# OpenText Core DNS Protection vs Zscaler Advanced Threat Protection: side-by-side comparison (2026)

[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). [Zscaler Advanced Threat Protection](https://cybersectools.com/tools/zscaler-advanced-threat-protection) is a commercial [network sandboxing](https://cybersectools.com/categories/network-sandboxing) solution by [Zscaler](https://cybersectools.com/companies/zscaler). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

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

### Use cases and capabilities

| | OpenText Core DNS Protection | Zscaler Advanced Threat Protection |
|---|---|---|
| C2 | Yes | – |
| Proxy | – | Yes |
| TLS | – | Yes |
| Zero Day | – | Yes |

### Core features

**OpenText Core DNS Protection**

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

**Zscaler Advanced Threat Protection**

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

## OpenText Core DNS Protection vs Zscaler Advanced Threat Protection FAQ

Common questions when comparing OpenText Core DNS Protection vs Zscaler Advanced Threat Protection for intrusion detection and prevention systems.

### What is the difference between OpenText Core DNS Protection and Zscaler Advanced Threat Protection?

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

**Zscaler Advanced Threat Protection**: Cloud-based ATP with inline threat detection, sandboxing, and TLS/SSL inspection, built by Zscaler.

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

### Who makes OpenText Core DNS Protection and Zscaler Advanced Threat Protection?

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

### Is OpenText Core DNS Protection a good alternative to Zscaler Advanced Threat Protection?

In part. OpenText Core DNS Protection and Zscaler Advanced Threat Protection are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [OpenText Core DNS Protection vs Palo Alto Networks Advanced Threat Prevention](https://cybersectools.com/compare/opentext-core-dns-protection-vs-palo-alto-networks-advanced-threat-prevention)
- [OpenText Core DNS Protection vs Trend Micro TippingPoint Threat Protection System](https://cybersectools.com/compare/opentext-core-dns-protection-vs-trend-micro-tippingpoint-threat-protection-system)
- [OpenText Core DNS Protection vs Trellix Intrusion Prevention System](https://cybersectools.com/compare/opentext-core-dns-protection-vs-trellix-intrusion-prevention-system)
- [Zscaler Advanced Threat Protection vs Palo Alto Networks Advanced Threat Prevention](https://cybersectools.com/compare/palo-alto-networks-advanced-threat-prevention-vs-zscaler-advanced-threat-protection)
- [Zscaler Advanced Threat Protection vs Trend Micro TippingPoint Threat Protection System](https://cybersectools.com/compare/trend-micro-tippingpoint-threat-protection-system-vs-zscaler-advanced-threat-protection)
- [Zscaler Advanced Threat Protection vs Trellix Intrusion Prevention System](https://cybersectools.com/compare/trellix-intrusion-prevention-system-vs-zscaler-advanced-threat-protection)

## Alternatives to each

- [See all OpenText Core DNS Protection alternatives](https://cybersectools.com/alternatives/opentext-core-dns-protection)
- [See all Zscaler Advanced Threat Protection alternatives](https://cybersectools.com/alternatives/zscaler-advanced-threat-protection)

---

Source: https://cybersectools.com/compare/opentext-core-dns-protection-vs-zscaler-advanced-threat-protection

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

More on OpenText Core DNS Protection and Zscaler Advanced Threat 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