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https://uni-frankfurt.de

Content

· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
2
PASS
2
INFO
0
Checks
5
2 PASS 2 REVIEW 1 FIX
F
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
FIX

Brand Presence

Partial brand coverage — a few channels are missing brand signals.

F

34/100

Site name appears as

Page titleResearch, Study, Transfer
og:site_name—
twitter:site—
Organization.name—

Consistent

Brand assets

Favicon

15/15

covers multiple sizes + apple-touch-icon

Social share image

0/20

Meta completeness

14/20

Organization schema

0/15

Contact info discoverable

0/10

no contact info discoverable

Findings

  • Missing brand name in: og:site_name, twitter:site, Organization.name
  • No social share image — shared links render as bare URLs
  • og:image missing
  • 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
Open Graph
Action
Open Graph tags are partially configured — some improvements recommended.
REVIEW
Open Graph tags are partially configured — some improvements recommended.
Warning::
Missing og:image
The og:image tag provides a preview image for social sharing.
Info::
Missing og:url
The og:url tag specifies the canonical URL for the shared content.
Info::
Missing og:site_name
The og:site_name tag displays the website name in social previews.

The og:image tag provides a preview image for social sharing.

Why this matters

No og:image means social shares are imageless — measurably less engaging than image-cards across every major platform.

Learn more ▾

Twitter, Facebook, and LinkedIn all use og:image (or twitter:image as a fallback) for share-card thumbnails. Without one, the post renders as a text-only card. A 1200x630px image (Twitter's preferred size) covers all platforms.

Source: Open Graph Protocol

The og:url tag specifies the canonical URL for the shared content.

Why this matters

Without og:url, social platforms infer the canonical URL — often picking a tracking-param variant that pollutes share counts.

Learn more ▾

og:url tells the social platform which URL to count this share against. Without it, platforms use the literal URL the user pasted (which may include utm_* parameters, ref codes, etc.). Setting og:url to the canonical form keeps share-count attribution clean.

Source: Open Graph Protocol

The og:site_name tag displays the website name in social previews.

Why this matters

Without og:site_name, social cards omit the brand attribution — users see the post but not who published it.

Learn more ▾

og:site_name appears in the social card chrome (above the title in Facebook/LinkedIn previews). Without it, posts read as anonymous URLs. Set it to your brand name to get free attribution on every share.

Source: Open Graph Protocol

Preview

No image set

uni-frankfurt.de

Goethe University Frankfurt – Research, Study, Transfer

Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for students and researchers.

Preview quality · Twitter/X C · 65/100
  • twitter:card — summary
  • twitter:title — Goethe University Frankfurt – Research, Study, Transfer
  • twitter:description — Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for stud...
  • twitter:image — Add twitter:image — preview card without an image looks broken

  • No preview image for Twitter/X

    → Add og:image or twitter:image (≥300×157 for summary_large_image)

No image set

UNI-FRANKFURT.DE

Goethe University Frankfurt – Research, Study, Transfer

Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for students and researchers.

Preview quality · Facebook F · 35/100
  • og:title — Goethe University Frankfurt – Research, Study, Transfer
  • og:description — Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for stud...
  • og:image — Add og:image — preview card without an image looks broken
  • og:type — article
  • og:url — Add og:url — Recommended — canonical URL for the share
  • og:site_name — Add og:site_name — Recommended — site-level brand line in the preview

  • No preview image for Facebook

    → Add og:image (recommended 1200×630)

No image set

Goethe University Frankfurt – Research, Study, Transfer

uni-frankfurt.de

Preview quality · LinkedIn C · 65/100
  • og:title — Goethe University Frankfurt – Research, Study, Transfer
  • og:description — Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for stud...
  • og:image — Add og:image — preview card without an image looks broken

  • No preview image for LinkedIn

    → Add og:image (recommended 1200×627)

uni-frankfurt.de

Goethe University Frankfurt – Research, Study, Transfer

Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for students and researchers.

Preview quality · Slack B · 80/100
  • og:title — Goethe University Frankfurt – Research, Study, Transfer
  • og:description — Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for stud...
  • og:image — Add og:image — preview card without an image looks broken

  • No preview image — Slack unfurl will be text-only

    → Add og:image or twitter:image

Social preview quality

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

D · 61/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title———
twitter:description———
twitter:image———
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+
Structured Data
2 JSON-LD block(s) found — structured data is well configured.
PASS
2 JSON-LD block(s) found — structured data is well configured.
Info::
Custom type "WebPage" — unable to validate specific properties
Info::
2 JSON-LD blocks found

JSON-LD Blocks

Block 1 : BreadcrumbList
3 properties Valid
{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {
      "@type": "ListItem",
      "position": 1,
      "name": "Home",
      "item": "https://www.uni-frankfurt.de/en"
    }
  ]
}
Block 2 : WebPage
8 properties Valid
{
  "@context": "https://schema.org",
  "@type": "WebPage",
  "name": "Goethe University Frankfurt – Research, Study, Transfer",
  "description": "Discover everything about Goethe University Frankfurt: course offerings, research, campus life, and services for students and researchers.",
  "datePublished": "2025-06-03T12:05:40.871+02:00",
  "dateModified": "2026-04-17T14:22:21.975+02:00",
  "author": {
    "@context": "https://schema.org",
    "@type": "Organization",
    "address": {
      "@type": "PostalAddress",
      "addressCountry": "DE",
      "addressRegion": "Hessen",
      "addressLocality": "Frankfurt am Main",
      "postalCode": "60323",
      "streetAddress": "Theodor-W.-Adorno-Platz 1"
    },
    "name": "Johann Wolfgang Goethe-Universität Frankfurt am Main",
    "url": "https://www.uni-frankfurt.de"
  },
  "image": "https://www.uni-frankfurt.de/dam/jcr:1ae93810-7eaa-4e89-addd-71c1695bee19/biologie-insekten-riedberg-2025-katrin-binner-1177.2026-01-27-16-31-05.jpg"
}
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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