Billing

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's how everything works, from the infrastructure to billing to your first index.

Global Infrastructure

Opensolr operates data centers across multiple regions worldwide:

• US-East / US-West
• Canada
• EU-East / EU-Central / EU-West
• Mainland China / Hong Kong
• Australia
• Additional regions available on request

Our infrastructure runs primarily on AWS and Hetzner AG bare-metal servers, with the flexibility to accommodate other providers for dedicated plans.

When you create an Opensolr Index, you choose the Solr version and the region closest to your users. Your data stays in that region.

How Your Solr Index Runs

Opensolr runs on large, dedicated bare-metal servers. Each Solr Index is securely containerized, meaning your data and processes are fully isolated from other customers.

Resources are dynamically allocated and scaled globally based on your index's actual usage. This means performance is consistent across all plan types — the difference between plans is not speed, but how much storage, bandwidth, and support you get.

Your plan limits are defined by:

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

Plan Types

Opensolr offers four types of hosting, depending on your needs:

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 for free

Shared Resilient Cluster

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

Dedicated Standalone

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

Dedicated Cluster

A full cluster of multiple dedicated servers, exclusively for you. Create any number of indexes inside this environment. Includes redundancy, replication, scalability, and multi-region options. Built for enterprise and mission-critical workloads. Learn more about Dedicated and Resilient Clusters

Web Crawler — Site Search Without Code

Not every project has its own backend or CMS. The Opensolr Web Crawler lets you point Opensolr at any website and get a fully searchable index — automatically, with no code and no plugins.

• Crawl any site — enter your domain and Opensolr discovers, fetches, and indexes every page
• JavaScript rendering — built-in headless Chromium handles SPAs and JS-heavy pages
• Rich content extraction — pulls text from HTML, PDF, DOCX, XLSX, and ODT files
• AI enrichment — automatic price detection, sentiment analysis, and language identification per page
• Embeddable search UI — two lines of HTML to drop a search bar into any website
• Search analytics — no-results tracking, click analytics & CTR, and query elevation
• Full Solr API — query your crawled index with faceting, highlighting, spellcheck, and hybrid AI search

Get started with the Web Crawler or read the full overview. \n---\n\n## Billing

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

Key billing facts:

• Pro-rated changes — upgrades and downgrades are calculated to the day. You only pay for what you use.
• Flexible customization — start from a pre-defined package on the Pricing Page and customize disk space, bandwidth, index count, and other resources to your exact needs.
• Payment management — update your payment method, download invoices, and manage your subscription through the Billing Admin Area and Stripe Customer Portal.
• Cancellation — cancel anytime. Unused days are converted to account credit for future use. More details.
• Refund policy — available for new accounts within the first 10 days.

Getting Started

Getting your first Opensolr Index running takes just a few minutes:

1. Register for a Free Trial — no credit card required
2. Log in and choose your preferred Solr version and region
3. Create your Opensolr Index — it's ready in under a minute
4. Upload your schema (or use a default one) and start indexing data

Free Trial Includes

• 1 Opensolr Index
• 50 MB disk space
• 200 MB monthly bandwidth
• Full access to the Control Panel, config editor, and Solr Admin UI
• No credit card required

Quick Start with a CMS

Drupal — Install the official Search API Opensolr module. It automates account creation, server connection, and Solr configuration file management. Setup guide.

WordPress — Use the WP-SOLR plugin. Configure your Opensolr connection details in the plugin settings.

Moodle — Follow the Moodle integration guide to connect your LMS to Opensolr.

Omeka — Use the Omeka-S SearchSolr module.

What You Get at Every Plan Level

Regardless of which plan you choose, every Opensolr account includes:

• 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, and restore index backups
• REST APIs — automate index management, config files, security, and more
• Any Solr version — from 4.x through the latest version available
• Global region selection — host your data where your users are

Higher-tier plans add more disk, bandwidth, indexes, analytics, dedicated resources, resilient clustering, and priority support.

Documentation and Support

• FAQ & Knowledge Base — searchable answers to common questions
• Server Management Docs — full guide to the Server Management panel
• Turbo Indexer Docs — parallel indexing for Drupal
• REST API Reference — automate everything
• Contact Support — we're here to help

Ready to try it? Start your free trial and have your first Opensolr Index running in minutes.

