Is This Website Built With Drupal?

How to Tell if a Website Uses Drupal

Identifying whether a website was built with Drupal used to require technical expertise — inspecting source code, tracing network requests in DevTools, and knowing which patterns to look for. Our free scanner automates all of that: it fetches the page, analyzes 7 Drupal-specific signals, and returns a verdict with a confidence score.

You might want to detect Drupal for competitive research, due diligence before acquiring a site, or simple curiosity. Whatever the reason, this page covers every method — automated and manual.

What is Drupal?

Drupal is an open-source content management system written in PHP, widely adopted by government agencies, universities, large enterprises, and media organizations that require a highly customizable and security-conscious publishing platform. The AIWebsiteDetector.com engine identifies Drupal installations through a combination of seven distinct technical signals, including two JavaScript file patterns, two HTML structural patterns, two characteristic HTTP response headers, and one meta tag pattern embedded in page markup. Common detection indicators include Drupal-specific generator meta tags, inline HTML attributes such as data attributes injected by the CMS core, HTTP headers like the `X-Generator` or `X-Drupal-Cache` response fields, and script paths referencing Drupal's module or core directory structure. These layered signals allow the detector to distinguish Drupal from other PHP-based CMS platforms with high confidence, even when administrators have partially obscured the installation through security hardening measures. Drupal is self-hosted software available at no licensing cost from drupal.org, though its presence on high-traffic government and institutional domains makes it one of the more consistently detectable enterprise CMS platforms in the wild, owing to the persistence of its core-generated markup across versions.

It is primarily used for content-driven websites, blogs, news sites, documentation, and publishing platforms.

Visit Drupal official website

Signs a Website Is Built With Drupal

Our detection engine checks 7 unique Drupal fingerprints. Here are the most reliable signals:

High Confidence

JavaScript / Script Files

Drupal loads specific JavaScript runtime files or loads scripts from identifiable URLs. Checking script src attributes reveals the platform.

drupal/sites/default/files

High Confidence

HTTP Response Headers

Drupal-hosted sites respond with specific HTTP headers that identify the platform or infrastructure. These are visible in DevTools → Network tab.

x-generatorx-drupal-/

Medium Confidence

HTML Attributes & Class Names

Drupal injects proprietary class names, data attributes, or markup patterns into the page HTML that are unique to the platform.

drupalfield-type-

Medium Confidence

Meta Tags

Some Drupal sites include a generator meta tag or other platform-specific meta elements in the document head.

Drupal

How to Manually Detect Drupal Websites

Method 1 — View Page Source

Open the website in your browser
Press Ctrl+U (Windows) or Cmd+Option+U (Mac)
Search (Ctrl+F) for drupal or drupal
If found in script src, class names, or meta tags — it's likely Drupal

Method 2 — Browser DevTools Network Tab

Press F12 to open DevTools
Click the Network tab and reload the page
Filter by drupal in the search box
If you see requests to Drupal-specific domains, it's confirmed

Faster: Skip the manual steps — paste the URL into our scanner above and we check all 7 signals in seconds.

How Our Drupal Detector Works

When you submit a URL, our engine fetches the page from its server — just like a browser would — then analyzes the response across 7 Drupal-specific fingerprints:

Script analysis

We scan all loaded JavaScript files for known CDN paths and runtime names

CDN domain matching

We cross-reference every asset request against known platform CDNs

HTML pattern scanning

We search the DOM for platform-specific class names and data attributes

Header inspection

We read HTTP response headers that identify the server or platform

Meta tag extraction

We check generator and other meta tags in the document head

Confidence scoring

We weight each matched signal and normalize to a 0–99% score

Frequently Asked Questions

How can I tell if a website was built with Drupal?

The most reliable ways to detect Drupal are: (1) open DevTools → Network tab and look for requests to Drupal-specific CDN domains, (2) view page source and search for Drupal-specific class names or data attributes, (3) use our free scanner — we check 7 detection signals automatically and return a confidence score.

Is your Drupal detector free?

Yes, completely free. Paste any URL into our scanner and we'll analyze it for Drupal fingerprints immediately. No account required, no limits on scans.

How accurate is the Drupal detection?

We check 7 unique Drupal fingerprint signals across HTML, JavaScript, CDN domains, meta tags, and HTTP headers. Our confidence score reflects how many signals matched — a score above 70% is a strong indicator. We cap accuracy at 99% to reflect that all fingerprint-based detection is probabilistic.

Can Drupal sites be detected if they use a custom domain?

Yes. Custom domains don't hide the underlying platform. The JavaScript files, CDN requests, HTML attributes, and server headers all remain identifiable regardless of the domain name used. Our scanner fetches the page directly and analyzes its technical composition.

What should I do after detecting a Drupal website?

If you want to build something similar, visit https://drupal.org to learn more or sign up. If you're doing competitive research, our scan result also shows the full technology stack — including hosting platform, domain age, and other detected technologies. You can share the result link with your team.