Audit Result

Found 54 characters. Length is optimal.

Missing meta description.

Fix: Add <meta name="description" content="..."> in <head> with a clear page summary.

Canonical found: https://go.dev/doc/tutorial/random-greeting

Favicon found and reachable: /images/favicon-gopher.png (HTTP 200).

Viewport configured: width=device-width, initial-scale=1

Language declared as "en".

Exactly one H1 found: "Return a random greeting".

Valid heading flow across 1 headings.

16 of 23 images are missing alt text.

Fix: Add meaningful alt attributes to all informative images for accessibility and image SEO.

Page is served over HTTPS.

1 HTTPS hardening issues detected.

• • Could not probe the HTTP version of this page.
• • Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.

Missing: x-frame-options, x-content-type-options, referrer-policy.

Fix: Add the missing security headers at your reverse proxy or application layer.

1 CSP hardening issues detected.

• • CSP is missing a base-uri restriction.
• • Content-Security-Policy: connect-src 'self' www.google-analytics.com stats.g.doubleclick.net ; default-src 'self' ; font-src 'self' fonts.googleapis.com fonts.gstatic.com data: ; frame-ancestors 'self' ; frame-src 'self' www.google.com feedback.googleusercontent.com www.googletagmanager.com scone-pa.clients6.google.com www.youtube.com player.vimeo.com ; img-src 'self' www.google.com www.google-analytics.com ssl.gstatic.com www.gstatic.com gstatic.com data: * ; object-src 'none' ; script-src 'self' 'sha256-n6OdwTrm52KqKm6aHYgD0TFUdMgww4a0GQlIAVrMzck=' 'sha256-4ryYrf7Y5daLOBv0CpYtyBIcJPZkRD2eBPdfqsN3r1M=' 'sha256-sVKX08+SqOmnWhiySYk3xC7RDUgKyAkmbXV2GWts4fo=' www.google.com apis.google.com www.gstatic.com gstatic.com support.google.com www.googletagmanager.com www.google-analytics.com ssl.google-analytics.com tagmanager.google.com ; style-src 'self' 'unsafe-inline' fonts.googleapis.com feedback.googleusercontent.com www.gstatic.com gstatic.com tagmanager.google.com ;

Fix: Tighten Content-Security-Policy by removing unsafe directives and adding object-src, base-uri, and frame-ancestors restrictions.

No first-party cookies were set during the initial page load.

Server response headers do not expose version tokens.

Domain does not appear to be behind Cloudflare.

Loaded in 0.21s (perceived).

1 scripts and 2 styles may block rendering.

• • script: https://go.dev/js/site.js
• • style: https://fonts.googleapis.com/css?family=Material+Icons
• • style: https://go.dev/css/styles.css

Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.

Text-like assets appear compressed.

Found robots.txt (200).

Sitemap missing or inaccessible at https://go.dev/sitemap.xml (404).

Fix: Publish a sitemap.xml and reference it in robots.txt with: Sitemap: https://go.dev/sitemap.xml

No robots meta tag defined.

Fix: Add <meta name="robots" content="index,follow"> (or the intended directive) in <head>.

All 0 controls are labeled.

Header, nav, main, and footer landmarks are present.

20 interactive elements appear smaller than 48px.

• • a - 118x32px
• • a.skip-to-content-link (Skip to main content) - 149x22px
• • a (Why Go navigate_next) - 384x41px
• • a (Case Studies) - 384x41px
• • a (Use Cases) - 384x41px
• • a (Security) - 384x41px
• • a (Learn) - 384x41px
• • a (Docs navigate_next) - 384x41px
• • a (Go Spec) - 384x41px
• • a (Go User Manual) - 384x41px
• • a (Standard library) - 384x41px
• • a (Release Notes) - 384x41px
• • a (Effective Go) - 384x41px
• • a (Packages) - 384x41px
• • a (Community navigate_next) - 384x41px
• • a (Recorded Talks) - 384x41px
• • a (Go blog) - 384x41px
• • a (Go project) - 384x41px
• • a.Header-socialIcon - 336x41px
• • a.Header-socialIcon - 336x41px

Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.

Missing og:title or og:description.

Fix: Add og:title and og:description tags to control social preview text.

og:image is present and absolute.

twitter:card set to summary.

No JSON-LD schema scripts found.

Fix: Add JSON-LD structured data matching your page type (Organization, Article, Product, etc.).

Manifest or Apple touch icon is missing.

Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.

2 social preview quality issues detected.

• • ISSUE: og:description should typically be between 50 and 200 characters.
• • ISSUE: twitter:card should be summary_large_image for richer previews.
• • GUIDELINE: Optimal og:title length: 40-60 characters (acceptable: 10-70).
• • GUIDELINE: Optimal og:description length: 110-160 characters (acceptable: 50-200).
• • GUIDELINE: Optimal preview image size: 1200x630 pixels.
• • GUIDELINE: Optimal preview image aspect ratio: 1.91:1.
• • GUIDELINE: Optimal preview image file size: under 5 MB.
• • GUIDELINE: Recommended twitter:card: summary_large_image.
• • MEASURED: Image size: 0.21 MB
• • MEASURED: Image dimensions: 1262x733

Fix: Use absolute OG/Twitter URLs, keep metadata lengths in recommended ranges, and provide a preview image near 1200x630 under 5MB.

