JavaScript frameworks
3 detectedAstro
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Classnames
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Headless UI
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Public technology profileAging scan
protonvpn.com
Our latest scan of protonvpn.com detected 7 technologies across 5 categories. The strongest signals include Astro, Classnames, Headless UI.
7
Technologies
5
Categories
99%
Avg. confidence
44d ago
Last scanned
Current snapshot
Detected technology stack
Grouped by category · confidence is detection certainty
Other
1 detectedPWA
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Frontend
1 detectedTailwind CSS
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
CDN & delivery
1 detectedCloudflare
First seen Jul 17, 2026Last seen Jul 17, 2026
95%
confidence
Security
1 detectedLetsEncrypt
First seen Jul 17, 2026Last seen Jul 17, 2026
95%
confidence
Publisher intelligence
Advertising ecosystem
Declared direct and reseller relationships from ads.txt and app-ads.txt. These are publisher declarations, not runtime detections.
Declaration files
0/2
ads.txt and app-ads.txt
Direct relationships
0
Reseller relationships
0
Declared systems
0
Counted per declaration file
ads.txt
Not presentHTTP 404
- Direct
- 0
- Reseller
- 0
- Systems
- 0
app-ads.txt
Not presentHTTP 404
- Direct
- 0
- Reseller
- 0
- Systems
- 0
Infrastructure
Network and security
DNS, hosting, TLS and email-security evidence observed during the latest scan. Incomplete lookups remain explicitly unknown.
Transport and email security
HTTPSObserved
HSTSObserved on scanned response
SPFConfigured
DMARCConfigured · quarantine
Network footprint
Site signals
Content and capabilities
Structured data, languages, social platforms and page capabilities observed across the scanned pages.
Languages
en
Structured data
AnswerCorporationFAQPagePersonPostalAddressQuestionVideoObjectWebPageWebSite
Social platforms
facebookinstagramlinkedinxyoutube
Currencies
CHFUSD
Observed capabilities
Responsive viewportApple touch iconPricing pageBlog
Recent technology changes
Observed changes between stored scans, not vendor-confirmed installation dates.