexible customizationStart from a pre-defined package and customize disk, bandwidth, index count to your exact needs.

CancellationCancel anytime. Unused days converted to account credit. Details →

Refund policyAvailable for new accounts within the first 10 days. Details →

Getting Started

1Register for a Free Trial — no credit card required. Takes under 60 seconds.

2Go to Solr → Add New Index. Choose your Solr version and the region closest to your users.

3Your index is ready in under a minute. Upload your schema (or use a default one) via the Config Files panel.

4Start indexing data via the Solr REST API — POST /solr/YOUR_INDEX/update — or connect your CMS or Web Crawler.

Free Trial Includes

✓ 1 Opensolr Index ✓ 50 MB disk space ✓ 200 MB monthly bandwidth ✓ Full Control Panel access ✓ Config editor & Solr Admin UI ✓ No credit card required

Quick Start by CMS

DrupalUse the Opensolr Search Module for AI-powered hybrid search with facets, analytics, and autocomplete — no Search API dependency. Or use the Search API Opensolr connector for traditional integration.

WordPressUse the WP-SOLR plugin — configure your Opensolr connection details in the plugin settings.

Website / Any StackUse the Web Crawler — no code, no backend. Works with WordPress, Shopify, static HTML, anything.

Moodle / OmekaMoodle guide or Omeka-S SearchSolr module for LMS and digital archive search.

What You Get at Every Plan Level

Full Solr API access — standard Solr REST API over HTTPS

Control Panel — index management, config editor, Solr Admin UI

Security — IP access rules, HTTP authentication, SSL encryption

Backups — create, schedule, restore, and download index backups

REST APIs — automate index management, config files, security, and more

Any Solr version — from 4.x through the latest version available

Ready to try it?

Start your free trial and have your first Opensolr Index running in under a minute.

Start Free Trial What is Opensolr? → View Pricing

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Shared, Dedicated, Resilient Cluster Solr Cloud Solutions

Opensolr offers four hosting tiers, each designed for a different stage of growth. Whether you're running a side project or powering enterprise search for millions of queries, there's a plan that fits.

Shared Solr

Multiple customers share the same server. Think of it like an apartment building — everyone has their own locked unit, but you share the building's resources.

Lowest cost entry point
Indexes are fully isolated — your data is private and secure
Ideal for development, testing, and normal production traffic
In rare cases, a "noisy neighbor" (e.g., heavy bot traffic on another index) may temporarily affect performance — we monitor for this and can relocate your index if needed (a few minutes of downtime to switch)

Plug and play. Create your free account, pick your plan, create your Solr index — two clicks and you're live. No setup calls, no waiting.

Shared Resilient Cluster

Multiple dedicated servers working together, but resources are still shared across customers. Think of it as two apartment buildings connected by a bridge — more room, better infrastructure, same shared model.

Load-balanced across multiple machines with replicas
Handles heavy traffic much better than a single shared instance
Bot traffic still counts toward your bandwidth, but the performance impact is significantly lower
Great for customers who need higher throughput without the cost of a fully private cluster

Plug and play. Same instant setup as Shared — register, choose a Shared Cluster plan, create your index, and you're done. No waiting, no configuration calls.

Dedicated Standalone

One machine dedicated entirely to you. Like owning your own house — no shared walls, no noisy neighbors, just your workload.

Complete resource isolation — CPU, RAM, and disk are all yours
Stable, predictable performance with zero interference from other users
More affordable than a full cluster, far more private than shared
Perfect for production workloads that need consistent response times

Tailored to your needs. Dedicated environments are sized based on your actual usage — traffic volume, index size, query complexity. Talk to us so we can design the right system for you.

Dedicated Cluster

A full cluster of multiple dedicated machines, exclusively for you. This is the enterprise tier — your own private data center with built-in redundancy.

Multiple servers (master + replicas) all working for your workloads only
Create any number of Solr indexes inside your cluster
Built-in replication, load balancing, and failover
Scalable — add more nodes as your traffic grows
Multi-region deployment available
Ideal for mission-critical applications, high-traffic platforms, and corporate-grade search

Custom-built for you. Every Dedicated Cluster is designed around your specific workload — number of indexes, query volume, redundancy requirements, region preferences. Get in touch and we'll put together the perfect setup.

Side-by-Side Comparison

	Shared	Shared Cluster	Dedicated	Dedicated Cluster
Cost	Low	Medium	Medium–High	High
Performance	Good	High	Very High	Excellent
Isolation	Data only	Data only	Full	Full
Redundancy	—	Yes	—	Yes
Best For	Dev, testing, normal traffic	High traffic on a budget	Predictable, stable workloads	Enterprise, mission-critical

Common Questions

Can I host multiple sites inside one Dedicated Cluster?

Yes. A Dedicated Cluster is your own private environment. You can create as many Solr indexes as you need inside it — one per site, one per application, or however you want to organize your data.

Can another customer's traffic affect my performance on Shared?

It's rare, but possible. We actively monitor all shared instances and will relocate your index to a quieter server if needed (a few minutes of downtime to switch hostnames). For guaranteed isolation, choose Dedicated Standalone or Dedicated Cluster.

Is there any security concern on shared plans?

No. Every Solr index is fully isolated regardless of the hosting tier. Other customers cannot access, read, or modify your data. Shared only means system resources (CPU, RAM) are shared — not your data.

What if my servers are in a different region than the Solr cluster?

The only impact is network latency, typically around 80–130ms for cross-region connections. You can easily test this during the free trial. In most cases, performance is comparable to dedicated unless you're under extremely heavy load.

Not Sure Which Plan Fits?

Start with the Free Trial on a shared plan. You can upgrade at any time, and every paid plan includes a 10-day money-back guarantee.

Start Your Free Trial

No credit card required.

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Order & Upgrade Indexes, Disk Space, Bandwidth — Opensolr ...

Understanding Opensolr Resources & Upgrades

The Opensolr service runs on a set of resources that determine how you use and scale your search capabilities: Solr Indexes, Disk Space, Search Traffic Bandwidth, (optionally Clusters)

🚦 Core Resources

Indexes
Standalone Opensolr indexes located in various regions worldwide.
Clusters
Resilient clusters of servers that function as a unified Opensolr index, with added benefits as described here.
Disk Space
The storage used by each of your Opensolr indexes or clusters.
Bandwidth
The outgoing data traffic from Opensolr to your site or app.

⏫ When Should You Upgrade Your Plan?

You’ll typically need to upgrade your plan when:

Your Free Trial is over.
You’ve run out of any one of the above resources (disk, bandwidth, indexes, or clusters).

📈 Example: Out of Disk Space

Suppose you have 1 Opensolr index and it runs out of disk space.
Here’s how to check and upgrade, step by step:

Check your index disk space consumption:
1. Go to your Opensolr Control Panel - Index List.
2. Click your index name:
3. Check the disk space in your Opensolr Index Control Panel:
4. Click Solr Admin to get the latest disk usage:
5. Visit the Pricing Page (also available via the top navigation or the Billing section in your Index Control Panel):
6. You’ll see a set of pre-defined packages.
  However, you can always customize your package to fit your needs:
  
  Move on to the customization area, where you can select more disk space, bandwidth, indexes, clusters, or any other resource:
Need to upgrade another resource?
The process is the same—simply choose more of what you need (indexes, bandwidth, clusters, etc.).
All upgrades and downgrades are pro-rated, so you only pay for what you use. 💡

⚡️ Pro Tips

You can upgrade or downgrade at any time.
All changes are instant and flexible.
If you ever need help, Opensolr support is here for you.

Need more detail?
See our full documentation or reach out to support if you hit any snags.

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