
BuiltWith
Wappalyzer
W3Techs
TheirStack
WhatRuns
Hunter.io
ZoomInfo
Discover the tech behind the web. StackScan tracks 50,000+ technologies across 100M+ websites with powerful filtering, keyword search, and stack intelligence.

VWO
AB Tasty
Google Analytics
Google Marketing Platform
PractiTest
Azure DevOps
Micro Focus ALM
A/B testing you'll actually use.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | stackscan.com | optimizely.com |
| Pricing | ||
| Company | Startup from Canada · 10 - 19 employees · 2026 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.


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,...
No description of Optimizely yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Optimizely yet.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StackScan and Optimizely.
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.
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.
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.
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.
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.
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.
Share your experience with using StackScan and Optimizely. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


While it’s still in early stage, its lifetime deal is really a great value. Must get if you’re into lead generation.
Optimizely is a lower cost entry tool for anyone looking to do website testing. While their pricing structure has changed over the years it still is a pretty cost effective solution. It is easy to get tests up and...
Optimizely is more of a personalization tool but you cannot ignore its A/B testing superiority. It helps you put the face of the most appealing site in front of customers. There’s a lot of things that are good in this...
Optimizely is a well known A/B testing and experimentation tool for both web and mobile. It claims to be built for the enterprise with features like roles, permissions, and two-factor authentication while still...
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W3Techs provides information about the usage of various types of technologies on the web.
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Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
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