Bulk WordPress detection: version, theme, host (WP Engine, Kinsta, Pressable), WooCommerce flag, and 30+ plugin fingerprints (Elementor, Yoast, WPForms, Divi, Jetpack, more). 43% of the web runs WordPress, profile it in bulk.
WordPress runs roughly 43% of all websites. Every B2B SaaS targeting that audience (managed hosts, SEO suites, page builders, security plugins, e-commerce platforms, membership tools) needs the same filter: is this prospect on WordPress, and what's already in their stack?
The WordPress Stack Detector runs eight detection signals (generator meta, /wp-content/ paths, /wp-includes/ paths, /wp-json REST API, x-pingback header, wp-emoji JS, wp-block-* CSS, /xmlrpc.php), extracts the WordPress version from generator + readme.html, identifies the active theme from /wp-content/themes/, and fingerprints 30+ of the most common plugins by their asset signatures (WooCommerce, Elementor, Yoast, Rank Math, Contact Form 7, WPForms, Gravity Forms, WPML, ACF, MailPoet, ConvertKit, OptinMonster, Divi, WP Rocket, LiteSpeed Cache, Jetpack, BuddyPress, LearnDash, MemberPress, EDD, Events Calendar, Astra, OceanWP, GeneratePress, and more).
Host detection picks WP Engine, Kinsta, Pressable, Pantheon, SiteGround, Cloudways, and WordPress.com from response headers and CDN signatures. Each profile takes one HTTPS request plus an optional deep-probe call to /wp-json.
Build target lists of sites running on slower hosts. "This site is on a shared SiteGround box and runs WP Rocket plus 30 plugins" is a real selling moment for Kinsta and WP Engine sales reps.
Find every site running the competitor plugin. WPForms can target Contact Form 7 sites. Rank Math can target Yoast sites. Postmark can target WP Mail SMTP sites.
Pre-call research at scale. Walk into a discovery call already knowing the prospect's full stack and obvious upgrade paths.
Audit your portfolio for sites still running outdated WordPress versions or known-vulnerable plugin patterns.
{
"domain": "techcrunch.com",
"is_wordpress": true,
"confidence": 1.0,
"wp_version": "6.4.3",
"theme_name": "techcrunch-2024",
"host_hint": "WP Engine",
"is_woocommerce": false,
"plugins_detected": [
"Yoast SEO",
"Jetpack",
"WP Rocket"
],
"plugin_count": 3,
"locale": "en-US"
}
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