URL Inspection: https://submillisecond.com/cookbook/recipes/subms-count-min-sketch

Technologies Detected

Frameworks (1)

Framework	Next.js Next.js is a React-based web framework that enables server-side rendering, static site generation, and API routes.
Description: Next.js is a React-based web framework that enables server-side rendering, static site generation, and API routes. It provides automatic code splitting, optimized performance, and a great developer experience for building production-ready React applications and websites. View full details
Evidence: • HTML <script>: https://submillisecond.com/_next/static/chunks/2276112c-c8ec957914564070.js • HTML <script>: https://submillisecond.com/_next/static/chunks/5654-4320a5b57ac4e2e1.js • HTML <script>: https://submillisecond.com/_next/static/chunks/main-app-3071405976c2f808.js • HTML <script>: https://submillisecond.com/_next/static/chunks/8484-dccd44290e1c5521.js • HTML <script>: https://submillisecond.com/_next/static/chunks/4162-befe11ab474a5d55.js ... and 6 more

Infrastructure & Network (3)

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: • Header Cf-Cache-Status: MISS • Header Cf-Ray: a1e74c2c8bfb0e96-IAD • Header Server: cloudflare

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: jasper.ns.cloudflare.com • DNS Record NS: josephine.ns.cloudflare.com

Email Provider	Microsoft 365 Microsoft 365 (formerly Office 365) provides business email hosting using Exchange Online.
Description: Microsoft 365 (formerly Office 365) provides business email hosting using Exchange Online. It offers custom domain email addresses, Outlook integration, large mailbox storage, and advanced security features along with the full Microsoft Office suite. View full details
Evidence: • DNS Record MX: submillisecond-com.mail.protection.outlook.com • Subdomain autodiscover.submillisecond.com: CNAME: Reverse DNS: autodiscover.outlook.com

Development (1)

JavaScript Library	Webpack Webpack is a module bundler for JavaScript applications that bundles modules and assets into optimized files for production.
Description: Webpack is a module bundler for JavaScript applications that bundles modules and assets into optimized files for production. It processes dependencies, performs code splitting, and optimizes assets, making it a core tool in modern JavaScript development workflows. View full details
Evidence: • HTML <script>: https://submillisecond.com/_next/static/chunks/webpack-e01e38ba40682936.js • Resource Hint (Preload): https://submillisecond.com/_next/static/chunks/webpack-e01e38ba40682936.js

Analytics & Marketing (1)

Analytics	Cloudflare Web Analytics Cloudflare Web Analytics is a privacy-first web analytics service that provides website traffic insights without using cookies or tracking personal data.
Description: Cloudflare Web Analytics is a privacy-first web analytics service that provides website traffic insights without using cookies or tracking personal data. It offers visitor statistics, page views, and performance metrics while respecting user privacy and GDPR compliance. View full details
Evidence: • HTML <script>: https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496

Security & Privacy (2)

Security	Cloudflare NEL Monitoring Cloudflare NEL Monitoring is a service that helps organizations monitor and analyze Network Error Logging (NEL) reports.
Description: Cloudflare NEL Monitoring is a service that helps organizations monitor and analyze Network Error Logging (NEL) reports. It provides NEL reporting and analysis tools to help organizations monitor network errors, identify connectivity issues, and improve network reliability and performance. View full details
Evidence: • Header Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=ltETurTBeCPmH75jm77pfs52MsG3QKdjegYP13VC1AZL25li6c24FPEwAnY6znYJvuXwxswMnaqarN9cvOLl5XXvSFScHX%2B4rpTLfZCm3H3BX1u%2BlM2xc2G4VspIqesNsJHZkkY%3D"}]}

Whois Privacy	Domains By Proxy Domains By Proxy is GoDaddy's WHOIS privacy protection service that shields domain owner contact information from public WHOIS databases.
Description: Domains By Proxy is GoDaddy's WHOIS privacy protection service that shields domain owner contact information from public WHOIS databases. It helps protect domain registrants from spam, scams, and identity theft by replacing personal information with proxy contact details in WHOIS records. View full details
Evidence: • WHOIS Organization: Domains By Proxy, LLC

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=WE1

Other (2)

Cloud	Cloudflare Cloudflare is a global cloud services provider that offers CDN, DDoS protection, DNS, security, and performance optimization services. Active incidents
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 2606:4700:3033:0:0:0:6815:1404 → ASN 13335 (Cloudflare)

Email	GoDaddy GoDaddy is one of the world's largest domain registrars and web hosting companies.
Description: GoDaddy is one of the world's largest domain registrars and web hosting companies. It provides domain registration, web hosting, website builders, email, and SSL certificates, serving millions of customers worldwide. View full details
Evidence: • DNS Record TXT (SPF): v=spf1 include:secureserver.net -all • WHOIS Registrar: GoDaddy.com, LLC

Metadata & SEO

Title

Count-Min Sketch - cookbook

Description

Frequency-estimation sketch with conservative update and Kirsch-Mitzenmacher hashing. Always over-estimates, never under.

Keywords

low-latency systems,tick-to-trade,market microstructure,trading systems,order book,matching engine,execution,smart order routing,market making,FIX protocol,SBE,ITCH,OUCH,kernel bypass,DPDK,ef_vi,Onload,FPGA,backtesting,transaction cost analysis,high-performance computing,C++,Rust,Java,Python,high-frequency trading,quantitative finance,risk systems,pricing engines,market data infrastructure,financial systems engineering,low-latency systems

Canonical URL

https://www.submillisecond.com/cookbook/recipes/subms-count-min-sketch/

Language

en

Viewport

width=device-width, initial-scale=1

Domain Owner Information

View Full WHOIS

Registrar

GoDaddy.com, LLC

Created

December 14, 2025

Expires

December 14, 2026

SSL/TLS Certificate

View Full SSL Report

Issued By

C=US, O=Google Trust Services, CN=WE1

Security Score

75 /100

Social Media Cards

OpenGraph (4 properties)

Type

article

Description

Frequency-estimation sketch with conservative update and Kirsch-Mitzenmacher hashing. Always over-estimates, never under.

Title

Count-Min Sketch

Url

https://www.submillisecond.com/cookbook/recipes/subms-count-min-sketch/

Twitter Cards (4 properties)

Description

The data structures and systems behind fast finance - trading, market data, risk, pricing, exchange infrastructure. Measured on stated hardware, reproducible, sub-millisecond where it counts.

Title

submillisecond - Finance, held at the p99.

Card

summary_large_image

Creator

@submillisecond