From 0ee456ad58328f857f9adb8c477651e19fd8fc23 Mon Sep 17 00:00:00 2001
From: Nik L <lokhmachevnikita@gmail.com>
Date: Thu, 19 Mar 2026 15:31:15 -0400
Subject: [PATCH] feat: seo optimization p1

---
 app/globals.css              |   4 +-
 app/greyscan/layout.tsx      |  29 ++++++++-
 app/layout.tsx               |  96 +++++++++++++++++++++++++---
 app/privacy/page.tsx         | 118 +++++++++++++++++++++++++++++++++++
 app/sitemap.ts               |   9 +++
 components/agents.tsx        |   3 +-
 components/comparison.tsx    |  18 +++---
 components/footer.tsx        |   6 ++
 components/observability.tsx |  11 +++-
 next.config.mjs              |  14 ++++-
 public/llms.txt              |  30 +++++++++
 public/robots.txt            |  26 ++++++++
 12 files changed, 341 insertions(+), 23 deletions(-)
 create mode 100644 app/privacy/page.tsx
 create mode 100644 app/sitemap.ts
 create mode 100644 public/llms.txt
 create mode 100644 public/robots.txt

diff --git a/app/globals.css b/app/globals.css
index 766559b..8356a1f 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -49,8 +49,8 @@
 }
 
 @theme inline {
-  --font-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
-  --font-serif: 'Source Serif 4', 'Source Serif Pro', Georgia, serif;
+  --font-sans: var(--font-inter), 'Inter', ui-sans-serif, system-ui, sans-serif;
+  --font-serif: var(--font-source-serif), 'Source Serif 4', 'Source Serif Pro', Georgia, serif;
   --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
 
   --color-background: rgb(var(--background));
diff --git a/app/greyscan/layout.tsx b/app/greyscan/layout.tsx
index 2f7c9b2..49f2471 100644
--- a/app/greyscan/layout.tsx
+++ b/app/greyscan/layout.tsx
@@ -3,8 +3,35 @@ import type { Metadata } from 'next'
 export const metadata: Metadata = {
   title: 'Greyscan | Greywall',
   description: 'Scan your repo and see what an unrestricted AI agent would attempt. Powered by Greywall.',
+  alternates: {
+    canonical: 'https://greywall.io/greyscan',
+  },
+  openGraph: {
+    title: 'Greyscan | Greywall',
+    description: 'Scan your repo and see what an unrestricted AI agent would attempt. Powered by Greywall.',
+    url: 'https://greywall.io/greyscan',
+    siteName: 'Greywall',
+    type: 'website',
+  },
+}
+
+const breadcrumbJsonLd = {
+  '@context': 'https://schema.org',
+  '@type': 'BreadcrumbList',
+  itemListElement: [
+    { '@type': 'ListItem', position: 1, name: 'Greywall', item: 'https://greywall.io' },
+    { '@type': 'ListItem', position: 2, name: 'Greyscan', item: 'https://greywall.io/greyscan' },
+  ],
 }
 
 export default function ExposureLayout({ children }: { children: React.ReactNode }) {
-  return children
+  return (
+    <>
+      <script
+        type="application/ld+json"
+        dangerouslySetInnerHTML={{ __html: JSON.stringify(breadcrumbJsonLd) }}
+      />
+      {children}
+    </>
+  )
 }
diff --git a/app/layout.tsx b/app/layout.tsx
index c33a4fd..d6cddac 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -1,10 +1,26 @@
 import type { Metadata } from 'next'
+import { Inter, Source_Serif_4 } from 'next/font/google'
 import './globals.css'
 
