URL Inspection: https://sysdesign.trei.dev

Open Cached · just now

HTTP Status

200

Ping

79 ms

Technologies

Technologies Detected

Infrastructure & Network (5)

CDN	Cloudflare CDN Cloudflare CDN is a global content delivery network that accelerates and protects websites and applications.
Description: Cloudflare CDN is a global content delivery network that accelerates and protects websites and applications. It provides DDoS protection, SSL/TLS encryption, web performance optimization, and caching services through its worldwide network of data centers. View full details
Evidence: • DNS Record TXT (SPF): v=spf1 include:_spf.mx.cloudflare.net ~all (root domain: trei.dev)

CDN	Fastly Fastly is a modern content delivery network and edge cloud platform that provides real-time content delivery, security, and edge computing services.
Description: Fastly is a modern content delivery network and edge cloud platform that provides real-time content delivery, security, and edge computing services. It's known for its real-time purging capabilities, edge computing with Varnish, and support for modern web technologies and APIs. View full details
Evidence: • IP 199.36.158.100 → ASN 54113 (Fastly)

CDN	jsDelivr jsDelivr is a free, open-source CDN that provides fast and reliable delivery of JavaScript libraries, CSS frameworks, and fonts from npm and GitHub.
Description: jsDelivr is a free, open-source CDN that provides fast and reliable delivery of JavaScript libraries, CSS frameworks, and fonts from npm and GitHub. It's one of the fastest CDNs available and supports both traditional and ES module formats. View full details
Evidence: • HTML <script>: https://cdn.jsdelivr.net/npm/[email protected]/marked.min.js

DNS Provider	Cloudflare DNS Cloudflare DNS is a fast, reliable DNS service from Cloudflare.
Description: Cloudflare DNS is a fast, reliable DNS service from Cloudflare. It offers authoritative DNS hosting with global distribution, DDoS protection, DNSSEC support, and integration with Cloudflare's CDN and security services. It's known for its speed and security features. View full details
Evidence: • DNS Record NS: alexis.ns.cloudflare.com (root domain: trei.dev) • DNS Record NS: teagan.ns.cloudflare.com (root domain: trei.dev)

Email Provider	Cloudflare Email Cloudflare Email Routing is a service that allows you to create custom email addresses and route them to your existing email provider.
Description: Cloudflare Email Routing is a service that allows you to create custom email addresses and route them to your existing email provider. It provides email forwarding and routing capabilities integrated with Cloudflare's DNS infrastructure. View full details
Evidence: • DNS Record MX: route1.mx.cloudflare.net (root domain: trei.dev) • DNS Record MX: route3.mx.cloudflare.net (root domain: trei.dev) • DNS Record MX: route2.mx.cloudflare.net (root domain: trei.dev)

SSL & Certificates (1)

Certificate Authority	Google Trust Google Trust Services is Google's certificate authority that issues SSL/TLS certificates for Google services and Google Cloud Platform.
Description: Google Trust Services is Google's certificate authority that issues SSL/TLS certificates for Google services and Google Cloud Platform. It provides trusted root certificates used by Google's infrastructure and services. View full details
Evidence: • SSL Certificate Issuer: C=US, O=Google Trust Services, CN=WR3

Other (3)

Cloud	Cloudflare Cloudflare is a global cloud services provider that offers CDN, DDoS protection, DNS, security, and performance optimization services.
Description: Cloudflare is a global cloud services provider that offers CDN, DDoS protection, DNS, security, and performance optimization services. It helps websites and applications improve speed, security, and reliability through its global network of data centers. View full details
Evidence: • IP 104.21.79.159 → ASN 13335 (Cloudflare)

Cloud	Firebase Firebase is Google's mobile and web application development platform that provides backend services including authentication, real-time database, cloud storage, hosting, and analytics.
Description: Firebase is Google's mobile and web application development platform that provides backend services including authentication, real-time database, cloud storage, hosting, and analytics. It helps developers build and scale applications quickly without managing backend infrastructure. View full details
Evidence: • CNAME: Reverse DNS: system-design-in.web.app

SEO	Google Console Google Search Console (formerly Google Webmaster Tools) is a free service from Google that helps website owners monitor and maintain their site's presence in Google search results.
Description: Google Search Console (formerly Google Webmaster Tools) is a free service from Google that helps website owners monitor and maintain their site's presence in Google search results. It provides insights into search performance, indexing status, and technical SEO issues. View full details
Evidence: • DNS Record TXT: google-site-verification=4lTrJl5XfPz1z3VMy_ttt62c-kxE6SkzYx3OIDPk-QU (root domain: trei.dev) • DNS Record TXT: google-site-verification=QkgPVwXRn36Tdma_DWnG_VwwQIMmwEqWbPvO7vGy5II (root domain: trei.dev)

Metadata & SEO

Title

System Design Prep | Learning workspace

Description

A system design interview workspace for requirements, capacity, APIs, data models, caching, queues, consistency, observability, reliability, security, and tradeoff narratives.

Canonical URL

https://sysdesign.trei.dev/

Language

Viewport

width=device-width, initial-scale=1