Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Multi-CDNs/WAFs Detector

Multi-CDNs/WAFs Detector by FlopperPika4789

Detect the CDN, WAF, and bot-management provider behind any domain — 25 providers, DNS + header + IP + Certificate Transparency scoring, all local. Includes crowd-sourced signature reporting.

0 (0 reviews)0 (0 reviews)
1 User1 User
Download Firefox and get the extension
Download file

Extension Metadata

About this extension
Multi-CDN/WAF Detector identifies the CDN, WAF, and bot-management
infrastructure behind any domain, locally in your browser.


Cloudflare, Akamai, Fastly, CloudFront, Azure Front Door, Google, Imperva,
Sucuri, DataDome, PerimeterX, F5 Distributed Cloud, Vercel, Netlify,
Fly.io, Render, Railway, Deno Deploy, BunnyCDN, StackPath, KeyCDN,
Gcore, Tencent EdgeOne, Alibaba Cloud CDN, ArvanCloud, VNCDN.

Multi-signal scoring — not just a single header guess:
- DNS (CNAME/NS/MX/TXT/HTTPS records) and domain-suffix matching
(works even when a provider's own hostname has no separate CNAME)
- Response headers, cookies, and IP-range matching against each
provider's officially published ranges, refreshed daily
- PTR/RDAP cross-verification and Certificate Transparency lookups
- Layer-order inference (who sits in front of whom), origin-IP-leak
detection, DNS-provider fingerprinting, SPF/DMARC checks, and anycast
divergence checks across multiple resolvers
  • Confidence breakdown per provider, with a staleness warning when a
    signature hasn't been reviewed recently
  • Scan diffing — see exactly what changed since your last scan of the
    same domain, saved as a full infrastructure timeline
  • Batch scanning and side-by-side domain comparison
  • Distributed reachability probing from ~12 global locations
    (via check-host.net)
  • Passive ambient detection — an optional badge that shows the CDN/WAF
    count for the site you're currently browsing, without you having to
    open the popup and scan
  • A watchlist with scheduled auto-rescans, so you find out when a
    domain's infrastructure changes instead of having to check by hand
  • Optional Shodan/Censys threat-intel lookups for a resolved IP
    (bring your own API key — off by default)


When a scan turns up response headers no provider recognizes yet, each
detected provider's detail view surfaces them as one-click "report this?"
buttons — helping catch new provider signatures as CDNs roll out
infrastructure changes. On by default, and fully disclosed:
  • Sends a provider ID, the header name (or a short note you write), and
    the domain it was seen on — never your IP, and nothing beyond that.
  • Domain is included deliberately: it's what lets a report be checked
    against reports from other domains, so a header that only ever shows
    up on one site (probably that site's own header, not a real provider
    signal) can be told apart from one that's genuinely corroborated
    across many unrelated domains.
  • Fully visible and controllable in Settings — turn it off, or point it
    at your own self-hosted collector, any time. No account or sign-up
    required either way.


All scanning and scoring happens locally in your browser. The only
network calls this extension makes are: (1) DNS-over-HTTPS lookups and
direct HTTP requests to the domain you choose to scan, (2) daily
refreshes of official public IP ranges from each provider, and (3) the
opt-out crowd-report submissions described above. No analytics, no ads,
no tracking of your browsing beyond what you explicitly scan.


JSON/CSV/Markdown export, dark and light themes, a side-panel view,
keyboard shortcuts (Ctrl+Shift+S popup, Ctrl+Shift+D side panel,
Ctrl+Shift+V scan from clipboard), and settings synced across your
Firefox profiles.

Source: https://github.com/VuJohn123/CDNs_WAFs_Detector
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Get data from the clipboard
  • Download files and read and modify the browser’s download history
  • Display notifications to you
  • Access browser tabs

Optional permissions:

  • Access your data for all websites
Learn more
More information
Add-on Links
  • Support Email
  • Copy add-on ID
Version
9.5.13
Size
193.05 KB
Last updated
21 hours ago (Aug 4, 2026)
Related Categories
  • Web Development
  • Privacy & Security
License
MIT License
Version History
  • See all versions
Tags
  • privacy
  • security
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.