Top 13 BuiltWith Alternatives For Competitor Tech Stack Analysis

Top 13 BuiltWith Alternatives For Competitor Tech Stack Analysis

Compare the top 13 BuiltWith alternatives for accurate competitor tech stack analysis and informed decision-making.

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Your sales personnel diligently track website technologies to inform their B2B sales prospecting, but their efforts stall because BuiltWith isn't giving them the figures they need. What now? Even the best tools have limitations, and when it comes to B2B sales prospecting, those limitations can hinder your team's performance. Fortunately, there are alternatives to BuiltWith that can help you get the insights you need to optimize your sales prospecting. This article will introduce you to the top BuiltWith alternatives for competitor tech stack analysis.
One of those alternatives is Aomni's website technology checker. With Aomni, you can learn all about your target's tech stack and how they use it to operate their business. This can help you uncover sales triggers to personalize your outreach and improve your chances of winning a deal.

What is BuiltWith, And How Does it Work?

BuiltWith Alternatives
BuiltWith Alternatives
BuiltWith offers a way to track website technologies. The tool profiles sites and provides a detailed report on the technologies powering them. Founded in 2007, BuiltWith combines to uncover details about web technologies, like:
  • Website profiling
  • Lead generation
  • Competitive analysis
  • Business intelligence
Its primary purpose? To tell you exactly what a website is built with, be it:
  • Frameworks
  • CMS platforms
  • WordPress plugins
  • Analytics tools
  • Advertising networks
  • Even fonts

How Does BuiltWith Work?

Website Profiling

At its core, BuiltWith scans websites to identify the technologies powering them. This includes everything from:
  • Content management systems like WordPress or Drupal
  • Backend frameworks
  • Front-end libraries
  • Ad networks
  • Server details
Whether you're curious about the tools a competitor uses or simply want to explore the tech stack behind a favorite site, BuiltWith makes this information readily accessible.

Browser Extension

BuiltWith offers a free browser extension to profile websites with just one click. This on-the-go functionality is great for developers, marketers, or curious users looking to uncover the technologies running any website they visit instantly.

Business Intelligence and Market Analysis

Beyond profiling, BuiltWith provides insights into broader technology trends. Its market analysis features track global usage of web technologies, helping businesses:
  • Identify emerging tools
  • Monitor technology adoption rates
For instance, you can see which e-commerce platforms are gaining traction or which analytics tools are becoming more popular.

Lead Generation

BuiltWith's lead generation capabilities are particularly valuable for sales and marketing teams. By identifying businesses using specific technologies, you can create targeted outreach campaigns. For example, if you sell a plugin that integrates with Shopify, BuiltWith can help you find companies that are already using Shopify.

API for Automation

BuiltWith offers an API for automating searches and pulling technology data programmatically. This is particularly useful for large-scale research or integration into custom tools and workflows.

Pros and Cons Of Using BuiltWith

BuiltWith Alternatives
BuiltWith Alternatives

Pros of Using BuiltWith

Comprehensive Technology Profiling

BuiltWith excels in giving detailed information about a website's tech stack. From CMS platforms and frameworks to analytics tools and advertising networks, users can gain a complete understanding of what powers a website.

Lead Generation Capabilities

Its ability to identify businesses using specific technologies makes it a valuable tool for sales teams. You can tailor outreach campaigns to target potential clients more effectively.

Market Analysis Tools

BuiltWith offers insights into global technology trends, enabling businesses to monitor the adoption of new tools and track competitors.

Ease of Use with Browser Extension

The one-click browser extension makes technology profiling fast and convenient for users, even on the go.

Valuable for Personalization

Understanding the tools and technologies a company uses helps marketers and sales teams personalize pitches, which can improve conversion rates.

Automation via API

BuiltWith's API allows users to automate data extraction and analysis, making it ideal for large-scale research or custom workflows.

Cons of Using BuiltWith

High Cost

Many users find BuiltWith expensive compared to competitors. The pricing can be prohibitive, especially for small businesses or startups.

Occasional Data Inaccuracies

While the data is comprehensive, it is not always 100% accurate. Users have reported instances where the technology listed for a website was outdated or incorrect.

