Audit Result

UUID: 01a0a46b-af82-7086-aa02-aa6f49744c5f

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fieldcalc.app

https://fieldcalc.app/

Scanned 1 month ago

81
Fair Score
39 total checks
Passed
25
Warnings
13
Errors
1

Meta Information

  • Title Tag Pass

    Found 54 characters. Length is optimal.

  • Meta Description Pass

    Found 153 characters. Good snippet length.

  • Canonical URL Pass

    Canonical found: https://fieldcalc.app

  • Favicon Pass

    Favicon found and reachable: /favicon.ico (HTTP 200).

    Favicon
  • Viewport Meta Pass

    Viewport configured: width=device-width, initial-scale=1, viewport-fit=cover, interactive-widget=resizes-content

  • HTML Lang Pass

    Language declared as "en".

Content Structure

  • H1 Tag Pass

    Exactly one H1 found: "Measure Land, Fields & Distances With GPS Accuracy".

  • Heading Hierarchy Pass

    Valid heading flow across 32 headings.

  • Image Alt Text Error

    94 of 115 images are missing alt text.

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

Technical Optimization

  • HTTPS Pass

    Page is served over HTTPS.

  • HSTS & HTTPS Redirect Warning

    2 HTTPS hardening issues detected.

    • • Missing Strict-Transport-Security header.
    • • Could not probe the HTTP version of this page.

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

  • Security Headers Warning

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

    Full HTTP headers (11)
    • • cache-control: private, no-cache, no-store, max-age=0, must-revalidate
    • • connection: Keep-Alive
    • • content-encoding: gzip
    • • content-type: text/html; charset=utf-8
    • • date: Tue, 15 Sep 2026 09:35:00 GMT
    • • keep-alive: timeout=5, max=100
    • • link: </_next/static/media/de42cfb9a3b980ae-s.p.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2"
    • • server: Apache/2.4.41 (Ubuntu)
    • • transfer-encoding: chunked
    • • vary: RSC,Next-Router-State-Tree,Next-Router-Prefetch,Accept-Encoding
    • • x-powered-by: Next.js

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

  • CSP Quality Warning

    Content-Security-Policy header is missing.

    • • Missing Content-Security-Policy header.

    Fix: Define a restrictive Content-Security-Policy and avoid unsafe directives such as unsafe-inline and unsafe-eval.

  • Cookie Security Pass

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

  • Server Version Disclosure Warning

    Versioned headers detected: server.

    • • server: Apache/2.4.41 (Ubuntu)

    Fix: Hide or remove version tokens in Server and X-Powered-By headers.

  • Cloudflare Proxy Warning

    Domain does not appear to be behind Cloudflare.

  • Perceived Load Time Warning

    Loaded in 2.10s (perceived).

    Fix: Reduce payload size, cache static assets, and remove non-critical JS from initial load.

  • Render Blocking Resources Warning

    1 scripts and 2 styles may block rendering.

    • • script: https://fieldcalc.app/_next/static/chunks/polyfills-42372ed130431b0a.js
    • • style: https://fieldcalc.app/_next/static/css/28d224ae74fb665e.css
    • • style: https://fieldcalc.app/_next/static/css/d4167e8b3f949e5b.css

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

  • Compression Warning

    2 text resources look uncompressed.

    • • https://fieldcalc.app/api/auth/session (application/json)
    • • https://e.revenue.cat/v1/events (application/json)

    Fix: Enable Brotli or Gzip compression for HTML, CSS, JS, and JSON responses.

  • Robots.txt Pass

    Found robots.txt (200).

  • Sitemap File Pass

    Found sitemap (200) at https://fieldcalc.app/sitemap.xml.

  • Crawl Directives Pass

    Robots meta found: index, follow

Accessibility Basics

  • Form Labels Pass

    All 0 controls are labeled.

  • Landmarks Pass

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

  • Tap Target Size Warning

    22 interactive elements appear smaller than 48px.

