Stack Explorer
The web's technology index
- 19
- categories
- 452
- subcategories
- 55K+
- technologies
- 399M+
- websites
Most used on the web
by sites detected-
01 SPF (Sender Policy Framework) 148M
-
02 Let's Encrypt 97.54M
-
03
Amazon Web Services (AWS)
67.32M
-
04
Cloudflare
65.6M
-
05 Open Graph 61.28M
-
06
AWS Global Accelerator
55.77M
-
07
GoDaddy
55.12M
-
08
Godaddy DNS
53.48M
-
09
Twitter Cards
49.32M
-
10
DMARC
44.66M
-
11
jQuery
43.63M
-
12
Google Fonts
42.13M
Cloudflare DNS
42.01M
Php
40.04M
Google Search Console
35.13M
Nginx
33M
WordPress
32.54M
MySQL
31.2M
Apache HTTP Server
22.82M
MicroSoft Pinned Site Enhancements
22.5M
Font Awesome
21.86M
jQuery Migrate
21.32M
Google Workspace
21.1M
Google Tag Manager
17.31M
Google Analytics
17.15M
Bootstrap
15.38M
Godaddy Professional Email
15.28M
GoDaddy DMARC
14.5M
Cloudflare Browser Insights
13.96M
Godaddy SSL Certificates
13.92M
Outlook for business
13.9M
Litespeed
13.39M
Amazon
12.88M
Microsoft 365
12.38M
React
12.37M
Afternic DNS
11.47M
Sectigo
11.14M
Namecheap DNS
10.65M
AWS EC2
10.39M
Elementor
10.35M
Hostinger
10.12M
Namecheap
9.93M
By category
19 categories · 452 subcategoriesAdvertising & Media
top 10-
Meta Business Suite
2.73M
-
Google AdSense
1.98M
- Google Ads 1.9M
-
Mediaelement Js
1.9M
-
Mediaelement
1.34M
- Jellyfish 1.26M
-
Yandex
680K
-
Vimeo
519K
-
Sortable
474K
- Lightgallery 438K
Business Operations
top 10-
Twitter Cards
49.32M
-
Microsoft 365
12.38M
-
Awesome Min
7.7M
-
Skype Toolbar
5.26M
- Shopping Cart 3.41M
- Storefront 2.33M
- Polyfills 1.7M
-
Apple Business Manager
987K
- Animations 976K
- Slideshow 940K
Content Management
top 10-
WordPress
32.54M
-
Squarespace
9.24M
-
Wix
7.84M
-
GoDaddy Website Builder
6.18M
-
Wix Thunderbolt
4.55M
-
Wpbakery
1.82M
-
Divi
1.44M
-
Duda
922K
-
Gravatar Profiles
880K
-
Weebly
865K
Customer Experience
top 10-
Brevo
1.12M
-
Element
1M
-
Spaceship SellerHub
481K
-
Facebook Chat Plugin
441K
- WhatsApp Business Chat 361K
-
WhatsApp Button
113K
-
JivoChat
89.32K
-
Ultimate
58.84K
-
Tidio
46.17K
-
LiveChat
37.97K
DNS Services
top 10-
Godaddy DNS
53.48M
-
Cloudflare DNS
42.01M
-
Afternic DNS
11.47M
-
Namecheap DNS
10.65M
-
Google Domains DNS
9.91M
-
1&1 Ionos DNS
9.18M
-
Hostinger DNS
8.28M
-
Wix.com DNS
6.91M
-
HiChina DNS
4.39M
-
Strato DNS
3.72M
Data & Geospatial
top 10- Google Maps 1.42M
-
Google Maps API
1.12M
-
Google Maps Platform
1.1M
- Leaflet 411K
- Tablesort 323K
-
Amp Bind
262K
- Transit 183K
-
RTL.css
103K
-
Mapbox Js
79.23K
-
Mapbox Gl
59.21K
Development Utilities
top 10- MySQL 31.2M
-
Require I18N
9.91M
- OpenResty 5.17M
-
Sentry
4.75M
-
Focus Within Pollyfill
4.56M
-
Js Cookie
4.19M
-
Google APIs
3.99M
-
DashIcons
2.71M
-
Js Polyfills
2.27M
-
Apple Webkit
2.26M
Digital Marketing
top 10-
Zoho Mail
2.21M
-
Mailchimp
1.06M
-
Amazon SES
801K
-
Gravatar Hovercards
798K
-
HubSpot
687K
-
Klaviyo
476K
-
HighLevel
464K
-
Mailerlite
462K
-
Salvattore
352K
-
Tilda Forms
336K
