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StackScan VS Qualys

Compare StackScan VS Qualys and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

StackScan logo StackScan

Discover the tech behind the web. StackScan tracks 50,000+ technologies across 100M+ websites with powerful filtering, keyword search, and stack intelligence.

Qualys logo Qualys

Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
  • StackScan Keyword Scan
    Keyword Scan //
    2026-05-10
  • StackScan
    Image date //
    2026-05-10
  • StackScan
    Image date //
    2026-05-10
  • StackScan
    Image date //
    2026-05-10
  • StackScan
    Image date //
    2026-05-10

StackScan helps businesses find and analyze websites based on the technologies they use or the keywords they target. Instead of manually researching websites one by one, users can instantly search across 100M+ domains and identify sites using platforms like Shopify, WordPress, WooCommerce, Webflow, and thousands of other technologies.

The platform provides practical filtering tools that allow users to narrow results by country, TLD, industry, or specific technology combinations. This makes it useful for building targeted lead lists, researching competitors, discovering niche markets, or identifying companies using certain software stacks for outreach and partnerships.

StackScan also supports bulk data downloads, keyword-based website discovery, and structured reporting to simplify large-scale research workflows. With continuously refreshed datasets and scalable search capabilities, it enables marketers, agencies, analysts, and growth teams to access actionable web intelligence quickly and efficiently.

  • Qualys Landing page
    Landing page //
    2023-09-23

StackScan features and specs

  • Comprehensive Stack Detection
    StackScan analyzes websites and provides detailed information about the technology stack being used, including frameworks, CMS platforms, programming languages, and third-party services, giving users a thorough overview of a site's technical infrastructure.
  • Competitive Analysis
    StackScan enables users to perform competitive analysis by revealing the technologies competitors are using, helping businesses make informed decisions about their own technology choices and strategies.
  • Easy to Use
    The tool offers a simple and straightforward interface where users can quickly look up a website's technology stack by entering a URL, making it accessible even to non-technical users.
  • Market Research Utility
    StackScan can be valuable for sales and marketing professionals who need to identify potential leads based on the technologies companies use, enabling more targeted outreach and prospecting efforts.
  • Free Access
    StackScan provides basic technology detection capabilities at no cost, allowing users to explore and analyze website technology stacks without requiring a paid subscription for fundamental lookups.

Qualys features and specs

  • Comprehensive Security
    Qualys offers a wide array of tools and functionalities, including vulnerability management, policy compliance, and web application scanning, providing comprehensive security coverage.
  • Cloud-based Platform
    Being a cloud-based solution, Qualys is easily accessible from any location, reducing the need for heavy, on-premise infrastructure.
  • Automated Scanning
    Automated, continuous scanning helps keep security measures up to date without requiring constant manual intervention.
  • Detailed Reporting
    Qualys provides detailed and customizable reports that help in understanding the security posture and in complying with regulatory requirements.
  • Integration Capabilities
    The platform easily integrates with other tools and systems, allowing for a streamlined workflow and enhanced security ecosystem.
  • Scalability
    Qualys scales easily from small businesses to large enterprises, providing flexible solutions that can grow with the organization.

Possible disadvantages of Qualys

  • Cost
    While offering comprehensive features, the cost can be high, which may not be feasible for smaller organizations or those with limited budgets.
  • Complex Setup and Configuration
    Initial setup and configuration can be complex and time-consuming, often requiring expert knowledge to get the most out of the platform.
  • Steep Learning Curve
    Given its extensive feature set, the platform may have a steep learning curve for new users, necessitating substantial training and familiarization.
  • Performance Impact
    In some instances, on-premise scanners and agents can cause performance degradation of the systems they are monitoring.
  • Support Response Time
    Some users have reported slower response times from Qualys support, which can be an issue during critical situations.
  • Limited Customizations
    While Qualys provides many features, some users have found limitations in the ability to customize certain tools and workflows to fit specific needs.

Analysis of StackScan

Overall verdict

  • Based on available information, StackScan appears to be a capable tool for its intended purpose, but you should verify current features, pricing, and reviews directly before committing, as I cannot confirm specific details about this service.

Why this product is good

  • Positions itself as a specialized scanning and analysis solution that can save time on manual tasks
  • Likely offers automation features that streamline technology stack detection or security scanning workflows
  • May provide reporting and insights that help teams make informed decisions
  • Could integrate with existing developer or security tools depending on its feature set

Recommended for

  • Developers and engineering teams wanting to analyze technology stacks
  • Security professionals conducting vulnerability or dependency scans
  • Businesses seeking to audit their software and infrastructure
  • Teams looking to automate repetitive scanning and reporting tasks

Analysis of Qualys

Overall verdict

  • Qualys is generally regarded as a highly effective and reputable solution in the cybersecurity industry. Its continuous updates and innovative features ensure that it remains a top choice for businesses seeking robust security and compliance tools.

Why this product is good

  • Qualys is considered good due to its comprehensive suite of cloud-based security and compliance solutions. It offers services such as vulnerability management, threat protection, and compliance monitoring, which are essential for businesses looking to secure their IT infrastructure. Its platform is known for being reliable, scalable, and user-friendly, making it suitable for organizations of varying sizes.

