What powers 51sec.org?
Last seen Jun 2026 · 75 technologies across 29 categories
Advertising
Criteo
since Sep 2019
DoubleClick Campaign Manager (DCM)
since Aug 2022
Ezoic
since Apr 2021
Google AdSense
since Apr 2019
Google Publisher Tag
since Feb 2021
OpenX
since Sep 2022
Prebid
since Sep 2022
PubMatic
since Nov 2020
Analytics
Ackee
since Mar 2026
Cloudflare Browser Insights
since Apr 2021
Google Analytics
since Apr 2019
Microsoft Clarity
since Mar 2024
Moat
since Feb 2021
Quantcast Measure
since Sep 2019
Snowplow Analytics
since Sep 2022
Yandex.Metrika
since Mar 2026
Appointment scheduling
Calendly
since Jun 2025
Authentication
Google Sign-in
since Feb 2021
Blogs
Blogger
since Mar 2020
CDN
cdnjs
since Feb 2022
Cloudflare
since Apr 2019
Google Hosted Libraries
since Feb 2022
jsDelivr
since Aug 2022
CMS
WordPress
since Apr 2019
Cookie compliance
Funding Choices
since Dec 2022
Databases
MySQL
since Apr 2019
Ecommerce
Cart Functionality
since Mar 2024
WooCommerce
since Mar 2024
MailChimp
since Jan 2026
Font scripts
Google Font API
since Apr 2019
Twitter Emoji (Twemoji)
since Apr 2019
Geolocation
ipify
since Dec 2024
Issue trackers
Cloudflare Network Error Logging
since Feb 2022
JavaScript frameworks
JavaScript libraries
AOS
since Nov 2024
FingerprintJS
since Apr 2026
LazySizes
since Feb 2022
LazySizes unveilhooks plugin
since Jul 2022
Marked
since Nov 2024
OWL Carousel
since Dec 2020
web-vitals
since Feb 2022
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Prism
since Nov 2024
RSS
since Dec 2022
Webpack
since Nov 2024
PaaS
Vercel
since Nov 2024
Payment processors
PayPal
since Apr 2026
Performance
Cloudflare Rocket Loader
since Oct 2024
Cloudflare Zaraz
since Jan 2026
Programming languages
Security
Tag managers
Google Tag Manager
since Sep 2019
UI frameworks
Semantic UI
since Jun 2025
Tailwind CSS
since Nov 2024
Video players
Webmail
Microsoft 365
since Sep 2022
Widgets
AddThis
since Apr 2019
WordPress plugins
Jetpack
since Feb 2022
WooCommerce PayPal Payments
since Apr 2026
WordPress themes
Themeansar Newsup
since Feb 2022
Audience
- 63% desktop
- 37% phone
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.02 / 10 · ranked #1,552,512 of all domains
29 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 7.2 MB · 295 requests
- WordPress theme: newsup · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| 51sec.org | 43 |
| www.51sec.org | 39 |
| blog.51sec.org | 25 |
| notes.51sec.org | 24 |
| od.51sec.org | 17 |
| sites.51sec.org | 16 |
| collection.51sec.org | 14 |
Full technology history →
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Recent changes
- dropped 33Across Apr 2026
- dropped Adobe Audience Manager Apr 2026
- detected FingerprintJS Apr 2026
- dropped GumGum Apr 2026
- dropped Microsoft ASP.NET Apr 2026
- detected PayPal Apr 2026
- dropped Rubicon Project Apr 2026
- dropped Vimeo Apr 2026
- dropped Vue.js Apr 2026
- detected WooCommerce PayPal Payments Apr 2026
- detected Ackee Mar 2026
- dropped Amazon Advertising Mar 2026
- dropped AppNexus Mar 2026
- dropped Closure Library Mar 2026
- dropped Conversant Consent Tool Mar 2026
- dropped Priority Hints Mar 2026
- dropped Tapad Mar 2026
- detected Yandex.Metrika Mar 2026
- detected Vimeo Feb 2026
- detected Vue.js Feb 2026
- detected Cloudflare Zaraz Jan 2026
- detected MailChimp Jan 2026
- dropped Ahoy Oct 2025
- detected core-js Oct 2025
- detected ID5 Oct 2025
- dropped POWR Oct 2025
- dropped Ruby Oct 2025
- dropped Ruby on Rails Oct 2025