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

Shared Resilient Cluster

Dedicated Standalone

Dedicated Cluster

Side-by-Side Comparison

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?

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:

1. 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:
      

2. 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.

Try Opensolr Free — No Credit Card Needed

Opensolr offers a Free Trial membership that gives you hands-on access to the full platform. No payment information, no time pressure, no surprises. You sign up, you get a working Solr index, and you start building.

How It Works

Getting started takes about 30 seconds:

What's Included

Your Free Trial account comes with everything you need to evaluate the platform:

Who Is This For?

The Free Trial is built for anyone who wants to evaluate Opensolr before committing:

• Developers prototyping a new application with real search capabilities
• Teams evaluating managed Solr as an alternative to self-hosting
• Students and researchers who need a reliable search backend for their projects
• Anyone curious about what Opensolr can do — with zero financial risk

20 Days Risk-Free — Guaranteed

Here's something most people don't realize: even after your Free Trial, every paid Opensolr plan comes with a 10-day money-back guarantee. That means you get a full 20 days to try Opensolr with absolutely no risk.

Bottom line: You have 20 full days to decide if Opensolr is right for you, without spending a cent you can't get back.

Ready to Get Started?

What Is a Resilient Cluster?

A Resilient Cluster is a high-availability Solr setup where your data lives on multiple dedicated servers simultaneously. If one server goes down, the others keep serving your queries without interruption. Your users never notice a thing.

The architecture is straightforward: one master handles all writes, and multiple replicas continuously sync from it and serve read queries. A load balancer sits in front and distributes traffic. If the master goes down, a replica takes over automatically.

How Is This Different From a Standalone Index?

Think of it this way: a standalone index is a single road to your data. A resilient cluster is multiple highways — if one is blocked, traffic flows through the others without anyone noticing.

What Comes With a Resilient Cluster?

How Does Billing Work?

The Resilient Cluster is priced as a single monthly fee that covers the entire cluster — master, replicas, load balancer, replication, monitoring, and support. You don't pay per server or per query.

Resilient Cluster plans start at €25/month for plug-and-play shared clusters, and go up to fully dedicated enterprise environments. See the full breakdown on the Enterprise Solr Cloud page or the Pricing page.

What Happens During a Server Failure?

Here's exactly what happens if one of the servers in your cluster goes down:

1. A server goes down (hardware failure, network issue, maintenance)
2. The watchdog detects the failure within seconds
3. Traffic is rerouted to the remaining healthy nodes
4. Your users continue searching without interruption
5. The failed server is automatically recovered and re-synced

Your search never goes offline. That's the entire point.

Who Needs a Resilient Cluster?

Not everyone does — and that's fine. Here's a simple way to decide:

Ready to Upgrade?

If you keep getting redirected to the Login page, or you are having troubles with placing a new order, after trying to login multiple times, please try to clear the opensolr cookies, or use a different browser.

Common Login Issues and How to Fix Them

If you are experiencing login problems on Opensolr, here are the most common causes and solutions:

Clear Your Browser Cookies

The most frequent cause of login loops is stale or conflicting cookies. Open your browser settings, search for opensolr.com in your stored cookies, and remove all entries. Then close and reopen the browser before trying again. The screenshots above show exactly how to do this in Chrome.

Try a Different Browser or Incognito Mode

If clearing cookies does not help, try logging in using a different browser (Firefox, Chrome, Safari, or Edge) or open an incognito/private browsing window. This rules out any browser extensions or cached data interfering with the login process.

Check Your Email Address

Make sure you are using the exact email address you registered with. Opensolr accounts are tied to a specific email. If you are unsure which email you used, check your inbox for the original Opensolr registration confirmation email.

Reset Your Password

If you have forgotten your password, use the password reset link on the login page. You will receive an email with instructions to set a new password. If the reset email does not arrive within a few minutes, check your spam or junk folder.

Trouble Placing a New Opensolr Index Order

If your order fails to go through after logging in successfully, consider the following:

Payment Method

Opensolr accepts major credit cards via Stripe and also supports PayPal. If one payment method is not working, try the alternative. Make sure your card is enabled for international online transactions if you are outside the United States.

Browser Compatibility

For the best experience, use a modern, up-to-date browser. Outdated browsers may have issues with the secure checkout process. Disable any ad blockers or privacy extensions temporarily, as they can sometimes interfere with the payment form.

