
Vercel
AI Coding Tool
Astro
AI Coding ToolSide-by-side comparison of detection signals, AI scores, and features. Use our free tool to check which one powers any website.
| Category | AI Coding Tool | AI Coding Tool |
| AI Score | 65/100 — AI-Assisted | 65/100 — AI-Assisted |
| Detection Signals | 2 patterns | 6 patterns |
| Script Detection | — | 2 patterns |
| CDN Detection | — | — |
| Header Detection | 2 headers | 1 headers |
| Sites Detected | 2,491 scans | 522 scans |
| Best For | Custom development with AITry Vercel → | Custom development with AITry Astro → |
| Official Website | Visit | Visit |
AI Coding Tool
Vercel is a ai coding tool with an AI Score of 65/100 (AI-Assisted). Our detection engine uses 2 signal patterns to identify Vercel-built sites.
AI Coding Tool
Astro is a ai coding tool with an AI Score of 65/100 (AI-Assisted). Our detection engine uses 6 signal patterns to identify Astro-built sites.
Vercel is the cloud platform and deployment infrastructure behind Next.js — founded by Guillermo Rauch, the creator of Next.js — serving as the premier hosting platform for React, Next.js, and Jamstack applications globally. Vercel's edge network spans 100+ regions worldwide and powers some of the world's highest-traffic web applications, offering automatic scaling, preview deployments for every Git branch, and analytics. It's the deployment platform of choice for teams using Next.js, Remix, Astro, SvelteKit, and other modern frameworks. Sites hosted on Vercel are identifiable through x-vercel-id and x-vercel-cache HTTP response headers, server: Vercel, and *.vercel.app subdomains for preview and hobby deployments. The cf-ray header is absent on Vercel (distinguishing it from Cloudflare-hosted sites). Vercel Hobby plans are free, with Pro plans at $20/month per member.
Astro is a modern web framework that pioneered the 'islands architecture' — shipping zero JavaScript by default and hydrating only the interactive components that need it, resulting in extremely fast initial page loads. Unlike traditional React or Vue frameworks, Astro components compile to pure HTML at build time, and interactive widgets (React, Vue, Svelte, or Solid components) are loaded as isolated islands when needed. It's the framework of choice for documentation sites, blogs, marketing pages, and any content-focused site where performance is paramount. Astro sites are identifiable through the astro-island custom element wrapping client-side interactive components, assets served from the _astro/ directory path with content-hash filenames, and the astro-island attribute in the DOM. The framework produces minimal JavaScript payloads, which makes Astro sites score exceptionally high on Core Web Vitals.
Choose Vercel if…
Choose Astro if…
Our Pick — Based on 3,013+ detections
Detected 5× more often than Astro across our database of scanned sites.
Was this helpful?
Curious if a website uses Vercel or Astro? Scan it now — free.