WordPress is an open-source content management system powering everything from personal blogs to large-scale enterprise websites, making it the most widely deployed CMS on the web and a primary target for accurate fingerprinting. AIWebsiteDetector.com identifies WordPress installations using a layered set of technical signals, including 3 distinct script patterns, 2 HTML structural patterns, 2 HTTP response headers, 2 meta tag patterns, and 1 CDN domain reference — collectively providing high-confidence detection across both default and heavily customized deployments. These signals typically manifest as characteristic markup in page source, identifiable request headers returned by the server, and script references tied to WordPress core or its content delivery infrastructure. Because WordPress supports thousands of themes and plugins that can obscure surface-level indicators, the multi-signal approach ensures reliable identification even when administrators attempt to minimize the platform's visible footprint. WordPress itself is free and open-source, but hosting costs vary widely — from shared environments to managed WordPress hosting — meaning the same CMS signature can appear across dramatically different infrastructure setups, a nuance the detection engine accounts for when evaluating header and CDN patterns.
Detect WordPress Websites — Free Tool
Enter any URL to check if it was built with WordPress. Instant results, no account required.
How we detect WordPress — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect WordPress Websites
Script Patterns
3 patterns
CDN Domains
1 patterns
HTML Patterns
2 patterns
HTTP Headers
2 patterns
Meta Tags
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for wordpress-specific patterns in the HTML.
2. Look for Script Files
Check the Network tab in DevTools for JavaScript files loaded from WordPress domains.
3. Check CDN Domains
Network requests to these CDN domains indicate a WordPress site:
wp-content\/uploads4. Use AI Website Detector (Easiest)
Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.
Frequently Asked Questions
Is this website built with WordPress?
Paste the URL into the free scanner above. We check for WordPress-specific signals including the wp-content path, WordPress REST API endpoints, generator meta tags, and common WordPress scripts — and return a confidence score instantly.
What is WordPress?
WordPress is the world's most popular content management system, powering over 40% of all websites. It is open-source, extensible via thousands of plugins and themes, and used for everything from personal blogs to enterprise websites.
How do you detect a WordPress website?
WordPress sites reliably expose signals in the page source: the wp-content directory in asset URLs, the WordPress REST API at /wp-json/, generator meta tags, and login page at /wp-admin/. Our scanner checks all of these automatically.
What is the difference between WordPress.com and WordPress.org?
WordPress.org is the open-source software you install on your own hosting. WordPress.com is a hosted service run by Automattic with a free tier and paid plans. Our scanner detects both — WordPress.com sites also show Automattic CDN references.
Is WordPress free to use?
The WordPress software itself is free and open source. You need to pay for web hosting (from ~$3/month) and optionally for premium themes and plugins. WordPress.com offers a free hosted plan with limitations, with paid plans from ~$4/month.
What are the most popular WordPress plugins?
The most popular WordPress plugins include WooCommerce (e-commerce), Yoast SEO (search optimisation), Elementor (page builder), WPForms (forms), and Jetpack (performance and security). Our scanner often detects these plugin fingerprints alongside the WordPress core.
About WordPress
WordPress is a leading cms used by thousands of businesses and developers worldwide. Our detection engine can identify WordPress-built websites with high confidence by analyzing multiple technical signals.
Whether you're a developer doing competitive research, a designer looking for inspiration, or just curious about how a website was built — AI Website Detector gives you instant, accurate detection.
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Detection Info
- Category
- CMS
- Signals Used
- 8 patterns
- Accuracy
- High
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