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Intruder Alternatives: 11 Options Compared, Including Free (2026)

Explore 11 alternatives to Intruder, vetted by our editors with real user reviews, pricing, and feature comparisons.

A side-by-side look at 11 free Intruder alternatives

Quick answer

For a quick answer, the leading Intruder alternatives are SiteLock, Sysdig Secure and GoDaddy Website Security. SiteLock leads the list with a 4.45★ rating from real users. Compare all 11 on rating and pricing below.

There's no single best tool for everyone, so if Intruder falls short on cost, features, or ease of use, look here. These 11 website security software free alternatives lead the field, ranked by SpotScore (a blend of real-user satisfaction and market presence), ratings, and pricing. Compare them quickly in the table, then read each profile.

ProductSpotScoreRatingPricingBest for
SiteLockSecure your website with the power of SiteLock.—★★★★☆ 4.45(1077)FreeFree Trial · Subscription · Quotation Basedteams of all sizes
Sysdig SecureProtect your cloud and containers with confidence.—★★★★★ 4.8(55)FreeFree Trial · Quotation Basedteams of all sizes
GoDaddy Website SecuritySecure your website with GoDaddy's protection.—★★★★☆ 4.2FreeFree Trial · Subscriptionteams of all sizes
PleskEmpower your web presence with Plesk.—★★★★★ 4.5(268)Freefrom $9.90/moteams of all sizes
LaceworkSecure your cloud, innovate with confidence.—★★★★☆ 4.43(337)FreeFree Trial · Quotation Basedteams of all sizes
Check Point Endpoint SecurityComprehensive Protection for Endpoints—Not yet ratedFreeFree Trial · Quotation Basedteams of all sizes
ALTCHASecure your online content with ALTCHA.—Not yet ratedFreeFree Trial · Subscription · Open-Sourceteams of all sizes
Modshield SBStay one step ahead of cyber threats.—Not yet ratedFreeFree Trial · Quotation Basedteams of all sizes
CookieChimpEfficiently manage website cookies with cutting-edge AI technology.—Not yet ratedFreeFreemium · Subscriptionteams of all sizes
NetFUNNELSafeguard your website and customer experience with ease.—★★★★★ 4.67(15)FreeFree Trial · Quotation Based · Subscriptionteams of all sizes
Campaign CleanerMaximize email delivery success with spam-proof communication.—Not yet ratedFreeFreemium · Quotation Based · Subscriptionteams of all sizes
SiteLock - Website Security Software

SiteLock

Secure your website with the power of SiteLock.

Best for: SMB teams · Mid-market

Start Free Trial

Add to compare

What is SiteLock?

SiteLock offers top-notch cybersecurity solutions for businesses of all sizes. Our cutting-edge technology is designed to keep your website safe and secure, with advanced vulnerability detection and automatic malware removal. From WordPress database scanning to core CMS vulnerability patching, ...

Read more about SiteLock
Free Trial·

SiteLock offers custom pricing plan

Sysdig Secure - New SaaS Software

Sysdig Secure

Protect your cloud and containers with confidence.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Sysdig Secure?

Sysdig Secure is a powerful cloud and container security platform that provides an intelligent architecture for monitoring, security, and forensics integrated with Docker and Kubernetes. With a unified platform, users can gain a better understanding of security across their cloud, containers, ...

Read more about Sysdig Secure
Free Trial·

Sysdig Secure offers custom pricing plan

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Reach in-market buyersRank above rivals2M+ buyers a year
GoDaddy Website Security

GoDaddy Website Security

Secure your website with GoDaddy's protection.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.2

Add to compare

What is GoDaddy Website Security?

GoDaddy Website Security protects websites from hackers, spammers and other online security threats. Available in both Standard and Deluxe versions, the plans provide a variety of features including Anti-virus protection, Malware scanning for malicious scripts, and a daily backup service to ...

Read more about GoDaddy Website Security
Free TrialTry Free →
Plesk - New SaaS Software

Plesk

Empower your web presence with Plesk.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Plesk?

Plesk is the transformative hosting control panel for web professionals. It is an OS-agnostic, cloud-ready platform that streamlines operations, automates tasks, and optimizes websites, applications, and hosting services. With a presence across 140 countries, 32 languages, 384,000 servers, 11 ...

Read more about Plesk
Free TrialTry Free →·

Plesk offers custom pricing plan

Lacework - New SaaS Software

Lacework

Secure your cloud, innovate with confidence.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Lacework?

Lacework is a data-driven cloud security platform providing agile solutions. Through its Polygraph Data Platform, it streamlines cloud security across popular cloud providers such as AWS, Azure, GCP and Kubernetes to detect and respond to budget-threatening security events. With Lacework, ...

Read more about Lacework
Free Trial·

Lacework offers custom pricing plan

Logo

Check Point Endpoint Security

Comprehensive Protection for Endpoints

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

watch-demo

Watch Demo

What is Check Point Endpoint Security?