+const inter = Inter({
+  subsets: ['latin'],
+  display: 'swap',
+  variable: '--font-inter',
+})
+
+const sourceSerif = Source_Serif_4({
+  subsets: ['latin'],
+  display: 'swap',
+  variable: '--font-source-serif',
+  style: ['normal', 'italic'],
+  axes: ['opsz'],
+})
+
 export const metadata: Metadata = {
+  metadataBase: new URL('https://greywall.io'),
   title: 'Greywall: Sandbox for AI Agents',
   description:
-    'Container-free, default-deny sandboxing with observability for AI agents. Five layers of defense in one command.',
+    'Container-free, default-deny sandboxing with real-time observability for AI agents on Linux and macOS. Five kernel-enforced security layers in one command. Open source.',
   icons: {
     icon: [
       { url: '/icon.svg', type: 'image/svg+xml' },
@@ -13,6 +29,74 @@ export const metadata: Metadata = {
     ],
     apple: '/apple-icon.png',
   },
+  openGraph: {
+    title: 'Greywall: Sandbox for AI Agents',
+    description: 'Container-free, default-deny sandboxing with real-time observability for AI agents. Five kernel-enforced security layers in one command.',
+    url: 'https://greywall.io',
+    siteName: 'Greywall',
+    type: 'website',
+  },
+  twitter: {
+    card: 'summary',
+    title: 'Greywall: Sandbox for AI Agents',
+    description: 'Container-free, default-deny sandboxing with real-time observability for AI agents. Five kernel-enforced security layers in one command.',
+  },
+  alternates: {
+    canonical: 'https://greywall.io',
+  },
+}
+
+const jsonLd = {
+  '@context': 'https://schema.org',
+  '@graph': [
+    {
+      '@type': 'Organization',
+      '@id': 'https://greyhaven.co/#organization',
+      name: 'Greyhaven',
+      url: 'https://greyhaven.co',
+      logo: { '@type': 'ImageObject', url: 'https://greywall.io/icon.svg' },
+      sameAs: ['https://github.com/GreyhavenHQ'],
+    },
+    {
+      '@type': 'WebSite',
+      '@id': 'https://greywall.io/#website',
+      name: 'Greywall',
+      url: 'https://greywall.io',
+      publisher: { '@id': 'https://greyhaven.co/#organization' },
+    },
+    {
+      '@type': 'SoftwareApplication',
+      '@id': 'https://greywall.io/#software',
+      name: 'Greywall',
+      description:
+        'Container-free, default-deny sandboxing with real-time observability and dynamic controls for AI agents on Linux and macOS.',
+      applicationCategory: 'SecurityApplication',
+      operatingSystem: 'Linux, macOS',
+      url: 'https://greywall.io',
+      downloadUrl: 'https://github.com/GreyhavenHQ/greywall',
+      license: 'https://opensource.org/licenses/Apache-2.0',
+      offers: { '@type': 'Offer', price: '0', priceCurrency: 'USD' },
+      author: { '@id': 'https://greyhaven.co/#organization' },
+      featureList: [
+        'Filesystem isolation',
+        'Network isolation',
+        'Command blocking',
+        'Real-time violation monitoring',
+        'Learning mode',
+        'Syscall filtering',
+        'Dynamic allow/deny controls',
+      ],
+      isAccessibleForFree: true,
+    },
+    {
+      '@type': 'SoftwareSourceCode',
+      name: 'Greywall',
+      codeRepository: 'https://github.com/GreyhavenHQ/greywall',
+      programmingLanguage: 'Go',
+      license: 'https://opensource.org/licenses/Apache-2.0',
+      targetProduct: { '@id': 'https://greywall.io/#software' },
+    },
+  ],
 }
 
