Technology catalogue

We observe 3,575 technologies. We sell the ones that have passed a precision audit, and we publish the ones that failed with their numbers.

Everything else is listed as not audited — visible and searchable, but not sold. Request an audit and we will measure it.

HubSpot

Marketing automation
72% ±8
2,681
confirmed switches
181,268
domains
n=136
audit sample
2026-08-28
last audited

MailChimp

Marketing automation
75% ±8
6,902
confirmed switches
378,210
domains
n=126
audit sample
2026-08-28
last audited

Zendesk

Live chat
75% ±8
1,245
confirmed switches
75,515
domains
n=128
audit sample
2026-08-28
last audited

Klaviyo

Marketing automation
12% failed
—
not sold
187,644
domains
n=26
audit sample
2026-08-28
last audited

Failed audit. We don't sell this. We fetched 250 reported Klaviyo departures directly. 23 of the 26 checkable companies were still running Klaviyo. Our detection source keys on a script tag Klaviyo no longer always uses on Shopify, so real customers look like departures. A feed that is wrong nine times in ten is not worth selling.

Not audited — observed but not sold

Open Graph
Miscellaneous
8,587,084not audited
jQuery
JavaScript libraries
8,157,855not audited
PHP
Programming languages
6,687,040not audited
Google Analytics
Analytics
6,410,286not audited
Google Font API
Font scripts
5,806,914not audited
Priority Hints
Performance
5,470,757not audited
core-js
JavaScript libraries
5,220,321not audited
Cloudflare
CDN
5,081,844not audited
MySQL
Databases
5,023,572not audited
HTTP/3
Miscellaneous
4,903,735not audited
WordPress
Blogs; CMS
4,799,890not audited
RSS
Miscellaneous
4,502,937not audited
HSTS
Security
4,399,164not audited
jQuery Migrate
JavaScript libraries
4,226,249not audited
Bootstrap
UI frameworks
3,264,292not audited
Google Tag Manager
Tag managers
3,143,276not audited
Nginx
Reverse proxies; Web servers
3,022,487not audited
jQuery UI
JavaScript libraries
2,772,781not audited
Font Awesome
Font scripts
2,654,960not audited
Swiper
JavaScript libraries
2,593,462not audited
Cart Functionality
Ecommerce
2,556,091not audited
Apache HTTP Server
Web servers
2,348,083not audited
Twitter Emoji (Twemoji)
Font scripts
2,311,521not audited
Yoast SEO
SEO; WordPress plugins
2,141,809not audited
Facebook Pixel
Analytics
2,081,058not audited
Cloudflare Bot Management
Security
1,824,905not audited
reCAPTCHA
Security
1,805,403not audited
React
JavaScript frameworks
1,762,162not audited
Elementor
Page builders; WordPress plugins
1,674,872not audited
Cloudflare Browser Insights
Analytics; RUM
1,528,907not audited
WhatsApp Business Chat
Live chat
1,512,243not audited
Microsoft 365
Email; Webmail
1,479,828not audited
Contact Form 7
Form builders; WordPress plugins
1,474,791not audited
cdnjs
CDN
1,436,926not audited
Google Workspace
Email; Webmail
1,428,189not audited
GSAP
JavaScript frameworks
1,389,672not audited
PWA
Miscellaneous
1,341,497not audited
Google Maps
Maps
1,183,169not audited
jsDelivr
CDN
1,167,022not audited
Lodash
JavaScript libraries
1,145,268not audited
GoDaddy
Hosting
1,090,245not audited
Modernizr
JavaScript libraries
1,074,645not audited
Site Kit
Analytics; WordPress plugins
1,051,396not audited
Amazon Web Services
PaaS
1,042,453not audited
LiteSpeed
Web servers
1,020,293not audited
Slick
JavaScript libraries
1,013,892not audited
WooCommerce
Ecommerce; WordPress plugins
990,045not audited
Google Hosted Libraries
CDN
957,225not audited
YouTube
Video players
956,801not audited
LazySizes
JavaScript libraries; Performance
914,140not audited
OWL Carousel
JavaScript libraries
876,318not audited
Sentry
Issue trackers
814,933not audited
Webpack
Miscellaneous
807,036not audited
Lightbox
JavaScript libraries
805,027not audited
Tailwind CSS
UI frameworks
778,487not audited
FancyBox
JavaScript libraries
776,537not audited
WordPress Block Editor
Page builders
762,768not audited
Isotope
JavaScript libraries
762,397not audited
Vue.js
JavaScript frameworks
693,941not audited
Underscore.js
JavaScript libraries
672,187not audited

Showing 60 of 3,575, most-installed first.