
Tailwind CSS
CSS Framework
HSTS
SecurityTailwind CSS and HSTS are both popular choices, but they serve different needs. Tailwind CSS is a CSS Framework with a traditional, manual approach to building, while HSTS is a Security that prioritises developer or designer control.
Below you'll find a side-by-side breakdown of detection signals, AI scores, and technical fingerprints — plus our honest take on which builder wins for different use cases.
How we detect Tailwind CSS vs HSTS — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
| Category | CSS Framework | Security |
| AI Score | 10/100 — Unknown | 10/100 — Unknown |
| Detection Signals | 5 patterns | 1 patterns |
| Script Detection | 2 patterns | — |
| CDN Detection | 2 domains | — |
| Header Detection | — | 1 headers |
| Sites Detected | 4,305 scans | 273 scans |
| Best For | Professional websitesTry Tailwind CSS → | Professional websitesTry HSTS → |
| Official Website | Visit | Visit |
CSS Framework
Tailwind CSS is a css framework with an AI Score of 10/100 (Unknown). Our detection engine uses 5 signal patterns to identify Tailwind CSS-built sites.
Security
HSTS is a security with an AI Score of 10/100 (Unknown). Our detection engine uses 1 signal patterns to identify HSTS-built sites.
Tailwind CSS is a utility-first CSS framework widely adopted by frontend developers, indie hackers, and modern web agencies who prefer composing designs directly in HTML markup rather than writing custom stylesheets. Unlike traditional CSS frameworks, Tailwind generates styles through low-level utility classes applied inline, which leaves distinctive fingerprints in a site's HTML structure that make it reliably identifiable. AIWebsiteDetector's detection engine identifies Tailwind CSS deployments using a combination of 2 script patterns, 2 CDN domains, and 1 HTML pattern — signals that cover both self-hosted builds and CDN-delivered distributions commonly used during development or prototyping. The presence of Tailwind's CDN-served stylesheet or its compiled output embedded via script tags serves as a high-confidence indicator, particularly when paired with characteristic class naming conventions visible directly in the page's HTML attributes. Tailwind CSS is framework-agnostic and integrates with virtually any stack — from static HTML sites to React, Vue, and Laravel applications — making it one of the more broadly distributed frontend technologies in the detection database. Its usage across a wide range of site types, from personal portfolios to production SaaS products, reflects both its flexibility and its position as a dominant tool in contemporary frontend development.
HTTP Strict Transport Security (HSTS) is a security header standard that instructs browsers to only ever connect to a site over HTTPS, protecting against protocol-downgrade and cookie-hijacking attacks on the first request. Our engine detects it through 1 HTTP header check for the `Strict-Transport-Security` response header. Like CSP, this is a security-configuration signal we surface alongside builder/technology detection, not a vendor or platform identification. Reference: MDN's HSTS documentation.
Choose Tailwind CSS if…
Choose HSTS if…
Our Pick — Based on 4,578+ detections
Detected 16× more often than HSTS across our database of scanned sites.
Was this helpful?
Curious if a website uses Tailwind CSS or HSTS? Scan it now — free.