SparkPost — Websites Using SparkPost | WhatStack

Lookup Sites Technologies Pricing

W

WhatStack

Detect the full technology stack of any website. Identify CMS platforms, JavaScript frameworks, analytics tools, ad tech, hosting providers, and 8,000+ web technologies.

Free API access included. Built for developers, agencies, and sales teams doing lead generation and competitive research.

Product

Technology Lookup
Technology Directory
Website Directory
Pricing & Plans
API Documentation
Browser Extension
Blog
Dashboard
Contribute

Categories

CMS & Site Builders
Ecommerce & Payments
JavaScript Frameworks
Analytics & Tracking
Advertising & Marketing
Infrastructure & Hosting
Security & Privacy

Popular Technologies

WordPress
Shopify
React
Next.js
Google Analytics
Cloudflare
WooCommerce

Compare

vs BuiltWith
vs Wappalyzer
vs WhatCMS

Account

Sign in
Create account

What is WhatStack?

WhatStack is a technology detection and website profiling platform. Discover what CMS, frameworks, analytics, ad tech, payment processors, and hosting providers any website uses. Our detection engine analyzes HTTP headers, HTML patterns, JavaScript globals, DNS records, cookies, and ads.txt to identify 8,000+ web technologies with high accuracy.

Use Cases

Lead generation for agencies and SaaS companies. Competitive analysis and market research. Technology adoption tracking across industries. Sales prospecting based on technology stack. Website auditing and technology profiling for consulting.

© 2026 WhatStack. All rights reserved.

Detecting 8,000+ web technologies across CMS, ecommerce, analytics, advertising, and more.

SparkPost — Websites Using SparkPost | WhatStack

Websites Using SparkPost

Email delivery and analytics service for transactional and marketing email.

Categories: Email

Official website: https://www.sparkpost.com

SparkPost is ranked #35 of 42 in Email by website adoption.

Email alternatives ranked by popularity

Yoast SEO Premium — 8,378 websites
SendGrid — 7,160 websites
All in One SEO Pack — 4,436 websites
The SEO Framework — 575 websites
MailerSend — 550 websites
SEOmatic — 429 websites
MailPoet — 389 websites
Alli — 0 websites
Amazon SES — 0 websites
Atomseo — 0 websites

How WhatStack detects SparkPost

WhatStack detects SparkPost by analyzing HTTP headers, HTML source code, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries using signature-based pattern matching across 10 different analyzers.

Frequently Asked Questions

What is SparkPost?: Email delivery and analytics service for transactional and marketing email.
How many websites use SparkPost?: WhatStack has detected SparkPost on 0 websites in our database.
How do you detect SparkPost?: We analyze HTTP headers, HTML source, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries to identify SparkPost with high accuracy using signature-based pattern matching.