Overwhelming Data

BuiltWith provides a vast amount of information, which can be overwhelming. Sifting through irrelevant data categories can be time-consuming for users needing specific insights.

Limited User-Friendly Features

Some users have expressed that the tool could benefit from better usability, such as collapsing irrelevant categories or speeding up filtered data processing.

Performance Issues

A few users have noted that the tool occasionally slows down or crashes, especially when working with large datasets.

Top 13 BuiltWith Alternatives For Competitor Tech Stack Analysis

1. Aomni: A New Approach to B2B Sales Intelligence

BuiltWith Alternatives
BuiltWith Alternatives
Aomni is an AI agent platform designed specifically for B2B sales intelligence software. Our solution empowers enterprise and strategic account executives to execute account-based sales and marketing strategies with unprecedented efficiency and effectiveness.
Our key features include:
  • AI-powered prospect and account research
  • Comprehensive account mapping and planning
  • Data-driven sales strategy development
  • Automated call preparation
  • Personalized AI agents for sales optimization
  • AI chat interface for streamlined sales processes
  • AI-assisted Account-Based Sales/Marketing campaign execution tool
Aomni addresses critical pain points for sales managers whose Account Executives, Account Managers, and Customer Success Managers must perform better and include quotas. By leveraging our advanced AI technology, sales professionals can significantly enhance their preparation for customer conversations, leading to the following:
  • Larger deal closures
  • Increased promotion opportunities
For individual sales professionals, Aomni provides the tools and insights needed to:
  • Elevate their performance
  • Close more substantial deals
  • Accelerate career progression
Our platform transforms how B2B sales teams operate, ensuring they enter every customer interaction fully prepared and strategically positioned for success. Try our sales intelligence software and our website technology checker for free today!

2. SimilarWeb: Analyze Competitor Tech Stacks

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SimilarWeb is a tool for spying on your competitor’s tech stack on their website. SimilarTech offers in-depth technology insights and lead discovery by analyzing the technology stacks of millions of websites.
Key features:
  • Comprehensive technology analysis of websites.
  • Market share reports and trend analysis.
  • Lead generation with technology filters.
  • Competitor analysis and tracking.

3. Rescan: A Simple Tool for Fast Results

Rescan is a stripped-down tech lookup tool that gets the job done quickly. This tech profiling tool was previously known as Allora. Still, a rebrand has done a much better job of relating to their target audience of those looking for a WhatRuns alternative that’s more modern and up-to-date.
Main Features of Rescan:
  • Tech stack shortcut: Rescan shows a curated list of technology shortcuts for users to access quickly. The most popular are eCommerce technologies.
  • Easy to use: Rescan doesn’t come with extra bells and whistles. Instead, it focuses on providing a simple and easy user experience.
  • Works as a website and technology lookup tool: Rescan allows you to check technology trends and market share with great visuals and simultaneously observe a website’s tech stack.

4. Hunter TechLookup: A Solid, Free BuiltWith Alternative

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Hunter TechLookup is one of the best alternatives on the market today. It’s powered by Hunter, an industry-leading email lookup and outreach tool I’ve used for many years, so I was excited when they launched this new profiling tool.
Main Features of Hunter TechLookup:
  • Easy to use: Hunter TechLookup uses a sleek and minimalist UI that’s easy to navigate. You can pick your technology from the listed categories and quickly check the websites, categories, and languages.
  • Create your list: Hunter TechLookup lets you build a list you can export and use later. You can narrow down searches to the granular level, tweak the website categories and languages, and use the unique popularity metric to include websites based on their popularity.
  • Free tool: TechLookup allows you to search for technology and gain insights for free, which is one of its most attractive features. In your custom list, you’ll be able to see the first 5,000 websites for free. But with a premium plan, you can go as high as 50,000 websites! I’ve found the free plan to be adequate for most use cases.
  • Part of Hunter ecosystem: Hunter scrapes the internet to find email addresses and guess secret ones with great accuracy. I use Hunter to find prospects’ emails and verify my email list. Hunter’s scraping DNA has given TechLookup a decisive edge over its competitors.
The company has also expanded the Hunter suite of products with:
  • CRM integrations
  • Chrome
  • Firefox and Google Sheet add-ons
  • Gmail campaign automation

