Opensolr is managed Apache Solr hosting. You create Opensolr Indexes in the cloud and send them your data; Opensolr runs the servers, the security and the upkeep.
01 · Where your index runs
You pick the region and the Solr version
Once, when you create the index. The list in Solr › Add New Index is always the current one: Regions. Solr versions below 8 are retired on 01/01/2027.
Every index is private
Each index has its own username and password and its own IP rules: Security.
02 · What you pay for
A plan is made of four parts
Indexes, clusters, disk and traffic, plus add-ons such as backups and a larger AI allowance: What a plan is made of.
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 between your servers and the region of your index. You can easily test this during the free plan. In most cases, performance is comparable to dedicated unless you're under extremely heavy load.
An Opensolr plan is assembled from four resources. You buy more of the one you ran out of, not a bigger bundle, and the change is pro-rated to the day.
The outgoing traffic from Opensolr to your site or app. This is what a busy search page consumes.
02 · When to upgrade
Two situations: you have outgrown the free plan, or you have run out of one of the four resources above. Running out of one does not mean you need more of the others.
