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Shared Hosting

/shair-d hoh-sting/noun

Filed underInfrastructure

In brief · quick answer

Shared hosting is the budget tier of web hosting where multiple websites share a single server's resources. It is cheap, but your site's performance depends on your server neighbors.

§ 1 Definition

Shared hosting places dozens, sometimes hundreds, of websites on a single physical server. Each tenant gets a slice of CPU, RAM, and disk space, but no single site has dedicated resources. This makes shared hosting the most affordable entry point for small sites, personal projects, and low-traffic businesses. The tradeoff is real: if one site on the server gets a traffic spike or a security breach, every other site on that server feels the impact. You share the server, you share the risks.

§ 2 How Shared Hosting Works

A hosting provider installs a control panel (cPanel, Plesk) on a powerful server, then partitions the server into accounts. Each account has its own directory, database, and email configuration. A web server (usually Apache or Nginx) routes incoming requests to the correct directory based on the domain name. All accounts share the same operating system, kernel, and physical hardware.

§ 3 When Shared Hosting Makes Sense

Shared hosting works well for personal blogs, small business brochure sites, and anyone testing an idea who wants minimal financial commitment. It also works for static sites that don't need server-side processing. If your site gets under 10,000 monthly visitors and doesn't handle sensitive customer data, shared hosting can be perfectly adequate.

§ 4 When to Move Away

When your site grows, shared hosting becomes a bottleneck. Slow load times during peak hours, resource limit errors, and security risks from neighboring sites are signs it's time to upgrade to VPS or Cloud Hosting. Ecommerce sites, membership portals, and any site processing payments should skip shared hosting entirely for PCI compliance and performance reasons.

§ 5 Note

The phrase 'unlimited' in shared hosting plans is marketing. Read the fine print on CPU and memory limits. Every plan has caps; they just don't want to tell you where.

§ 6 Common questions

Q. What happens if another site on my shared server gets hacked?: A. Your site could get infected too. Poor isolation between accounts means cross-site contamination is a real risk. This is the biggest security downside of shared hosting.
Q. Can I install custom software on shared hosting?: A. Generally no. You lack root access and can't modify the server configuration. You are limited to what the provider's control panel supports.

Key takeaways

Shared hosting is the cheapest option but your site shares CPU, RAM, and risk with other sites.
Performance is unpredictable because you can't control what your server neighbors do.
Good for small, low-traffic sites. Bad for ecommerce, high-traffic, or sensitive data.
When you outgrow shared hosting, move to VPS or cloud hosting.

How Atomic Glue helps

We help clients identify when their site has outgrown shared hosting and migrate them to something faster and more secure. Contact us to discuss your upgrade path.

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# Shared Hosting

Shared hosting is the budget tier of web hosting where multiple websites share a single server's resources. It is cheap, but your site's performance depends on your server neighbors.

Category: Infrastructure

Author: Atomic Glue Editorial Team

## Definition

## How Shared Hosting Works

## When Shared Hosting Makes Sense

## When to Move Away

When your site grows, shared hosting becomes a bottleneck. Slow load times during peak hours, resource limit errors, and security risks from neighboring sites are signs it's time to upgrade to [VPS](/glossary/vps) or [Cloud Hosting](/glossary/cloud-hosting). Ecommerce sites, membership portals, and any site processing payments should skip shared hosting entirely for PCI compliance and performance reasons.

## Note

The phrase 'unlimited' in shared hosting plans is marketing. Read the fine print on CPU and memory limits. Every plan has caps; they just don't want to tell you where.

## Common questions

Q: What happens if another site on my shared server gets hacked?

A: Your site could get infected too. Poor isolation between accounts means cross-site contamination is a real risk. This is the biggest security downside of shared hosting.

Q: Can I install custom software on shared hosting?

A: Generally no. You lack root access and can't modify the server configuration. You are limited to what the provider's control panel supports.

## Key takeaways

Shared hosting is the cheapest option but your site shares CPU, RAM, and risk with other sites.
Performance is unpredictable because you can't control what your server neighbors do.
Good for small, low-traffic sites. Bad for ecommerce, high-traffic, or sensitive data.
When you outgrow shared hosting, move to VPS or cloud hosting.

## Related entries

Last updated July 2026. Permalink: atomicglue.co/glossary/shared-hosting