Intruder: Pricing, Features & Alternatives

Continuous vulnerability management platform for external infrastructure, cloud environments, and web applications.

Overall Score47/100

3.6Editor Rating

Market Signal 28

#3 of 6 in Vulnerability Monitoring by Overall Score

What Is Intruder?

Intruder scans internet-facing systems and cloud environments for vulnerabilities, prioritizing findings so teams can focus on issues that are exposed and actionable. It supports automated network scanning, attack-surface monitoring, cloud integrations, web application checks, and continuous monitoring, with reporting and integrations designed to route findings into engineering and security workflows.

Best for: Small and midsize security teams that need recurring vulnerability scanning and prioritization across external infrastructure and cloud assets.

Intruder distinguishes background network-discovery checks from scheduled vulnerability scans: the former keeps port and service inventories current while the latter assesses weaknesses. Network-check frequency differs by plan, and daily scheduled vulnerability scans require Enterprise or Vanguard. Container scans can detect a new image that matches an existing tag pattern and retain the previous version’s scan history.

3.6

out of 5

Editor Rating

Calculated from facts we verified on Intruder's own website, using published thresholds. Nobody can pay to change it. Together with Market Signal it makes the Overall Score of 47 that orders our lists.

Pricing transparency2.0
Entry cost5.0
Free access5.0
Platforms & API2.5
Support4.0
Integrations2.5
Security & compliance5.0

Dimensions without verified data count as a neutral 2.5. Facts checked October 12, 2026. How the rating works

Modest

Market Signal

Real data

Computed from Ahrefs + Semrush data about Intruder's own website. Not an assessment of the product itself. How this works →

Market Strength

Where it stands today

Momentum

44 Declining ↓↓

Where it’s heading

Data Confidence

Medium

How much to trust it

Traffic Strength
23
Search Visibility
27
Authority
21
Brand & Market Presence
23

Tick mark = category average.

Compared with 24 tracked Website Security tools. Data through September 2026, pulled October 12, 2026.

Who Is It Best For?

IT teams scheduling recurring external vulnerability assessments
Security departments maintaining inventories of network ports
Container teams checking newly published images for vulnerabilities

Who Should Avoid It?

Site owners needing a content management system, not security scanning
Organizations requiring daily recurring vulnerability scans on non-enterprise tiers

Use Cases

Scan internet-facing hosts for exploitable issues
Schedule weekly vulnerability assessments
Detect newly exposed network services
Scan changing container-image tags

Intruder Features

Continuous vulnerability scanning
Attack surface monitoring
Cloud vulnerability checks
Web application scanning
Threat prioritization
Compliance reporting

Intruder Pricing

Plan	Monthly	Annual (mo)
Enterprise	Custom	Custom

Pricing shown reflects list prices as of our last check and may have changed. Confirm current pricing on Intruder's website before purchasing.

Intruder Integrations

AWS, Azure, Google Cloud, Jira, Slack, Microsoft Teams

Customer Support

Live chat, Help center, Email

Intruder at a Glance

Founded: 2015
Built for: Solo, Small Business, Enterprise
Platforms: Web, API
Languages: English

Intruder Alternatives

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Cloudflare

Overall Score82/100

4.3Editor Rating

Market Signal 83

From $20/mo (annual billing)Free plan

Why choose it: Website owners and developers who want DNS, caching, SSL and attack protection in front of their sites, with room to add edge code.

Strengths

• Free plan includes DNS, CDN, Universal SSL and unmetered DDoS protection.
• Workers runs serverless code with a free allowance of 100,000 requests a day.

Limitations

• Free plan firewall is limited to the Free Managed Ruleset; OWASP rules start at Pro.
• Bot Fight Mode can't be skipped with WAF custom rules and may challenge legitimate API traffic.

Read Review Visit Site

Tenable

Overall Score65/100

3.7Editor Rating

Market Signal 63

From $399.17 per license/mo (annual billing)Free trial

Why choose it: Enterprise security and vulnerability teams that need asset exposure data across traditional infrastructure, cloud, identity, and operational technology.

Read Review Visit Site

ImmuniWeb

Overall Score44/100

3.6Editor Rating

Market Signal 23

See pricingFree plan

Why choose it: Security teams that need coordinated testing and monitoring across web applications, APIs, mobile apps, and exposed digital assets.

Read Review Visit Site

Detectify

Overall Score43/100

3.5Editor Rating

Market Signal 25

See pricingFree plan

Why choose it: Application-security and security teams that need continuous testing of internet-facing web assets and externally exposed attack surfaces.

Read Review Visit Site

Frequently Asked Questions

Does Intruder have a free trial or free plan?⌄

Yes, Intruder offers both a free plan and a free trial of its paid tiers.

How much does Intruder cost?⌄

Intruder doesn't publish a starting price. Check its pricing page for current plans.

What are the best alternatives to Intruder?⌄

Commonly considered alternatives include Cloudflare, Tenable, ImmuniWeb and Detectify. The Alternatives section on this page shows what each one is best at and its starting price.

Last updated: October 12, 2026Details checked: October 7, 2026Pricing checked: September 28, 2026