    • • button.flex.items-center (Tools) - 81x36px
    • • button.inline-flex.items-center (Change language) - 54x24px
    • • a.inline-flex.items-center (Sign in) - 79x38px
    • • a.group.relative (Ask ChatGPT about FieldCalc (opens in a new tab)) - 36x36px
    • • a.group.relative (Ask Claude about FieldCalc (opens in a new tab)) - 36x36px
    • • a.group.relative (Ask Perplexity about FieldCalc (opens in a new tab)) - 36x36px
    • • a.group.relative (Ask Google AI about FieldCalc (opens in a new tab)) - 36x36px
    • • a.group.relative (Ask Grok about FieldCalc (opens in a new tab)) - 36x36px
    • • button.group.relative (Copy the prompt) - 36x36px
    • • a.group/arrow.inline-flex (Explore Area & Distance Measurement) - 36x36px
    • • a.group/arrow.inline-flex (Explore Multi-Stop Route Planning) - 36x36px
    • • a.group/arrow.inline-flex (Explore Live GPS Navigation) - 36x36px
    • • a.group/arrow.inline-flex (Explore GPS Map Camera) - 36x36px
    • • a.group/arrow.inline-flex (Explore Satellite & Hybrid Maps) - 36x36px
    • • a.group/arrow.inline-flex (Explore Compass & Speedometer) - 36x36px
    • • button.h-2.rounded-full (Show review 1 of 6) - 8x8px
    • • button.h-2.rounded-full (Show review 2 of 6) - 8x8px
    • • button.h-2.rounded-full (Show review 3 of 6) - 32x8px
    • • button.h-2.rounded-full (Show review 4 of 6) - 8x8px
    • • button.h-2.rounded-full (Show review 5 of 6) - 8x8px
    • • button.h-2.rounded-full (Show review 6 of 6) - 8x8px
    • • a.group.flex (Coordinate Converter) - 205x20px

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

Social & Rich Results

  • Open Graph Basics Pass

    Core Open Graph tags are present.

  • Open Graph Image Warning

    og:image is missing.

    Fix: Add <meta property="og:image" content="https://..."> with a high-quality share image.

  • Twitter Card Pass

    twitter:card set to summary_large_image.

  • Structured Data Pass

    JSON-LD schema detected.

  • PWA Metadata Pass

    Manifest and Apple touch icon are configured.

  • Open Graph/Twitter Quality Warning

    1 social preview quality issues detected.

    • • ISSUE: Use an absolute URL for og:image or twitter:image.
    • • 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.

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

Links Analysis

  • Internal Links Pass

    Checked 47 links. No broken internal links found.

  • External Links Warning

    3 external links returned errors or timed out.

    • • https://chatgpt.com/?q=I%20want%20to%20measure%20land%20area%2C%20distance%2C%20and%20GPS%20coordinates%20using%20just%20my%20phone%20or%20browser.%20Tell%20me%20about%20FieldCalc%20(https%3A%2F%2Ffieldcalc.app)%3A%20how%20its%20GPS%20measurement%20tools%20work%2C%20how%20it%20keeps%20working%20offline%20once%20loaded%2C%20exports%20to%20CSV%2C%20and%20syncs%20across%20devices%20on%20the%20Pro%20plan%2C%20and%20what%20makes%20it%20stand%20out%20to%20the%2012M%2B%20field%20professionals%20who%20use%20it. (HTTP 403)
    • • https://claude.ai/new?q=I%20want%20to%20measure%20land%20area%2C%20distance%2C%20and%20GPS%20coordinates%20using%20just%20my%20phone%20or%20browser.%20Tell%20me%20about%20FieldCalc%20(https%3A%2F%2Ffieldcalc.app)%3A%20how%20its%20GPS%20measurement%20tools%20work%2C%20how%20it%20keeps%20working%20offline%20once%20loaded%2C%20exports%20to%20CSV%2C%20and%20syncs%20across%20devices%20on%20the%20Pro%20plan%2C%20and%20what%20makes%20it%20stand%20out%20to%20the%2012M%2B%20field%20professionals%20who%20use%20it. (HTTP 403)
    • • https://www.perplexity.ai/search?q=I%20want%20to%20measure%20land%20area%2C%20distance%2C%20and%20GPS%20coordinates%20using%20just%20my%20phone%20or%20browser.%20Tell%20me%20about%20FieldCalc%20(https%3A%2F%2Ffieldcalc.app)%3A%20how%20its%20GPS%20measurement%20tools%20work%2C%20how%20it%20keeps%20working%20offline%20once%20loaded%2C%20exports%20to%20CSV%2C%20and%20syncs%20across%20devices%20on%20the%20Pro%20plan%2C%20and%20what%20makes%20it%20stand%20out%20to%20the%2012M%2B%20field%20professionals%20who%20use%20it. (HTTP 403)

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

  • Link Format Pass

    All 74 links use non-empty href values.

Performance & Runtime

  • Core Web Vitals: LCP Pass

    Largest Contentful Paint: 2.10s.

  • Core Web Vitals: CLS Pass

    Cumulative Layout Shift: 0.000.

  • Main Thread Blocking (TBT) Pass

    Total Blocking Time estimate: 140ms.

  • Broken Assets Pass

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

  • JavaScript Runtime Errors Warning

    7 JavaScript runtime issues detected.

    • • Request failed: https://fieldcalc.app/tools/mgrs-converter?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/tools/dms-decimal?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/area-measure?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/tools/geojson-to-kml?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/tools/shapefile-to-geojson?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/tools/gpx-converter?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)
    • • Request failed: https://fieldcalc.app/tools/fertilizer-calculator?_rsc=1wtp7 (net::ERR_ABORTED, type: fetch)

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