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https://geogebra.org

Content

· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
95
GRADE
A
FIX
1
REVIEW
1
PASS
3
INFO
0
Checks
5
3 PASS 1 REVIEW 1 FIX
D
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
FIX

Brand Presence

Your brand name differs across channels — visitors see inconsistent identity.

D

45/100

Site name appears as

Page titleDownload_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917
og:site_nameGeoGebra
twitter:site—
Organization.name—

Inconsistent — names differ across channels

Brand assets

Favicon

0/15

Social share image

20/20

og:image + twitter:image set

Meta completeness

20/20

Organization schema

0/15

Contact info discoverable

0/10

no contact info discoverable

Findings

  • Brand name differs across channels — users see inconsistent identity
  • No favicon link tags detected — browsers fall back to the generic globe
  • No Organization schema — Google can't render your logo in the knowledge panel
  • No discoverable contact info — trust signal is weak, legal risk is higher in regulated regions

How consistently your brand appears across channels — shared link previews, structured data, favicon, contact info.

C
Structured Data
Action
1 JSON-LD block(s) found — some improvements recommended.
REVIEW
1 JSON-LD block(s) found — some improvements recommended.
Critical::
Malformed JSON-LD block #1
JSON parse error: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https://schema.org\n\t^...............................\n"

JSON parse error: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https://schema.org\n\t^...............................\n"

Why this matters

JSON-LD block fails to parse — Google ignores the entire block, so structured data effectively isn't there.

Learn more ▾

Common causes: trailing comma, single quotes instead of double, unescaped quote in a string value. Validate at https://validator.schema.org/ or Search Console's Rich Results Test.

Source: schema.org / Google Search Central

JSON-LD Blocks

Block 1 : MathSolver
0 properties Invalid
Invalid JSON: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https://schema.org\n\t^...............................\n"
[
  {
    "@context": "https://schema.org",
    "@type": [
      "MathSolver",
      "LearningResource"
    ],
    "name": "GeoGebra Math Solver",
    "url": "https://www.geogebra.org",
    "usageInfo": "https://www.geogebra.org/privacy",
    "inLanguage": "en",
    "potentialAction": [
      {
        "@type": "SolveMathAction",
        "target": "https://www.geogebra.org/solver/en/results/{math_expression_string}?from=google",
        "mathExpression-input": "required name=math_expression_string",
        "eduQuestionType": [
          "Trigonometry",
          "Quadratic Inequality",
          "Rational Inequality",
          "Derivative",
          "Radical Equation",
          "Function",
          "Absolute Value Equation",
          "Polynomial Equation",
          "Rational Equation",
          "Rational Expression",
          "System of Equations",
          "Linear Equation",
          "Quadratic Equation",
          "Algebra",
          "Biquadratic Equation",
          "Linear Inequality",
          "Polynomial Expression",
          "Arithmetic",
          "Quadratic Expression",
          "Exponential Equation"
        ]
      }
    ],
    "learningResourceType": "Math solver"
  },
  {
    "@context": "https://schema.org",
    "@type": [
      "MathSolver",
      "LearningResource"
    ],
    "name": "GeoGebra Math Solver",
    "url": "https://www.geogebra.org",
    "usageInfo": "https://www.geogebra.org/privacy",
    "inLanguage": "de",
    "potentialAction": [
      {
        "@type": "SolveMathAction",
        "target": "https://www.geogebra.org/solver/de/results/{math_expression_string}?from=google",
        "mathExpression-input": "required name=math_expression_string",
        "eduQuestionType": [
          "Trigonometry",
          "Quadratic Inequality",
          "Rational Inequality",
          "Derivative",
          "Radical Equation",
          "Function",
          "Absolute Value Equation",
          "Polynomial Equation",
          "Rational Equation",
          "Rational Expression",
          "System of Equations",
          "Linear Equation",
          "Quadratic Equation",
          "Algebra",
          "Biquadratic Equation",
          "Linear Inequality",
          "Polynomial Expression",
          "Arithmetic",
          "Quadratic Expression",
          "Exponential Equation"
        ]
      }
    ],
    "learningResourceType": "Math solver"
  }
]
A+
Mixed Content
No mixed content detected — all resources use HTTPS.
PASS
No mixed content detected — all resources use HTTPS.
Info::
No mixed content detected — all resources use HTTPS
A+
Open Graph
Open Graph tags are well configured for social sharing.
PASS
Open Graph tags are well configured for social sharing.
Info::
og:title is long (95 characters)
Titles over 60 characters may be truncated in social sharing previews.
Got: 95 chars Expected: 25–60 chars
URL: 95 chars

Titles over 60 characters may be truncated in social sharing previews.

Expected: 25–60 chars
Why this matters

og:title borderline-too-long — Facebook/LinkedIn may truncate. Aim for ~60-70 characters max.

Source: Open Graph Protocol

Preview

geogebra.org

GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers

Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more

Preview quality · Twitter/X A+ · 95/100

Title will be truncated (97 chars / 70 max)

  • twitter:card — summary_large_image
  • twitter:title — GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
  • twitter:description — Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
  • twitter:image — https://www.geogebra.org/sp-assets/assets/images/ogImage.c3863704.png

  • Title will be truncated on Twitter/X (97 chars, max 70)

    → Shorten the title to ≤70 characters

GEOGEBRA.ORG

GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers

Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more

Preview quality · Facebook A+ · 95/100

Title will be truncated (97 chars / 60 max)

  • og:title — GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
  • og:description — Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
  • og:image — https://www.geogebra.org/sp-assets/assets/images/ogImage.c3863704.png
  • og:type — website
  • og:url — https://www.geogebra.org
  • og:site_name — GeoGebra

  • Title will be truncated on Facebook (97 chars, max 60)

    → Shorten og:title to ≤60 characters

  • og:image is below recommended size (200×200)

    → Upload an image ≥1200×630 for the large preview card

GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers

geogebra.org

Preview quality · LinkedIn A+ · 100/100
  • og:title — GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
  • og:description — Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
  • og:image — https://www.geogebra.org/sp-assets/assets/images/ogImage.c3863704.png

geogebra.org

GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers

Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more

Preview quality · Slack A+ · 100/100
  • og:title — GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
  • og:description — Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
  • og:image — https://www.geogebra.org/sp-assets/assets/images/ogImage.c3863704.png

Social preview quality

Averaged across Twitter/X, Facebook, LinkedIn, and Slack.

A+ · 97/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title———
twitter:description———
twitter:image———
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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