5. W3Techs: Comprehensive Technology Research

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W3Techs is a web technology survey and research company. They maintain a database of information on the specific technology tools used on websites. This includes:
  • Which CMS is used
  • Which programming languages are used
  • Frontend technology, and so on
W3Techs provides technology information to help website owners make informed decisions about the web technologies they use and to help website developers track trends in web technology usage.
Why Use W3Techs? W3Techs also offers a paid service called W3Techs Insights, which provides, all of which can benefit your sales team, detailed data on:
  • Website technology usage data
  • Technology shortcuts
  • Sales Intelligence

Comprehensive Overview of Website and Mobile Technologies for Competitive Research

It covers:
  • Website technologies
  • Mobile apps
  • Web server software
This makes it a more comprehensive resource for research purposes. W3Techs provides data on the percentage of websites using that technology and the top 10 users of technology stacks.
This level of detail regarding technology stacks can be beneficial when understanding how popular a particular technology is and tracking technology trends.
W3Techs is updated more frequently. This is important because the world of website technologies is constantly changing. Without real-time data, you need access to at least the most up-to-date data to make decisions based on technology profiling.

6. Competera: More Comprehensive Than BuiltWith

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A new website on the block is shaking things up in web development. It's called Competera, and it's one of the best alternatives to track live websites. Competera is a technology lookup website that allows you to find out which website builder a site is using and other information about the technology behind it.
Why Use Competera? The answer to this question is simple: Competera is a better version of Builtwith in every single way. Competera offers more comprehensive features, including:
  • Data on all major hosting providers
  • Ecommerce technologies
This profiling tool includes everything from web development to marketing to e-commerce, while builtwith.com only offers web development.

Competera: Real-Time Website Traffic and Technology Insights for Sales and Marketing Success

Competera includes website traffic data from Alexa and SimilarWeb. This can be helpful if you are trying to gauge the popularity of a particular website and empower your sales and marketing teams. Their team of expert web crawlers constantly analyzes the internet to gather data, so you can be sure that the information in the database is always up-to-date and accurate. This platform is more user-friendly and easier to navigate than builtwith.com.

7. SimilarTech: A Strong BuiltWith Alternative

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SimilarTech is a powerful website profiling platform that provides similar information about website technology. If you’re looking for alternatives, SimilarTech is an excellent option. SimilarTech provides similar website data and insights but offers a few key advantages.
SimilarTech focuses on technology adoption,, spanning 30 billion scanned pages per month. Their historical website traffic data goes much further to 2007, so if you're interested in trends, SimilarTech is the better choice. SimilarTech’s user interface is more intuitive and easy to use than BuiltWith. Simply enter a website URL into the search bar and get information about that website in seconds.

8. WhatCMS: Find Out What CMS a Website Uses

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WhatCMS.org is a website that allows users to input a URL and get information about the content management system (CMS) with which the site is built. It also provides CMS detection for over 1,000+ different systems. WhatCMS is an excellent tool for developers who want to learn more about how different CMSs work or for businesses who wish to determine which CMS their competitors use.
Either way, WhatCMS can be a valuable resource. WhatCMS is available as a web app and as a downloadable PHP script. The web app is the easiest way to start, but the PHP script offers more features and flexibility.

9. Netcraft: A Detailed Security Profiler

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Netcraft is one of the oldest names on this list. Over the years,, they’ve churned out quality security tools, including a website profiler called “What’s the site running?” Netcraft Site Report uses data mining to find a website’s backend infrastructure and security protocols.
Main Features of Netcraft
  • Detailed report: Netcraft offers one of the most thorough security reports ever. Since their domain is security and compliance, you’ll be hard-pressed to find a better option.
  • IP Geolocation: Many tech lookup tools don’t share IP Geolocation, which can be used to track servers. At the same time, this is a pretty noble decision; Netcraft shares Geolocation.
  • Hosting history: Netcraft tracks the Netblock owner and the hosting records of a website.

10. Wappalyzer: Browser Extension Technology Profiler

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Wappalyzer is a technology profiler that provides detailed information about a website’s software stack. Wappalyzer offers a clear snapshot of a site’s technology from:
  • Web frameworks
  • Content management systems (CMS)
  • eCommerce platforms
  • Analytics tools
It works as a browser extension, allowing users to identify technologies as they browse any website quickly.

