# Fastly DDoS Protection vs NETSCOUT Arbor Sightline Mobile: side-by-side comparison (2026)

[Fastly DDoS Protection](https://cybersectools.com/tools/fastly-ddos-protection) is a commercial [DDoS mitigation](https://cybersectools.com/categories/ddos-mitigation) solution by [Fastly](https://cybersectools.com/companies/fastly). [NETSCOUT Arbor Sightline Mobile](https://cybersectools.com/tools/netscout-arbor-sightline-mobile) is a commercial [DDoS mitigation](https://cybersectools.com/categories/ddos-mitigation) solution by [NETSCOUT](https://cybersectools.com/companies/netscout). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Fastly DDoS Protection | NETSCOUT Arbor Sightline Mobile |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | DDoS Mitigation | DDoS Mitigation |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Fastly | NETSCOUT |
| Headquarters | – | – |

### Use cases and capabilities

| | Fastly DDoS Protection | NETSCOUT Arbor Sightline Mobile |
|---|---|---|
| DDoS | Yes | – |
| 5G | – | Yes |
| Botnet | – | Yes |

### Core features

**Fastly DDoS Protection**

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

**NETSCOUT Arbor Sightline Mobile**

10 features 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.

- [Fastly DDoS Protection](https://cybersectools.com/tools/fastly-ddos-protection) fits if you want a cloud product and you are a small business.
- [NETSCOUT Arbor Sightline Mobile](https://cybersectools.com/tools/netscout-arbor-sightline-mobile) fits if you need to run it on your own servers.

## Fastly DDoS Protection vs NETSCOUT Arbor Sightline Mobile FAQ

Common questions when comparing Fastly DDoS Protection vs NETSCOUT Arbor Sightline Mobile for DDoS mitigation.

### What is the difference between Fastly DDoS Protection and NETSCOUT Arbor Sightline Mobile?

**Fastly DDoS Protection**: Cloud-based DDoS protection for apps and APIs with automatic mitigation. Built by Fastly.

**NETSCOUT Arbor Sightline Mobile**: DDoS threat detection & traffic anomaly monitoring for 4G/5G mobile networks. Built by NETSCOUT.

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

### Who makes Fastly DDoS Protection and NETSCOUT Arbor Sightline Mobile?

**Fastly DDoS Protection** is made by Fastly. **NETSCOUT Arbor Sightline Mobile** is made by NETSCOUT. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Fastly DDoS Protection a good alternative to NETSCOUT Arbor Sightline Mobile?

Often, yes. Fastly DDoS Protection and NETSCOUT Arbor Sightline Mobile are both DDoS Mitigation products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Fastly DDoS Protection vs Allot 5G NetProtect](https://cybersectools.com/compare/allot-5g-netprotect-vs-fastly-ddos-protection)
- [Fastly DDoS Protection vs Blindspot Intelligent Network & Infra Protection](https://cybersectools.com/compare/blindspot-intelligent-network-and-infra-protection-vs-fastly-ddos-protection)
- [Fastly DDoS Protection vs AWS Shield](https://cybersectools.com/compare/aws-shield-vs-fastly-ddos-protection)
- [NETSCOUT Arbor Sightline Mobile vs Allot 5G NetProtect](https://cybersectools.com/compare/allot-5g-netprotect-vs-netscout-arbor-sightline-mobile)
- [NETSCOUT Arbor Sightline Mobile vs Blindspot Intelligent Network & Infra Protection](https://cybersectools.com/compare/blindspot-intelligent-network-and-infra-protection-vs-netscout-arbor-sightline-mobile)
- [NETSCOUT Arbor Sightline Mobile vs AWS Shield](https://cybersectools.com/compare/aws-shield-vs-netscout-arbor-sightline-mobile)

## Alternatives to each

- [See all Fastly DDoS Protection alternatives](https://cybersectools.com/alternatives/fastly-ddos-protection)
- [See all NETSCOUT Arbor Sightline Mobile alternatives](https://cybersectools.com/alternatives/netscout-arbor-sightline-mobile)

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Source: https://cybersectools.com/compare/fastly-ddos-protection-vs-netscout-arbor-sightline-mobile

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

More on Fastly DDoS Protection and NETSCOUT Arbor Sightline Mobile: 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