 export default function RootLayout({
@@ -21,13 +105,11 @@ export default function RootLayout({
   children: React.ReactNode
 }>) {
   return (
-    <html lang="en" className="dark">
+    <html lang="en" className={`dark ${inter.variable} ${sourceSerif.variable}`}>
       <head>
-        <link rel="preconnect" href="https://fonts.googleapis.com" />
-        <link rel="preconnect" href="https://fonts.gstatic.com" crossOrigin="anonymous" />
-        <link
-          href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;0,8..60,700;1,8..60,400;1,8..60,600;1,8..60,700&display=swap"
-          rel="stylesheet"
+        <script
+          type="application/ld+json"
+          dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
         />
       </head>
       <body className="font-sans antialiased bg-background text-foreground">
diff --git a/app/privacy/page.tsx b/app/privacy/page.tsx
new file mode 100644
index 0000000..0df2866
--- /dev/null
+++ b/app/privacy/page.tsx
@@ -0,0 +1,118 @@
+import type { Metadata } from 'next'
+
+export const metadata: Metadata = {
+  title: 'Privacy Policy | Greywall',
+  description: 'How Greywall handles your data.',
+  alternates: {
+    canonical: 'https://greywall.io/privacy',
+  },
+}
+
+export default function PrivacyPage() {
+  return (
+    <main className="min-h-screen pt-24 pb-16 px-4 sm:px-6">
+      <article className="mx-auto max-w-2xl">
+        <h1 className="font-serif text-3xl sm:text-4xl font-semibold tracking-tight mb-2">
+          Privacy Policy
+        </h1>
+        <p className="text-sm text-muted-foreground font-sans mb-12">
+          Last updated: March 19, 2026
+        </p>
+
+        <div className="space-y-10 text-muted-foreground font-serif text-base leading-relaxed">
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">Greywall (the CLI tool)</h2>
+            <p>
+              Greywall runs entirely on your machine. It does not phone home, collect telemetry,
+              or transmit any data. No analytics, no crash reports, no usage tracking. The source
+              code is open and auditable
+              at <a href="https://github.com/GreyhavenHQ/greywall" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">github.com/GreyhavenHQ/greywall</a>.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">This website (greywall.io)</h2>
+            <p className="mb-4">
+              The Greywall landing page is a static site hosted on Vercel. We do not use cookies,
+              analytics scripts, or tracking pixels. Vercel may collect minimal server logs
+              (IP address, user agent, timestamp) as part of standard web hosting.
+              See <a href="https://vercel.com/legal/privacy-policy" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">Vercel&apos;s privacy policy</a> for
+              details.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">Greyscan</h2>
+            <p className="mb-4">
+              When you use Greyscan at <a href="/greyscan" className="text-primary hover:text-primary/80 transition-colors">/greyscan</a>,
+              the following happens:
+            </p>
+            <ul className="list-disc pl-6 space-y-2">
+              <li>
+                Your browser fetches the public file tree, dependency list, and README from GitHub&apos;s
+                API directly. This data never passes through our servers during collection.
+              </li>
+              <li>
+                To generate the threat report, a summary of the repo structure (file names,
+                detected stack, dependency names, and up to 8,000 characters of the README) is
+                sent to our server and forwarded to a third-party LLM provider for analysis.
+              </li>
+              <li>
+                Results are cached in server memory for up to 24 hours to avoid redundant
+                LLM calls for the same repository, then discarded. We do not persist scan
+                results to disk or a database.
+              </li>
+              <li>
+                No repository source code is read or transmitted. Only file paths, dependency
+                names, and the public README are included.
+              </li>
+            </ul>
+          </section>
+
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">Third-party services</h2>
+            <ul className="list-disc pl-6 space-y-2">
+              <li>
+                <span className="text-foreground font-medium">GitHub API</span> &mdash; Greyscan
+                calls the GitHub REST API from your browser to fetch public repository metadata.
+                Subject to <a href="https://docs.github.com/en/site-policy/privacy-policies/github-general-privacy-statement" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">GitHub&apos;s privacy statement</a>.
+              </li>
+              <li>
+                <span className="text-foreground font-medium">LLM provider</span> &mdash; Repo
+                summaries sent through Greyscan are processed by a third-party LLM to generate
+                threat reports. The provider may retain data per their own policies.
+              </li>
+              <li>
+                <span className="text-foreground font-medium">Vercel</span> &mdash; Hosting
+                infrastructure. See <a href="https://vercel.com/legal/privacy-policy" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">Vercel&apos;s privacy policy</a>.
+              </li>
+            </ul>
+          </section>
+
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">Security</h2>
+            <p>
+              If you discover a security issue in Greywall or this website, please report it
+              via <a href="https://github.com/GreyhavenHQ/greywall/security" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">GitHub Security Advisories</a>.
+              We will respond promptly.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="font-serif text-xl font-semibold text-foreground mb-3">Contact</h2>
+            <p>
+              For questions about this policy,
+              reach us at <a href="https://greyhaven.co/contact" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">greyhaven.co/contact</a>.
+            </p>
+          </section>
+        </div>
+
+        <div className="mt-16 pt-8 border-t border-border/30">
+          <a href="/" className="text-sm text-muted-foreground hover:text-foreground transition-colors font-sans">
+            &larr; Back to Greywall
+          </a>
+        </div>
+      </article>
+    </main>
+  )
+}
diff --git a/app/sitemap.ts b/app/sitemap.ts
new file mode 100644
index 0000000..e192578
--- /dev/null
+++ b/app/sitemap.ts
@@ -0,0 +1,9 @@
+import type { MetadataRoute } from 'next'
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  return [
+    { url: 'https://greywall.io', lastModified: new Date(), changeFrequency: 'weekly', priority: 1 },
+    { url: 'https://greywall.io/greyscan', lastModified: new Date(), changeFrequency: 'monthly', priority: 0.8 },
+    { url: 'https://greywall.io/privacy', lastModified: new Date(), changeFrequency: 'yearly', priority: 0.3 },
+  ]
+}
diff --git a/components/agents.tsx b/components/agents.tsx
index fa8eeeb..5c252b3 100644
--- a/components/agents.tsx
+++ b/components/agents.tsx
@@ -1,3 +1,4 @@
+import Image from 'next/image'
 import { CheckCircle2 } from 'lucide-react'
 