Checked 55 links. No broken internal links found.

5 external links returned errors or timed out.

• • https://bsky.app/profile/golang.org (HTTP 404)
• • https://www.reddit.com/r/golang/ (HTTP 403)
• • https://invite.slack.golangbridge.org/ (HTTP 403)
• • https://stackoverflow.com/questions/tagged/go?tab=Newest (HTTP 403)
• • https://reddit.com/r/golang (HTTP 403)

Fix: Replace dead external URLs or point to working alternatives.

9 links are empty, invalid, or placeholder-only.

• • href="#" text="Why Go arrow_drop_down"
• • href="#" text="Docs arrow_drop_down"
• • href="#" text="Community arrow_drop_down"
• • href="#" text="Why Go navigate_next"
• • href="#" text="navigate_beforeWhy Go"
• • href="#" text="Docs navigate_next"
• • href="#" text="navigate_beforeDocs"
• • href="#" text="Community navigate_next"
• • href="#" text="navigate_beforeCommunity"

Fix: Replace empty/#/javascript href values with real destinations or use buttons for non-navigation actions.

Largest Contentful Paint: 0.21s.

Cumulative Layout Shift: 0.022.

Total Blocking Time estimate: 14ms.

No failed CSS/JS/image/font/media requests detected.

5 JavaScript runtime issues detected.

• • Executing inline script violates the following Content Security Policy directive 'script-src 'self' 'sha256-n6OdwTrm52KqKm6aHYgD0TFUdMgww4a0GQlIAVrMzck=' 'sha256-4ryYrf7Y5daLOBv0CpYtyBIcJPZkRD2eBPdfqsN3r1M=' 'sha256-sVKX08+SqOmnWhiySYk3xC7RDUgKyAkmbXV2GWts4fo=' www.google.com apis.google.com www.gstatic.com gstatic.com support.google.com www.googletagmanager.com www.google-analytics.com ssl.google-analytics.com tagmanager.google.com'. Either the 'unsafe-inline' keyword, a hash ('sha256-2O3RIgEAbebD1O6Ms1wN4A5BuVSpPWuOlJUvIgsK0Iw='), or a nonce ('nonce-...') is required to enable inline execution. The action has been blocked. [https://www.googletagmanager.com/gtm.js?id=GTM-W8MVQXG:952]
• • Connecting to 'https://www.google.com/ccm/collect?rcb=2&frm=0&apvc=1&ae=g&auid=483258231.1789234405&dt=Return%20a%20random%20greeting%20-%20The%20Go%20Programming%20Language&en=page_view&dl=https%3A%2F%2Fgo.dev%2Fdoc%2Ftutorial%2Frandom-greeting&scrsrc=www.googletagmanager.com&rnd=857859652.1789234405&navt=n&npa=0&ep.ads_data_redaction=0&gtm=45He6992h1v830425926za200zd830425926xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=115938466~115938468~117227716~117776795~118897920~118897930~120385422~120469145~120469153&tft=1789234405130&tfd=331&fmt=8' violates the following Content Security Policy directive: "connect-src 'self' www.google-analytics.com stats.g.doubleclick.net". The action has been blocked. [https://www.googletagmanager.com/gtm.js?id=GTM-W8MVQXG:413]
• • Fetch API cannot load https://www.google.com/ccm/collect?rcb=2&frm=0&apvc=1&ae=g&auid=483258231.1789234405&dt=Return%20a%20random%20greeting%20-%20The%20Go%20Programming%20Language&en=page_view&dl=https%3A%2F%2Fgo.dev%2Fdoc%2Ftutorial%2Frandom-greeting&scrsrc=www.googletagmanager.com&rnd=857859652.1789234405&navt=n&npa=0&ep.ads_data_redaction=0&gtm=45He6992h1v830425926za200zd830425926xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=115938466~115938468~117227716~117776795~118897920~118897930~120385422~120469145~120469153&tft=1789234405130&tfd=331&fmt=8. Refused to connect because it violates the document's Content Security Policy. [https://www.googletagmanager.com/gtm.js?id=GTM-W8MVQXG:413]
• • Connecting to 'https://ad.doubleclick.net/ccm/s/collect?auid=483258231.1789234405&gtm=45He6992h1v830425926za200zd830425926xea&fmt=8' violates the following Content Security Policy directive: "connect-src 'self' www.google-analytics.com stats.g.doubleclick.net". The action has been blocked. [https://www.googletagmanager.com/gtm.js?id=GTM-W8MVQXG:413]
• • Fetch API cannot load https://ad.doubleclick.net/ccm/s/collect?auid=483258231.1789234405&gtm=45He6992h1v830425926za200zd830425926xea&fmt=8. Refused to connect because it violates the document's Content Security Policy. [https://www.googletagmanager.com/gtm.js?id=GTM-W8MVQXG:413]

Fix: Fix JS files returning 404/failed requests and resolve the listed runtime exceptions.