How Wappalyzer Simplifies Technology Detection for Accurate Web Analysis

How Does Wappalyzer Work? Wappalyzer operates seamlessly in the background. Once installed, it scans the web pages you visit and displays the technologies in use. The extension analyzes scripts, headers, and other site data to detect everything from programming languages to CMS platforms like WordPress or Shopify. It’s not only fast but highly accurate in identifying complex technology stacks.

Wappalyzer: Advanced Technology Identification and Market Insights at Your Fingertips

Key Features of Wappalyzer:
  • Technology identification: Discover the content management systems (WordPress, Shopify, etc.), web frameworks, analytics tools, marketing automation platforms, and more that power any website.
  • Website categorization: Wappalyzer classifies websites by technology types, providing an at-a-glance overview for market research and analysis.
  • Easy browser integration: Seamlessly works with popular browsers like Chrome, Firefox, and Edge.
  • Regular updates: Wappalyzer’s technology detection abilities are continually enhanced to keep up with the ever-evolving web landscape.

11. WhatRuns: A Free BuiltWith Alternative

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WhatRuns is a free Google Chrome extension that lets you discover what technologies are used on any website you visit. From server software and analytics tools to programming languages and content management systems, WhatRuns provides a wealth of information at your fingertips.
How to Use WhatRuns Installation:
  • You’ll need to install the WhatRuns extension. To do so, go to the Google Chrome Web Store, search for “WhatRuns,” and click “Add to Chrome.”
  • Exploring a Website: Once installed, visit any website you're curious about. Click the WhatRuns icon on your browser toolbar (it will turn blue when you visit a website).
  • Understanding the Results: A sidebar will appear on the right side of your browser, revealing all the technologies used on the website. These are typically categorized into different sections, and clicking on any technology will give you a more detailed explanation, such as:
    • ‘Frameworks’
    • ‘Programming Languages’
    • ‘CMS’
    • ‘Web Servers’
    • ‘CDN’ and more

Stay Updated with Favorite Sites: WhatRuns Notifications for Technology Stack Changes

WhatRuns also provides a unique feature allowing you to follow websites. If the site updates its technology stack, you will get a notification. This can be especially useful for web developers and tech enthusiasts looking to stay updated with their favorite sites' technology trends.
Remember, while WhatRuns provides an excellent starting point in understanding a website's architecture, it may not capture every detail, as some technologies could be hidden or customized. Nevertheless, it's a handy tool for anyone interested in exploring the world of web technology.

12. Lead411: A Quick Lead Generation Tool

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Lead411 offers an efficient solution for sales teams needing quick, targeted lead generation. It’s beneficial when tracking specific triggers, such as company growth, personnel changes, or funding rounds that signal business opportunities.
The platform offers:
  • Real-time email verification, providing access to accurate contact data
  • Industry-specific data filters help you focus on leads within your target sectors
  • Team collaboration tools make it easier for teams to share and organize lead data across departments
  • The ability to generate targeted lead lists quickly was a HIGHLIGHT for me with Lead411. The tool was adept at filtering contacts based on precise criteria, which streamlined our sales prospecting.

Lead411 Pricing and Features: Timely Alerts with Room for Improvement in Filtering Accuracy

The alerts for key events, like job changes and funding rounds, were timely and gave us a competitive edge in reaching out to potential clients. On the downside, the platform was occasionally buggy, especially when using the filtering feature.
This felt particularly frustrating when trying to refine searches, as it sometimes led to inaccurate or incomplete results. Other users have reported similar issues, proving this is an ongoing concern when using the platform.
Lead 411 Pricing:
  • Free 7-day trial
  • Basic Plus Unlimited: $99/month/user
  • Enterprise Limited: Custom pricing
  • All prices pertain to the yearly billing model

13. Webspotter: A Budget-Friendly Tech Profiler

You can also use Webspotter if you need a web profiling tool for your business. It profiles technologies such as CMS, analytics tools, web frameworks, and development language used on the websites. With Webspotter, you can get prospective customers’ email addresses and use this information to convert them into leads.
You can find technology usage statistics and a list of all websites using a particular technology. Once you have this information, your sales and marketing teams can use the tool to get insights into competitor activities and use the information for lead conversion.