 const agents = [
@@ -42,7 +43,7 @@ export function Agents() {
               rel="noopener noreferrer"
               className="group flex items-center gap-2.5 sm:gap-3 p-3 sm:p-4 rounded-lg border border-border/40 bg-card/30 hover:border-primary/20 hover:bg-card/50 transition-all cursor-pointer"
             >
-              <img
+              <Image
                 src={`https://github.com/${agent.org}.png?size=64`}
                 alt={agent.name}
                 width={28}
diff --git a/components/comparison.tsx b/components/comparison.tsx
index 0614a10..9323ae6 100644
--- a/components/comparison.tsx
+++ b/components/comparison.tsx
@@ -109,22 +109,22 @@ const rows: Row[] = [
 function CellIcon({ value }: { value: CellValue }) {
   if (value === 'yes') {
     return (
-      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-green-400/10">
-        <Check className="h-3 w-3 text-green-400" />
+      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-green-400/10" aria-label="Supported">
+        <Check className="h-3 w-3 text-green-400" aria-hidden="true" />
       </span>
     )
   }
   if (value === 'no') {
     return (
-      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-red-400/10">
-        <X className="h-3 w-3 text-red-400/70" />
+      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-red-400/10" aria-label="Not supported">
+        <X className="h-3 w-3 text-red-400/70" aria-hidden="true" />
       </span>
     )
   }
   if (value === 'partial') {
     return (
-      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-yellow-400/10">
-        <Minus className="h-3 w-3 text-yellow-400/70" />
+      <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-yellow-400/10" aria-label="Partial support">
+        <Minus className="h-3 w-3 text-yellow-400/70" aria-hidden="true" />
       </span>
     )
   }
@@ -214,19 +214,19 @@ export function Comparison() {
         <div className="mt-6 flex flex-wrap items-center gap-5 text-xs font-sans text-muted-foreground">
           <div className="flex items-center gap-1.5">
             <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-green-400/10">
-              <Check className="h-3 w-3 text-green-400" />
+              <Check className="h-3 w-3 text-green-400" aria-hidden="true" />
             </span>
             Supported
           </div>
           <div className="flex items-center gap-1.5">
             <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-yellow-400/10">
-              <Minus className="h-3 w-3 text-yellow-400/70" />
+              <Minus className="h-3 w-3 text-yellow-400/70" aria-hidden="true" />
             </span>
             Partial
           </div>
           <div className="flex items-center gap-1.5">
             <span className="inline-flex items-center justify-center w-5 h-5 rounded-full bg-red-400/10">
-              <X className="h-3 w-3 text-red-400/70" />
+              <X className="h-3 w-3 text-red-400/70" aria-hidden="true" />
             </span>
             Not supported
           </div>
diff --git a/components/footer.tsx b/components/footer.tsx
index 10104a5..0e2ca46 100644
--- a/components/footer.tsx
+++ b/components/footer.tsx
@@ -32,6 +32,12 @@ export function Footer() {
           >
             greyhaven.co
           </a>
+          <a
+            href="/privacy"
+            className="hover:text-foreground transition-colors"
+          >
+            Privacy
+          </a>
           <span>Apache 2.0</span>
         </div>
       </div>
diff --git a/components/observability.tsx b/components/observability.tsx
index 33fb034..9dac6d6 100644
--- a/components/observability.tsx
+++ b/components/observability.tsx
@@ -1,6 +1,7 @@
 'use client'
 
 import { useState, useEffect, useRef } from 'react'
+import Image from 'next/image'
 import { Eye } from 'lucide-react'
 
