www.npr.org Tech Stack

Live first-party scan of www.npr.org's tech stack. 8 technologies detected across 10 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Last change: Apr 26, 2026 - www.npr.org added Nginx. Scan timestamp: May 31, 2026.

HTTP 200 Last analyzed: May 31, 2026

Infrastructure Layer

Invisible to browser extensions — detected via DNS & TLS

Let's Encrypt

SSL/TLS certificate authority
TLS

A/B Testing

Optimizely

A/B Testing, Personalisation
HTTP

CDN

Cookie compliance

OneTrust

Cookie compliance
HTTP

JavaScript libraries

Modernizr

JavaScript libraries
HTTP

Payment processors

Stripe

Payment processors
HTTP

Personalisation

Optimizely

A/B Testing, Personalisation
HTTP

Reverse proxies

Nginx

Web servers, Reverse proxies
HTTP
cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*

SSL/TLS certificate authority

Let's Encrypt

SSL/TLS certificate authority
TLS

Tag managers

Google Tag Manager

Tag managers
HTTP

Web servers

Nginx

Web servers, Reverse proxies
HTTP
cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*

Tech Stack Changes

Apr 26, 2026 Added Nginx (Web servers)
Apr 26, 2026 Removed HSTS (Security)

Compare www.npr.org's Stack

How was this detected?

For www.npr.org, DetectZeStack identified 8 technologies: 7 via HTTP fingerprinting and 1 via TLS handshake.

Detection runs four independent layers in parallel: HTTP response headers, TLS handshake metadata, certificate issuer inspection, and DNS record lookups. The breakdown above shows which layers fired for this specific domain — some sites carry most of their fingerprint in HTTP, others rely heavily on infrastructure (DNS/TLS).

How www.npr.org compares

Symmetric diff between www.npr.org and similar sites detected on DetectZeStack.

vs jordancraig.com — 2 shared, 4 unique here, 4 unique there

Only on www.npr.org: Nginx, Stripe, Modernizr, Optimizely

Only on jordancraig.com: Intelligems, Fondue, Google Analytics, HSTS

View jordancraig.com's full stack →

vs www.christ.de — 1 shared, 4 unique here, 4 unique there

Only on www.npr.org: OneTrust, Let's Encrypt, Nginx, Stripe

Only on www.christ.de: HSTS, Java, SAP Commerce Cloud, Usercentrics

View www.christ.de's full stack →

vs jomablue.com — 3 shared, 4 unique here, 4 unique there

Only on www.npr.org: Modernizr, Optimizely, Akamai, OneTrust

Only on jomablue.com: YouTube, Elementor, PHP, MySQL

View jomablue.com's full stack →

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What technologies does www.npr.org use?

www.npr.org uses 8 technologies across 10 categories. The full breakdown is listed above, organized by function. Each technology was identified through analysis of HTTP headers, DNS records, TLS certificates, and HTML content.

What CDN does www.npr.org use?

www.npr.org uses Akamai for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.

How is www.npr.org's tech stack detected?

DetectZeStack identifies technologies on www.npr.org through multiple detection methods: HTTP response header analysis, HTML and JavaScript content scanning, DNS record lookups, and TLS certificate inspection. This multi-layered approach catches technologies that single-method tools miss.

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