Webspotter Pricing and Features: Budget-Friendly Technology and Market Insights for Growing Businesses

Key Features:
  • Multiple search options: Webspotter has several search tools. You can search by company size, industry, geography, SAAS niches, website keywords, vertical data, tech used, and spending.
Pricing:
Webspotter is a good option if you are on a budget. It’s more affordable than BuiltWith, so it’s ideal if you want a tool to get started. It has four pricing plans:
  • Starter plan at $7 per month
  • Basic plan at $39 monthly
  • Standard plan at $99
  • Professional option at $199 per month

Choosing The Best Tool For Competitor Tech Stack Analysis

BuiltWith Alternatives
BuiltWith Alternatives

Accuracy: Why Getting the Right Answer Matters

Accuracy serves as the foundation of any good website analysis tool. It defeats its purpose if the tool frequently misidentifies technologies or overlooks key components. Whether you're scouting a competitor's site or planning a similar project, you need reliable information you can trust. After all, guessing doesn't help when precision is the goal.

Coverage: Missing Technologies Is Not an Option

Websites today are built with a mix of popular tools, like WordPress or Shopify, and more niche frameworks or custom scripts. A robust tool should cover this entire spectrum.
The more technologies it can detect, the more comprehensive your analysis will be. You don't want to miss out because the tool has a limited library of recognized tech.

Ease of Use: Not Everyone Is a Developer

Not everyone diving into website tech is a seasoned developer. That's why ease of use matters. A good tool should have an intuitive interface that works whether you're a tech pro or a curious user. If you have to spend hours figuring out how the tool works, it's probably not worth your time.

Real-Time Updates: The Digital World Moves Fast

The digital world evolves quickly—new frameworks emerge, plugins get updated, and old tools fade away. A website analysis tool that keeps up with these changes will always be more valuable. The tool risks becoming obsolete without regular updates, leaving you in the dark about the latest technologies.

Depth of Analysis: Know What You Need

Here’s where you decide what you need. Are you looking for a quick snapshot, like “Oh, this site uses WordPress”? Or do you want a deep dive into server configurations, APIs, and analytics setups? The level of detail you’re after should guide your choice of tool. Some tools give you a surface-level overview, while others are built for serious tech sleuthing.

Try Our Website Technology Checker for Free Today

BuiltWith Alternatives
BuiltWith Alternatives
Aomni is an AI agent platform designed specifically for B2B sales intelligence software. Our solution empowers enterprise and strategic account executives to execute account-based sales and marketing strategies with unprecedented efficiency and effectiveness.
Our key features include:
  • AI-powered prospect and account research
  • Comprehensive account mapping and planning
  • Data-driven sales strategy development
  • Automated call preparation
  • Personalized AI agents for sales optimization
  • AI chat interface for streamlined sales processes
  • AI-assisted Account-Based Sales/Marketing campaign execution tool
Aomni addresses critical pain points for sales managers whose Account Executives, Account Managers, and Customer Success Managers must perform better and include quotas. By leveraging our advanced AI technology, sales professionals can significantly enhance their preparation for customer conversations, leading to the following:
  • Larger deal closures
  • Increased promotion opportunities
For individual sales professionals, Aomni provides the tools and insights needed to:
  • Elevate their performance
  • Close more substantial deals
  • Accelerate career progression
Our platform transforms how B2B sales teams operate, ensuring they enter every customer interaction fully prepared and strategically positioned for success. Try our sales intelligence software and our website technology checker for free today!

What Does Aomni Help Sales Teams Do?

Aomni helps sales teams improve performance by providing actionable intelligence on prospects and accounts. The platform’s AI features significantly enhance sales preparation so professionals can enter every customer conversation with the strategic insights needed to succeed.
Aomni also helps sales teams organize their efforts and execute account-based sales and marketing campaigns that attract attention for faster deal closures. With Aomni, sales professionals access a comprehensive suite of tools and features that transform their approach to B2B sales.

Join 47,000+ revenue pros

Learn about the future of account-based GTM

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Written by

David Zhang
David Zhang

Founder & CEO at Aomni