 const slides = [
@@ -97,20 +98,26 @@ export function Observability() {
           {/* Screenshot with crossfade */}
           <div className="relative rounded-lg border border-border/40 overflow-hidden bg-white">
             {/* Hidden reference image to lock container height */}
-            <img
+            <Image
               src={slides[0].src}
               alt=""
               aria-hidden="true"
+              width={1977}
+              height={1444}
               className="w-full h-auto invisible"
+              priority
             />
             {slides.map((slide, i) => (
-              <img
+              <Image
                 key={slide.label}
                 src={slide.src}
                 alt={slide.alt}
+                width={slide.src === '/pending_requests.png' ? 1752 : 1977}
+                height={slide.src === '/pending_requests.png' ? 1216 : 1444}
                 className={`absolute inset-0 w-full h-full object-contain object-top transition-opacity duration-700 ${
                   i === active ? 'opacity-100' : 'opacity-0'
                 }`}
+                priority={i === 0}
               />
             ))}
           </div>
diff --git a/next.config.mjs b/next.config.mjs
index b8cc775..88e8ace 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -4,7 +4,6 @@ const nextConfig = {
     ignoreBuildErrors: true,
   },
   images: {
-    unoptimized: true,
     remotePatterns: [
       {
         protocol: 'https',
@@ -12,6 +11,19 @@ const nextConfig = {
       },
     ],
   },
+  async headers() {
+    return [
+      {
+        source: '/(.*)',
+        headers: [
+          { key: 'X-Frame-Options', value: 'DENY' },
+          { key: 'X-Content-Type-Options', value: 'nosniff' },
+          { key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' },
+          { key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()' },
+        ],
+      },
+    ]
+  },
 }
 
 export default nextConfig
diff --git a/public/llms.txt b/public/llms.txt
new file mode 100644
index 0000000..46b3862
--- /dev/null
+++ b/public/llms.txt
@@ -0,0 +1,30 @@
+# Greywall
+
+> Container-free, default-deny sandboxing with real-time observability for AI agents on Linux and macOS.
+
+Greywall is an open-source CLI tool that wraps any AI agent (Claude Code, Codex, Cursor, Aider, and others) in a kernel-enforced sandbox. It uses five security layers on Linux (Bubblewrap namespaces, Landlock filesystem, Seccomp BPF syscall filtering, eBPF monitoring, and TUN+SOCKS5 network proxy) and four on macOS (Seatbelt sandbox, filesystem policy, log stream monitor, and proxy-based network control). Default-deny policy means nothing is accessible unless explicitly granted. Built by Greyhaven, licensed Apache 2.0.
+
+## Key Features
+- Filesystem isolation (kernel-enforced read/write/deny per path)
+- Network isolation (all traffic routed through GreyProxy)
+- Command blocking (detects blocked commands in pipes, chains, nested shells)
+- Real-time violation monitoring (every denial captured with full context)
+- Learning mode (auto-generates least-privilege templates from observed access)
+- Syscall filtering (blocks 27+ dangerous system calls via Seccomp BPF)
+- Dynamic allow/deny controls (adjust policies live without restarting)
+
+## Links
+- [Homepage](https://greywall.io)
+- [Documentation](https://docs.greywall.io/)
+- [GitHub](https://github.com/GreyhavenHQ/greywall)
+- [Greyhaven (parent company)](https://greyhaven.co)
+
+## Install
+- Homebrew: `brew tap greyhavenhq/tap && brew install greywall`
+- Curl: `curl -fsSL https://raw.githubusercontent.com/GreyhavenHQ/greywall/main/install.sh | sh`
+- Go: `go install github.com/GreyhavenHQ/greywall/cmd/greywall@latest`
+
+## Compatibility
+Works with: Claude Code, Codex, Cursor, Aider, Goose, Amp, Gemini CLI, Cline, OpenCode, Copilot.
+Platforms: Linux (3.8+), macOS.
+License: Apache 2.0.
diff --git a/public/robots.txt b/public/robots.txt
new file mode 100644
index 0000000..8fc6a7d
--- /dev/null
+++ b/public/robots.txt
@@ -0,0 +1,26 @@
+User-agent: *
+Allow: /
+Disallow: /api/
+
+User-agent: GPTBot
+Allow: /
+
+User-agent: OAI-SearchBot
+Allow: /
+
+User-agent: ClaudeBot
+Allow: /
+
+User-agent: PerplexityBot
+Allow: /
+
+User-agent: CCBot
+Disallow: /
+
+User-agent: anthropic-ai
+Disallow: /
+
+User-agent: cohere-ai
+Disallow: /
+
+Sitemap: https://greywall.io/sitemap.xml