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Is This Website Built With Relume?

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

How to Tell if a Website Uses Relume

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

You might want to detect Relume 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 Relume?

Relume is an AI-powered component library and sitemap builder for Webflow and React. Sites built using Relume components load resources from library.relume.io and use rl- prefixed CSS classes.

It is primarily used for marketing sites, landing pages, portfolios, and business websites — all generated from prompts or visual editors with AI assistance.

Visit Relume official website

Signs a Website Is Built With Relume

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

High Confidence

CDN Domain

Assets (images, scripts, fonts) are loaded from Relume-specific CDN domains. This is one of the most reliable signals because CDN domains are hard to hide.

library.relume.io
High Confidence

JavaScript / Script Files

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

relume.iolibrary.relume.io
Medium Confidence

HTML Attributes & Class Names

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

relume-rl-

How to Manually Detect Relume 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 relume or relume
  4. If found in script src, class names, or meta tags — it's likely Relume

Method 2 — Browser DevTools Network Tab

  1. Press F12 to open DevTools
  2. Click the Network tab and reload the page
  3. Filter by relume in the search box
  4. If you see requests to Relume-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 Relume 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 Relume-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 Relume

Sign up at https://relume.io and describe your website in plain language. The AI generates a complete site in seconds that you can customize, connect a domain to, and publish.

Other popular AI website builders include Framer, Durable, Lovable, Gamma, and Mixo.

Get started with Relume

Frequently Asked Questions

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

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

Is your Relume detector free?

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

How accurate is the Relume detection?

We check 5 unique Relume 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 Relume 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 Relume website?

If you want to build something similar, visit https://relume.io 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.