# CSS for IIS vs Intrusion Shield: side-by-side comparison (2026)

[CSS for IIS](https://cybersectools.com/tools/css-for-iis) is a commercial [workload protection](https://cybersectools.com/categories/workload-protection) solution by [CalCom Software](https://cybersectools.com/companies/calcom-software). [Intrusion Shield](https://cybersectools.com/tools/intrusion-shield) is a commercial [intrusion detection and prevention systems](https://cybersectools.com/categories/idps) solution by [Intrusion](https://cybersectools.com/companies/intrusion). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CSS for IIS | Intrusion Shield |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Workload Protection | Intrusion Detection and Prevention Systems |
| Verified | No | No |
| Deployment type | On-Premises | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | CalCom Software | Intrusion |
| Headquarters | – | – |

### Use cases and capabilities

| | CSS for IIS | Intrusion Shield |
|---|---|---|
| Security Hardening | Yes | – |
| Configuration Management | Yes | – |
| Microsoft | Yes | – |
| Policy | Yes | – |
| Security Configuration | Yes | – |
| Benchmark | Yes | – |
| Windows Security | Yes | – |
| Network Protection | – | Yes |
| Threat Feed | – | Yes |
| Network Monitoring | – | Yes |
| Traffic Filtering | – | Yes |
| IP Address | – | Yes |
| NDR | – | Yes |
| Network Visibility | – | Yes |
| Cyber Threat Intelligence | – | Yes |
| VPC | – | Yes |
| Hunting | – | Yes |

### Core features

**CSS for IIS**

10 features listed. Sign in on the page to see them.

**Intrusion Shield**

9 features listed. Sign in on the page to see them.

### Integrations

**CSS for IIS**

2 integrations listed. Sign in on the page to see them.

**Intrusion Shield**

2 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [CSS for IIS](https://cybersectools.com/tools/css-for-iis) fits if you need to run it on your own servers.
- [Intrusion Shield](https://cybersectools.com/tools/intrusion-shield) fits if you need both cloud and on-premises options.

## CSS for IIS vs Intrusion Shield FAQ

Common questions when comparing CSS for IIS vs Intrusion Shield for workload protection.

### What is the difference between CSS for IIS and Intrusion Shield?

**CSS for IIS**: Automated hardening and compliance management tool for Microsoft IIS servers. Built by CalCom Software.

**Intrusion Shield**: Network threat protection platform blocking malicious IPs using reputation intelligence. Built by Intrusion.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes CSS for IIS and Intrusion Shield?

**CSS for IIS** is made by CalCom Software. **Intrusion Shield** is made by Intrusion. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CSS for IIS a good alternative to Intrusion Shield?

In part. CSS for IIS and Intrusion Shield are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CSS for IIS vs CalCom Hardening Suite (CHS)](https://cybersectools.com/compare/calcom-hardening-suite-chs-vs-css-for-iis)
- [CSS for IIS vs CimTrak CCR](https://cybersectools.com/compare/cimtrak-ccr-vs-css-for-iis)
- [CSS for IIS vs Remedio Smart Device Hardening](https://cybersectools.com/compare/css-for-iis-vs-gytpol-smart-device-hardening)
- [Intrusion Shield vs CalCom Hardening Suite (CHS)](https://cybersectools.com/compare/calcom-hardening-suite-chs-vs-intrusion-shield)
- [Intrusion Shield vs CimTrak CCR](https://cybersectools.com/compare/cimtrak-ccr-vs-intrusion-shield)
- [Intrusion Shield vs Remedio Smart Device Hardening](https://cybersectools.com/compare/gytpol-smart-device-hardening-vs-intrusion-shield)

## Alternatives to each

- [See all CSS for IIS alternatives](https://cybersectools.com/alternatives/css-for-iis)
- [See all Intrusion Shield alternatives](https://cybersectools.com/alternatives/intrusion-shield)

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Source: https://cybersectools.com/compare/css-for-iis-vs-intrusion-shield

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/css-for-iis.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on CSS for IIS and Intrusion Shield: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md