URL Inspection: https://www.extensionstart.com

Technologies Detected

Frameworks (1)

Framework	Astro Astro is a modern static site generator that focuses on content-focused websites with minimal JavaScript.
Description: Astro is a modern static site generator that focuses on content-focused websites with minimal JavaScript. It allows developers to use any UI framework (React, Vue, Svelte, etc.) but ships zero JavaScript by default, resulting in fast-loading websites with excellent performance. View full details
Evidence: • HTML Attribute: data-astro-cid • HTML <link>: https://www.extensionstart.com/_astro/index.DVWYODP-.css • HTML <link>: https://www.extensionstart.com/_astro/Layout.Z8m3851g.css

Infrastructure & Network (4)

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)

DNS Provider	Namecheap DNS Namecheap DNS is a DNS hosting service provided by Namecheap, a domain registrar and web hosting company.
Description: Namecheap DNS is a DNS hosting service provided by Namecheap, a domain registrar and web hosting company. It offers free DNS hosting with domain registration and provides DNS management tools integrated with Namecheap's services. View full details
Evidence: • DNS Record NS: dns1.registrar-servers.com (root domain: extensionstart.com) • DNS Record NS: dns2.registrar-servers.com (root domain: extensionstart.com)

Email Provider	Google Workspace Google Workspace (formerly G Suite) provides business email hosting using Gmail's infrastructure.
Description: Google Workspace (formerly G Suite) provides business email hosting using Gmail's infrastructure. It offers custom domain email addresses, large storage capacity, advanced spam filtering, and integration with Google's productivity suite. View full details
Evidence: • DNS Record MX: smtp.google.com (root domain: extensionstart.com)

Registrar	Namecheap Namecheap is a popular domain registrar and web hosting company known for competitive pricing and strong privacy protection.
Description: Namecheap is a popular domain registrar and web hosting company known for competitive pricing and strong privacy protection. It provides domain registration with free WHOIS privacy, web hosting, email, and SSL certificates, with a focus on user privacy and transparency. View full details
Evidence: • WHOIS Registrar: NameCheap, Inc. NAMECHEAP INC

Analytics & Marketing (2)

Analytics	Plausible Analytics Plausible Analytics is a privacy-focused, lightweight web analytics service that provides website statistics without tracking personal data or using cookies.
Description: Plausible Analytics is a privacy-focused, lightweight web analytics service that provides website statistics without tracking personal data or using cookies. It offers simple, GDPR-compliant analytics with essential metrics while respecting user privacy and maintaining fast page load times. View full details
Evidence: • Header Content-Security-Policy (script-src): https://plausible.io • Header Content-Security-Policy (connect-src): https://plausible.io

Marketing	Sendinblue Sendinblue (now Brevo) is an all-in-one marketing platform that provides email marketing, SMS marketing, marketing automation, and CRM tools.
Description: Sendinblue (now Brevo) is an all-in-one marketing platform that provides email marketing, SMS marketing, marketing automation, and CRM tools. It offers affordable pricing and comprehensive features for small and medium businesses to manage their marketing campaigns. View full details
Evidence: • DNS Record TXT: brevo-code:5908f6bf92428784b5683f1120c4e035 (root domain: extensionstart.com)

Security & Privacy (2)

Security	Brevo DMARC Brevo (formerly Sendinblue) DMARC is a DMARC monitoring and reporting service provided by Brevo.
Description: Brevo (formerly Sendinblue) DMARC is a DMARC monitoring and reporting service provided by Brevo. It helps organizations implement and monitor DMARC policies to protect against email spoofing and improve email deliverability and security. View full details
Evidence: • DMARC RUA: mailto:rua@dmarc.brevo.com

Whois Privacy	Withheld for Privacy Withheld for Privacy is a WHOIS privacy protection service that masks domain owner contact information in public WHOIS databases.
Description: Withheld for Privacy is a WHOIS privacy protection service that masks domain owner contact information in public WHOIS databases. It helps protect domain registrants from spam, identity theft, and unwanted contact by replacing personal information with proxy contact details in WHOIS records. View full details
Evidence: • WHOIS Organization: Privacy service provided by WITHHELD FOR PRIVACY 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=WR3

Other (2)

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: extensionstart-web.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=mQMCMvvO06laJOZyT9vnXW9-uem5g35CY5y7olb5e7Y (root domain: extensionstart.com)

Metadata & SEO

Title

ExtensionStart · Build a browser extension people pay for

Description

A WXT + React 19 starter kit for browser extensions that charge money: Google sign-in that works inside extensions, Stripe billing with server-side entitlements, a Chrome Web Store policy-safe paywall engine, and 400+ automated tests.

Canonical URL

https://extensionstart.com/

Language

en

Viewport

width=device-width, initial-scale=1

Domain Owner Information

View Full WHOIS

Registrar

NameCheap, Inc. NAMECHEAP INC

Created

July 18, 2026

Expires

July 18, 2027

SSL/TLS Certificate

View Full SSL Report

Issued By

C=US, O=Google Trust Services, CN=WR3

Security Score

92 /100

Social Media Cards

OpenGraph (11 properties)

Type

website

Description

A WXT + React 19 starter kit for browser extensions that charge money: Google sign-in that works inside extensions, Stripe billing with server-side entitlements, a Chrome Web Store policy-safe paywall engine, and 400+ automated tests.

Title

ExtensionStart · Build a browser extension people pay for

Image

https://extensionstart.com/open-graph/index.png

Url

https://extensionstart.com/

Locale

en_US

Site Name

ExtensionStart

Image:width

1200

Image:height

630

Image:alt

ExtensionStart · Build a browser extension people pay for

Image:url

https://extensionstart.com/open-graph/index.png

Twitter Cards (5 properties)

Description

A WXT + React 19 starter kit for browser extensions that charge money: Google sign-in that works inside extensions, Stripe billing with server-side entitlements, a Chrome Web Store policy-safe paywall engine, and 400+ automated tests.

Title

ExtensionStart · Build a browser extension people pay for

Image

https://extensionstart.com/open-graph/index.png

Card

summary_large_image

Image:alt

ExtensionStart · Build a browser extension people pay for