PHP is the server-side scripting language underlying a huge share of the web — not a framework itself, but the runtime that WordPress, Laravel, Symfony, and countless custom applications execute on. AIWebsiteDetector surfaces bare PHP as a technology (distinct from any specific framework built on top of it) via the `X-Powered-By: PHP/x.x` response header PHP's built-in web server support sends by default, which reveals the language and often the exact version in use even when no more specific framework fingerprint matches.
Detect PHP Websites — Free Tool
Enter any URL to check if it was built with PHP. Instant results, no account required.
How we detect PHP — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect PHP Websites
HTTP Headers
1 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for php-specific patterns in the HTML.
4. 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 PHP?
You can detect if any website was built with PHP by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if PHP was used — with a confidence score.
How to detect if a website was built with PHP?
There are several ways to detect PHP: (1) View the page source and look for PHP-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to PHP CDN domains, (3) Use our free tool — we check 1 detection signals automatically.
What websites are built with PHP?
PHP is used by thousands of websites worldwide. Our scanner has detected many PHP-built sites across different industries. You can scan any URL to check if it uses PHP.
How accurate is the PHP detection?
Our PHP detection engine checks 1 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
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Detection Info
- Category
- Backend Framework
- Signals Used
- 1 patterns
- Accuracy
- High
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