Recommended for

    Qualys is recommended for businesses of all sizes that need a cloud-based, scalable, and comprehensive security solution. It's particularly beneficial for organizations that require vulnerability management, compliance monitoring, and those operating in highly regulated industries where security is paramount.

StackScan videos

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Qualys videos

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Qualys Review by SecNetlab

More videos:

  • Review - Introduction to QualysGuard Vulnerability Management
  • Review - Qualys Security Assessment Questionnaire

Category Popularity

0-100% (relative to StackScan and Qualys)

StackScan

Qualys

Lead Acquisition
100 100%
Lead Acquisition
0% 0
Security
0 0%
Security
100% 100
Business Growth Tools
100 100%
Business Growth Tools
0% 0
Monitoring Tools
0 0%
Monitoring Tools
100% 100

Questions & Answers

As answered by people managing StackScan and Qualys.

Why should a person choose your product over its competitors?

StackScan's answer

StackScan focuses on practical usability, broader stack coverage, advanced filtering, and scalable exports without unnecessary complexity. Users can quickly generate highly targeted datasets using filters like country, TLD, industry, and technology combinations, making research and lead generation faster and more precise.

What makes your product unique?

StackScan's answer

StackScan combines technology stack discovery and keyword-intent research in a single platform, allowing users to find websites not only by the tools they use but also by what they are targeting online. With coverage across 50,000+ technologies and 100M+ domains, it provides scalable, filterable, and export-ready web intelligence.

How would you describe the primary audience of your product?

StackScan's answer

StackScan is built for marketers, growth teams, agencies, sales teams, analysts, SaaS companies, and researchers who need structured web intelligence for prospecting, competitor analysis, market research, or technology adoption tracking.

What's the story behind your product?

StackScan's answer

StackScan was created to simplify the process of finding reliable website and technology data at scale. Existing solutions often felt limited, expensive, or difficult to use for targeted workflows, so StackScan was built as a practical and scalable platform that combines technology detection, keyword discovery, and bulk data access into one system.

Which are the primary technologies used for building your product?

StackScan's answer

StackScan is built using modern web technologies, large-scale crawling systems, distributed data processing, and technology fingerprinting engines designed to analyze and structure massive amounts of web data efficiently.

Who are some of the biggest customers of your product?

StackScan's answer

StackScan is used by agencies, SaaS businesses, growth teams, researchers, and data-driven organizations for lead generation, market intelligence, and competitive analysis across multiple industries.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare StackScan and Qualys

StackScan Reviews

  1. Joe
    ยท Working at pFind ยท
    Amazing deal

    While itโ€™s still in early stage, its lifetime deal is really a great value. Must get if youโ€™re into lead generation.

    ๐Ÿ‘ Pros:    Lifetime plans available|Data accuracy|Data quality|Lead generation|Affordable price
    ๐Ÿ‘Ž Cons:    None so far

Qualys Reviews

7 Best Container Security Tools & Solutions 2022
Qualys Container Security is one of 21 applications that fall under the Qualys Cloud Platform umbrella. The Cloud Platform is available for the cloud and on-premises container deployments. Qualysโ€™ Container Runtime Security (CRS) feature is an add-on that allows enterprises to monitor container runtime; administrators set policies that govern container behavior, and CRS...
Source: www.enterprisestorageforum.com
10 Best Tenable Nessus Alternatives For 2021 [Updated List]
Qualys is a cloud-based application security scanner that is known for its ability to crawl every corner of your IT networkโ€™s portfolio to detect all types of web assets. It grants users full 24/7 visibility of their entire network. It can automatically detect and catalog those assets based on how important they are. This helps security teams prioritize their response to...
Source: www.softwaretestinghelp.com
Best Nessus Alternatives (Free and Paid) for 2021
Qualys is a cloud platform that continuously detects and protects against attacks anytime, anywhere. It is next-generation vulnerability management for hybrid IT environments. Qualysโ€™ integrated approach to IT security and compliance enables organizations of all sizes to successfully achieve both vulnerability management and policy compliance initiatives cohesively.
Source: www.softwaretestingmaterial.com
16 Tresorit Alternatives
Qualysโ€™s Guard has also deployed security on-demand platforms in the world, performing more than 150 million IP audits per year with no software to install and maintain. It is a simple yet powerful security solution that comes with a powerful dashboard where you can easily access all features, tracks threats, analyses data, and generates reports, etc. It also has a list of a...
Source: www.topbestalternatives.com

What are some alternatives?

When comparing StackScan and Qualys, you can also consider the following products

BuiltWith - Find out the technology behind websites

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.

AlienVault USM (from AT&T Cybersecurity) - AlienVault USM Anywhere delivers powerful threat detection, incident response, and compliance management for cloud, on-premises, and hybrid environments.

W3Techs - W3Techs provides information about the usage of various types of technologies on the web.

Tenable.io - Tenable.io Cyber Exposure platform helps to protect any asset on any computing platform and eliminate blind spots.

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