Still Having Issues?

If none of the above steps resolve your problem, please contact our support team with a description of the issue, including which browser you are using and any error messages you see. We typically respond within a few hours.

Opensolr Account Upgrades, Downgrades, and Billing

Overview

When you upgrade or downgrade your Opensolr account, all changes are pro-rated, regardless of your billing period.
This means you only pay (or get credited) for the calculated difference based on the unused days from your current plan.

How to Upgrade or Downgrade

1. Log in to your Opensolr account.
2. Go to the Pricing Page.
3. From the customization dropdowns, choose your new preferred resources (indexes, disk size, bandwidth, etc.).
4. Confirm your selection.

Your upgrade or downgrade will take effect within 5–10 minutes.
No additional actions are needed after the change is submitted.

Pro-Rated Billing

All upgrades and downgrades are automatically pro-rated.
You are charged or credited only for the remaining days of your existing plan that have not been used.

This includes cases where a recurring payment was rejected and you decide to place a new order instead of simply updating your billing information.
If that happens, please refer to updating your billing information.

Refund Policy

Refunds are available only for new accounts, and only within the first 10 days of using a paid Opensolr service.

© Opensolr SRL

Download Invoices

In order to download your Opensolr Invoices, simply have to Log in to your Opensolr Account, and use the Top Menu, to click on Billing -> Invoices Dashboard.

Please note that you will have to do this from the main account, and not from a team member's account.

Also, the Agreement between you and Opensolr SRL, is the one you agreed to, when you signed up for your new Opensolr account.

Opensolr Hosted Solr Instances

Opensolr offers these major types of hosted Solr instances:

📞 Please contact us to learn more.

Dedicated Resilient Cluster

• High Availability via Load Balancing
• Read-Write Separation – Learn More

Multi-Region Failover Resilient Cluster

Get the full power of our Dedicated Resilient Cluster, with Multi-Region Failover.

Standalone Shared Solr Cloud

• Shared Solr Cloud lets you get started instantly with your Solr index.
• Register for a free trial account and get started within minutes.
• Share a dedicated server’s resources with other users to optimize costs.
• Ideal for small applications or websites that use Solr.

Simple Dedicated Solr Cloud

Get the full features of the Standalone Shared Solr Cloud, without sharing your resources.

Opensolr Web Crawler

• Site Search Without Code — point Opensolr at any website and get a fully searchable index, automatically
• JS Rendering — built-in headless Chromium for JavaScript-heavy pages and SPAs
• Content Extraction — indexes HTML, PDF, DOCX, XLSX, and ODT
• AI Enrichment — price detection, sentiment analysis, language identification
• Embeddable Search UI — two lines of HTML to add search to any site
• Search Analytics — no-results tracking, click analytics, and query elevation

Get Started \n---\n\n## Custom Solr Services

• Search implementation for PHP / JavaScript backends
• Search configuration and optimization consultancy

Update Your Payment Method

Updating your payment method is a two-step process:

Step 1 — Update your Billing Profile

1. Log in to your Opensolr account
2. Go to the Billing Admin Area
3. Update your billing information (name, address, company details)

Important: You must do this from the main account owner, not from a team member's account.

Step 2 — Manage Payment Methods in Stripe

Once your billing profile is updated, head to the Stripe Customer Portal to:

• Add or replace a credit/debit card
• Set a new default payment method
• Remove old payment methods

The Stripe Customer Portal is a secure, PCI-compliant environment managed directly by Stripe — your card details never touch our servers.

Download Invoices & Receipts

Change Your Email Address

Your Account & Agreement

Quick Reference

With the Opensolr Simple Dedicated Plan you get to use the same great Solr Shared Cloud features in your own dedicated environment.

Click here to order now.

How to Cancel Your Opensolr Membership

You can cancel your Opensolr membership at any time 🕒.

What Happens When You Cancel

• Remaining unused days = 💳 credit on your Opensolr account.
• Use credit for future upgrades 🚀.
• All purchases are final and non-refundable 🔒.
• Exception: New customers only (no previous orders) within first 10 days 📆.

How to Cancel

1. 🔐 Log in to your Opensolr Control Panel.
2. 💼 Go to Billing from the top menu.
3. ❌ Click Cancel Membership.

That’s it! Your credits (if any) will be applied automatically.