Check Point Endpoint Security offers a unified solution that combines data security, network security, advanced threat prevention technologies, and remote access VPN into a single package. Designed to deliver comprehensive protection for both Windows and Mac OS X environments, this solution ...

Read more about Check Point Endpoint Security
Free TrialTry Free →·

Check Point Endpoint Security offers custom pricing plan

ALTCHA logo

ALTCHA

Secure your online content with ALTCHA.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is ALTCHA?

ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source, and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully ...

Read more about ALTCHA
Free TrialTry Free →
Modshield SB

Modshield SB

Stay one step ahead of cyber threats.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Modshield SB?

Modshield SB is a web application firewall that blocks SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF) by intercepting malicious traffic before it reaches the application server. It includes geographic traffic controls for whitelisting or blacklisting by ...

Read more about Modshield SB
Free Trial·

Modshield SB offers custom pricing plan

CookieChimp

CookieChimp

Efficiently manage website cookies with cutting-edge AI technology.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

Add to compare

What is CookieChimp?

Discover CookieChimp, the cutting-edge solution for modern website cookie consent management. With the tagline "Modern Website Cookie Consent," CookieChimp is your go-to AI-driven platform for seamlessly handling all things cookie-related, tailored specifically for professionals. By leveraging ...

Read more about CookieChimp

Starts from $5.00/month when Billed Yearly, also offers free forever plan

NetFUNNEL

NetFUNNEL

Safeguard your website and customer experience with ease.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is NetFUNNEL?

NetFUNNEL is a traffic management solution that protects websites from crashes during high-volume traffic events by queuing visitors and managing server load. Administrators can configure resource utilization settings and monitor access patterns to prevent server overload during peak periods.

Read more about NetFUNNEL
Free TrialTry Free →·

Starts from $550.00/month when Billed Yearly

Campaign Cleaner

Campaign Cleaner

Maximize email delivery success with spam-proof communication.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

Add to compare

What is Campaign Cleaner?

Campaign Cleaner is an email deliverability tool that scans emails for spam triggers, broken links, and suspicious phrases before they are sent. Its algorithm analyzes content and flags elements that could cause spam filters to intercept the message, then suggests adjustments. It is designed ...

Read more about Campaign Cleaner

Campaign Cleaner offers custom pricing plan

Intruder vs its closest competitors

Buyers comparing Intruder usually weigh it against these 11 website security software competitors, starting with SiteLock, Sysdig Secure and GoDaddy Website Security. Each is compared against Intruder on rating, pricing and feature coverage below.

Tools similar to Intruder

Searches for "sites like Intruder" and "apps like Intruder" land on the same set of options as "Intruder alternatives" — the 11 options below cover both, whether you want a like-for-like replacement or something lighter.

Why each Intruder alternative is here

SiteLockBest for teams of all sizes

Exceptional customer service from representatives like Danielle, Crystal, Eric, and others.

Watch for: Some customers faced difficulties in resolving malware issues despite paying for services.

Sysdig SecureBest for teams of all sizes

Comprehensive security monitoring

Watch for: May require technical expertise

GoDaddy Website SecurityBest for teams of all sizes

Comprehensive protection

Watch for: Pricing may be high for small sites

PleskBest for teams of all sizes

OS-agnostic platform

Watch for: Complex for beginners

LaceworkBest for teams of all sizes

Data-driven security

Watch for: Complex setup process

Check Point Endpoint SecurityBest for teams of all sizes
ALTCHABest for teams of all sizes
Modshield SBBest for teams of all sizes
CookieChimpBest for teams of all sizes
NetFUNNELBest for teams of all sizes

Effectively controls large, sudden traffic surges in real time to keep services stable and prevent server crashes.

Campaign CleanerBest for teams of all sizes

How to pick the right Intruder replacement

The numbers behind these 11 free alternatives: 11 offer a free tier; paid plans run $9.9, with Plesk the cheapest entry point; and Sysdig Secure is the highest rated at 4.8★ across 55 reviews.

How we score these.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to Intruder are Sysdig Secure (4.8★), NetFUNNEL (4.7★), Plesk (4.5★). Compare all 11 alternatives side-by-side above.

When evaluating alternatives to Intruder, prioritize: Security Testing, Network Scanning, Vulnerability Prioritization, Monitoring, Reports, transparent pricing, free trial availability, and integrations with your existing tools. Use the filters above to compare by feature, budget, and team size.

Migration difficulty depends on how deeply Intruder is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

Finding the right Intruder alternative for your team

Planning your switch from Intruder

Leaving Intruder is mostly about avoiding surprises. Export your data, check the new tool can import it, and confirm feature parity for what you actually use. Run a pilot before the full switch, and keep your Intruder account open until migration wraps. The free tiers above let you trial without spending.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].