E-commerce & Sales
top 10-
SquareSpace eCommerce
7.9M
- Squarespace Commerce 7.83M
- Cart Functionality 6.77M
-
Shopify
5.62M
-
Shopify Localization
2.41M
- Shopify Cloud 2.34M
- Shopify Digital Wallet 2.29M
-
Shopify CDN
2.28M
-
Shopify Performance
1.85M
-
Shopify Pay
1.37M
Hosting & Infrastructure
top 10- SPF (Sender Policy Framework) 148M
-
Amazon Web Services (AWS)
67.32M
-
Cloudflare
65.6M
-
AWS Global Accelerator
55.77M
-
GoDaddy
55.12M
-
DMARC
44.66M
-
Google Workspace
21.1M
-
Godaddy SSL Certificates
13.92M
-
Amazon
12.88M
-
AWS EC2
10.39M
Industry Specific
top 10-
Themify Icons
405K
-
NetEase
265K
-
home.pl
219K
-
T-Online
190K
-
Tildasans Fonts
129K
-
Paginationjs
96K
-
Moodle
62.01K
- Picmo 58.99K
- Campuspedia 48.98K
-
Heebo
47.9K
MX & Email Hosting Services
top 10-
Godaddy Professional Email
15.28M
- GoDaddy DMARC 14.5M
-
Outlook for business
13.9M
-
Namecheap Business Email
9.24M
-
IONOS Hosted Email
8.32M
-
Hostinger Business Email
4.14M
-
Strato Email
3.54M
- HostGator Email 3.1M
-
OVH mail
2.93M
-
MailChannels
1.94M
Marketing & SEO
top 10- Open Graph 61.28M
-
Google Search Console
35.13M
-
Google Tag Manager
17.31M
-
Google Analytics
17.15M
-
Cloudflare Browser Insights
13.96M
- React 12.37M
- Google Analytics 4 9.01M
-
Google Site Kit
4.09M
- Cloudflare Insight 3.81M
-
WordPress.com Stats
2.69M
Security & Compliance
top 10- Let's Encrypt 97.54M
- Nginx 33M
- Apache HTTP Server 22.82M
- Sectigo 11.14M
-
Starfield Tech
5.93M
-
Google reCAPTCHA
4.74M
- reCAPTCHA 4.54M
-
GlobalSign
2.2M
- Cloudflare Bot Management 2.13M
-
Cloudflare Bot Solutions
2.13M
Shopify Extension
top 10- Component Cart Items 1.14M
- Component List Social 920K
- Component Newsletter 918K
- Predictive Search 914K
- Component List Menu 845K
- Component Search 841K
- Component Menu Drawer 841K
- Component List Payment 822K
- Component Slider 821K
- Shopify Marketing 755K
Software Development
top 10-
jQuery
43.63M
-
Php
40.04M
-
Font Awesome
21.86M
-
jQuery Migrate
21.32M
-
Litespeed
13.39M
- Swiper 9.08M
- WebPack 7.5M
-
React Dom
7.13M
- jQuery ImagesLoaded 5.59M
-
Lodash
5.04M
Web Design Tools
top 10-
Google Fonts
42.13M
-
MicroSoft Pinned Site Enhancements
22.5M
-
Bootstrap
15.38M
-
DigiCert
4.54M
- Animate Css 4.45M
- Elementor Icons 4.18M
-
Roboto Slab
2.08M
-
Flexslider
1.91M
- Boxicons 1.58M
-
GSAP
1.34M
Wordpress Plugins
top 10-
Elementor
10.35M
-
LiteSpeed Cache
6.98M
-
Contact Form 7
6.85M
-
Elementor Pro
4.53M
-
WooCommerce
4.18M
-
Slider Revolution
3.01M
-
Jetpack
2.1M
-
All-in-One SEO Plugin
1.66M
-
Visual Composer Website Builder
1.47M
-
WP Rocket
1.34M
Wordpress Themes
top 10-
Hello Elementor
2.57M
-
Astra Theme
2.1M
-
Divi Theme
1.64M
- Ruby 754K
-
H4 Modern HTML Template
567K
- Latest 499K
-
Flatsome
478K
-
GeneratePress
426K
-
Kadence WP
356K
-
OceanWP
355K
Turn any of these stacks into a prospect list
Every technology in this index can become a filtered, exportable lead list in minutes.