Over 400,000 websites checked
Discover the tech behind any website
Check a website, export the results, or use the API.
Website scansBulk checksCSV, Excel, and JSONAPI access
What can you do with Stackcrawler?
Check websites one at a time, work with a list, or connect through the API.
Check a website
Find its platform, frameworks, analytics tools, plugins, fonts, and other technologies.
Check a list of websites
Scan up to 50 URLs at once instead of checking each site by hand.
Export the results
Download scan results as CSV, Excel, or JSON files.
Use the API
Add website technology checks to your own app or workflow.
Use the data your way
Research websites
See which tools a competitor, customer, or prospect uses.
Build lead lists
Find websites by technology, language, and PageSpeed score.
Save time
Use bulk checks, exports, and the API instead of copying results by hand.
Connect to the Stackcrawler API
Send a domain and get its detected technologies as JSON. New accounts include 25 API requests.
POST https://api.stackcrawler.com/v1/lookup
{
"url": "https://example.com"
}
{
"url": "https://example.com",
"technologies": [
{ "name": "Next.js" },
{ "name": "React" }
]
}Choose a plan
Start free. Upgrade when you need more scans, exports, or API access.
Free
For checking individual websites.
- Individual website checks
- 25 lifetime API requests
Pro
For regular website research.
- Unlimited website scans
- Bulk checks for up to 50 URLs
- CSV, Excel, and JSON exports
Advanced
For lead lists, data, and API use.
- Everything in Pro
- Continued API access
- Lead lists
- Technology and theme datasets
Free
Chrome extension
Check the technology behind the page you are viewing
Open the extension to see the platform and technologies used on the current website.
- Check a website without copying its URL
- View detected tools in one click
- Free to install
Compare technology usage
See which technologies appear most often in each category.
CMS
Compare content management systems.
E-commerce
Compare online store platforms.
Website builders
Compare tools used to build websites.
Hosting
Compare website hosting providers.
JavaScript frameworks
Compare frameworks used on the web.
Browse real websites by technology
Choose a technology to see websites that use it.
Check out tools we detect
Tutorials and articles
Learn how to identify the website platform behind any website with our easy-to-follow guide. Ideal for web developers, designers, and curious minds!
May 14, 2026
Christoffer Pettersen
Elementor works with WooCommerce, allowing you to design custom product pages and more. But some pitfalls are there. Check what they are here.
May 4, 2025
Christoffer Pettersen
5 simple methods to identify a Squarespace website and its template. Use our online tool to learn what Squarespace template a website uses quickly.
May 4, 2025
Christoffer Pettersen
Learn how to find a Squarespace template ID using easy online tools or by checking the source code. This guide walks you through methods to identify a template.
May 4, 2025
Christoffer Pettersen
Learn how to view a website’s page source easily. Follow our guide to access the HTML behind any webpage for better understanding and troubleshooting.
May 4, 2025
Christoffer Pettersen
The easy steps on how to host an Elementor site: 1. Sign up for Elementor Hosting; 2. Set up Website; 3. Connect a domain; 4. Start building.
Apr 28, 2025
Christoffer Pettersen
Quickly discover the web host provider behind any website you visit with these simple and easy-to-use methods.
Apr 28, 2025
Christoffer Pettersen
Shopify is one of the most popular e-commerce solutions. No wonder there are many questions about what Shopify theme a store uses. But how can you check what theme a Shopify store is using? There are two methods: 1) Using an online Shopify detector tool or 2) checking for the Shopify theme manually. Need inspiration […]
Apr 27, 2025
Christoffer Pettersen
Latest blog posts
Check out these examples of unique Shopify stores using the Dawn theme. Get inspiration for your store.
May 21, 2026
Christoffer Pettersen
Check out these 70 Shopify store examples · 1. Billie Eilish Store · 2. MrBeast Store · 3. Bridgetown Mushrooms · 4. Ben & Jerry’s · 5. Madden
Mar 11, 2026
Christoffer Pettersen
Minimal Shopify (and website) themes are popular because they perform better for users and businesses. Minimalism isn’t just a design trend; it improves usability, speed, and conversions. Most minimalist Shopify stores are built with themes like Dawn, Sense, Craft, or Minimal, which focus on large imagery, lots of whitespace, and simple typography, so the product […]
Mar 11, 2026
Christoffer Pettersen
We have compiled a list of general stores built on Shopify that sell a variety of items. Check out more Shopify store examples here: LSKD Made with Shopify LSKD is an Aussie brand that creates functional, stylish sportswear with a street vibe. Their gear is perfect for those who love to stay active and look […]
Mar 11, 2026
Christoffer Pettersen
The clothing industry is one of the most competitive spaces in e-commerce, but some brands stand out by combining strong branding, smart design, and a seamless shopping experience. Many of these successful brands run their stores on Shopify, using the platform’s flexibility to create unique online shops. In this article, we’ll look at 7 inspiring […]
Mar 11, 2026
Christoffer Pettersen
In this article, we have gathered a list of the best Shopify watch stores that you can get inspiration from. Check out more Shopify store examples here: Stay Fine Made with Shopify Live website StayFineCo offers personalized gifts designed to create meaningful connections with loved ones. The selection includes items like wallets and watches for […]
Mar 11, 2026
Christoffer Pettersen
Check out Wappalyzer alternatives, like Stackcrawler, SimilarTech, BuiltWith, WhatRuns, and more. Find top free and paid website profiling alternatives.
Jan 11, 2026
Christoffer Pettersen
Check out BuiltWith alternatives, like Stackcrawler, SimilarTech, WhatRuns, Wappalyzer, and more. Find best free and paid website profiling alternatives.
Sep 30, 2025
Christoffer Pettersen