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Is This Website Built With FullStory?

Paste any URL below. Our scanner checks 5 FullStory-specific fingerprints — scripts, CDN domains, HTML attributes, and HTTP headers — and returns a confidence score instantly.

How to Tell if a Website Uses FullStory

Identifying whether a website was built with FullStory 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 5 FullStory-specific signals, and returns a verdict with a confidence score.

You might want to detect FullStory 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 FullStory?

FullStory is a Monitoring used to build websites and web applications.

It is primarily used for business websites, portfolios, landing pages, and personal sites without coding knowledge.

Visit FullStory official website

Signs a Website Is Built With FullStory

Our detection engine checks 5 unique FullStory fingerprints. Here are the most reliable signals:

High Confidence

JavaScript / Script Files

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

fullstory.com/s/fs.jsrs.fullstory.comedge.fullstory.com
Medium Confidence

HTML Attributes & Class Names

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

FullStory.initwindow["_fs_

How to Manually Detect FullStory Websites

Method 1 — View Page Source

  1. Open the website in your browser
  2. Press Ctrl+U (Windows) or Cmd+Option+U (Mac)
  3. Search (Ctrl+F) for fullstory or fullstory
  4. If found in script src, class names, or meta tags — it's likely FullStory

Method 2 — Browser DevTools Network Tab

  1. Press F12 to open DevTools
  2. Click the Network tab and reload the page
  3. Filter by fullstory in the search box
  4. If you see requests to FullStory-specific domains, it's confirmed
Faster: Skip the manual steps — paste the URL into our scanner above and we check all 5 signals in seconds.

How Our FullStory 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 5 FullStory-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

How to Build a Similar Website With FullStory

Sign up at https://www.fullstory.com, pick a template, customize it with the drag-and-drop editor, add your content, and publish. Most website builders offer free plans to get started.

Other popular website builders include Wix, Squarespace, Webflow, Carrd, and Showit.

Get started with FullStory

Frequently Asked Questions

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

The most reliable ways to detect FullStory are: (1) open DevTools → Network tab and look for requests to FullStory-specific CDN domains, (2) view page source and search for FullStory-specific class names or data attributes, (3) use our free scanner — we check 5 detection signals automatically and return a confidence score.

Is your FullStory detector free?

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

How accurate is the FullStory detection?

We check 5 unique FullStory 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 FullStory 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 FullStory website?

If you want to build something similar, visit https://www.fullstory.com 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.