# Intrusion Shield vs OpenText Core DNS Protection: side-by-side comparison (2026)

[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). [OpenText Core DNS Protection](https://cybersectools.com/tools/opentext-core-dns-protection) is a commercial [intrusion detection and prevention systems](https://cybersectools.com/categories/idps) solution by [OpenText Cybersecurity](https://cybersectools.com/companies/opentext-cybersecurity). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Intrusion Shield | OpenText Core DNS Protection |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Intrusion Detection and Prevention Systems | Intrusion Detection and Prevention Systems |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Intrusion | OpenText Cybersecurity |
| Headquarters | – | – |

### Use cases and capabilities

| | Intrusion Shield | OpenText Core DNS Protection |
|---|---|---|
| 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 | – |
| C2 | – | Yes |

### Core features

**Intrusion Shield**

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

**OpenText Core DNS Protection**

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

### Integrations

**Intrusion Shield**

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

**OpenText Core DNS Protection**

No integrations listed.

## Which one fits you

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

- [Intrusion Shield](https://cybersectools.com/tools/intrusion-shield) fits if you need both cloud and on-premises options.
- [OpenText Core DNS Protection](https://cybersectools.com/tools/opentext-core-dns-protection) fits if you want a cloud product.

## Intrusion Shield vs OpenText Core DNS Protection FAQ

Common questions when comparing Intrusion Shield vs OpenText Core DNS Protection for intrusion detection and prevention systems.

### What is the difference between Intrusion Shield and OpenText Core DNS Protection?

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

**OpenText Core DNS Protection**: Cloud-native DNS filtering solution that blocks malicious domains and threats, built by OpenText Cybersecurity.

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

### Who makes Intrusion Shield and OpenText Core DNS Protection?

**Intrusion Shield** is made by Intrusion. **OpenText Core DNS Protection** is made by OpenText Cybersecurity. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Intrusion Shield a good alternative to OpenText Core DNS Protection?

Often, yes. Intrusion Shield and OpenText Core DNS Protection are both Intrusion Detection and Prevention Systems products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Intrusion Shield vs Centripetal CleanINTERNET®](https://cybersectools.com/compare/centripetal-cleaninternetr-vs-intrusion-shield)
- [Intrusion Shield vs DYNANIC](https://cybersectools.com/compare/dynanic-vs-intrusion-shield)
- [Intrusion Shield vs threatER](https://cybersectools.com/compare/intrusion-shield-vs-threater)
- [OpenText Core DNS Protection vs Centripetal CleanINTERNET®](https://cybersectools.com/compare/centripetal-cleaninternetr-vs-opentext-core-dns-protection)
- [OpenText Core DNS Protection vs DYNANIC](https://cybersectools.com/compare/dynanic-vs-opentext-core-dns-protection)
- [OpenText Core DNS Protection vs threatER](https://cybersectools.com/compare/opentext-core-dns-protection-vs-threater)

## Alternatives to each

- [See all Intrusion Shield alternatives](https://cybersectools.com/alternatives/intrusion-shield)
- [See all OpenText Core DNS Protection alternatives](https://cybersectools.com/alternatives/opentext-core-dns-protection)

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Source: https://cybersectools.com/compare/intrusion-shield-vs-opentext-core-dns-protection

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

More on Intrusion Shield and OpenText Core DNS Protection: 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