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Content

· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
79
GRADE
C
FIX
1
REVIEW
3
PASS
1
INFO
0
Checks
5
1 PASS 3 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

39/100

Site name appears as

Page titleBesuchen Sie uns auf RSS
og:site_name—
twitter:site—
Organization.name—

Consistent

Brand assets

Favicon

15/15

covers multiple sizes, apple-touch-icon + SVG

Social share image

0/20

Meta completeness

14/20

Organization schema

0/15

Contact info discoverable

5/10

contact page

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
  • Only partial contact info discoverable — consider adding a dedicated contact page or mailto/tel link

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::
og:description is long (296 characters)
Descriptions over 200 characters may be truncated in social sharing previews.
Got: 296 chars Expected: 55–200 chars
Info::
Missing og:type
The og:type tag helps social platforms categorize the 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

URL: 296 chars

Descriptions over 200 characters may be truncated in social sharing previews.

Expected: 55–200 chars
Why this matters

og:description borderline-too-long — social platforms truncate around ~200 chars.

Source: Open Graph Protocol

The og:type tag helps social platforms categorize the content.

Why this matters

Default og:type is 'website' but the right value (article, product, profile) unlocks richer metadata fields and higher engagement.

Learn more ▾

og:type controls which other og: fields a platform respects. og:type=article enables og:article:published_time, author, and section — surfaced in news cards. og:type=product enables price/availability fields surfaced by Pinterest and shopping integrations. Default 'website' silently disables those.

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

dlr.de

Deutsches Zentrum für Luft- und Raumfahrt

Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft- und Raumfahrt. Seine Forschungs- und Entwicklungsarbeiten in Luftfahrt, Raumfahrt, Energie, Verkehr und Sicherheit sind in nationale und internationale Kooperationen eingebunden.

Preview quality · Twitter/X D · 50/100

Description will be truncated (298 chars / 200 max)

  • twitter:card — summary_large_image
  • twitter:title — falling back from og:title
  • twitter:description — falling back from og:description
  • twitter:image — Add twitter:image — preview card without an image looks broken

  • Description will be truncated on Twitter/X (298 chars, max 200)

    → Tighten the description to ≤200 characters

  • No preview image for Twitter/X

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

No image set

DLR.DE

Deutsches Zentrum für Luft- und Raumfahrt

Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft- und Raumfahrt. Seine Forschungs- und Entwicklungsarbeiten in Luftfahrt, Raumfahrt, Energie, Verkehr und Sicherheit sind in nationale und internationale Kooperationen eingebunden.

Preview quality · Facebook F · 30/100

Description will be truncated (298 chars / 155 max)

  • og:title — Deutsches Zentrum für Luft- und Raumfahrt
  • og:description — Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft-...
  • og:image — Add og:image — preview card without an image looks broken
  • og:type — Add og:type — Recommended — tells Facebook the content category
  • og:url — https://www.dlr.de/de
  • og:site_name — Add og:site_name — Recommended — site-level brand line in the preview

  • Description will be truncated on Facebook (298 chars, max 155)

    → Tighten og:description to ≤155 characters

  • No preview image for Facebook

    → Add og:image (recommended 1200×630)

No image set

Deutsches Zentrum für Luft- und Raumfahrt

dlr.de

Preview quality · LinkedIn D · 60/100

Description will be truncated (298 chars / 150 max)

  • og:title — Deutsches Zentrum für Luft- und Raumfahrt
  • og:description — Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft-...
  • og:image — Add og:image — preview card without an image looks broken

  • Description will be truncated on LinkedIn (298 chars, max 150)

    → Tighten og:description to ≤150 characters

  • No preview image for LinkedIn

    → Add og:image (recommended 1200×627)

dlr.de

Deutsches Zentrum für Luft- und Raumfahrt

Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft- und Raumfahrt. Seine Forschungs- und Entwicklungsarbeiten in Luftfahrt, Raumfahrt, Energie, Verkehr und Sicherheit sind in nationale und internationale Kooperationen eingebunden.

Preview quality · Slack B · 80/100
  • og:title — Deutsches Zentrum für Luft- und Raumfahrt
  • og:description — Das Deutsche Zentrum für Luft- und Raumfahrt (DLR) ist das Forschungszentrum der Bundesrepublik Deutschland für Luft-...
  • 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 · 55/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title⚠———
twitter:description⚠———
twitter:image———
C
Structured Data
Action
No structured data (JSON-LD) found.
REVIEW
No structured data (JSON-LD) found.
Info::
No structured data (JSON-LD) found
Adding structured data helps search engines understand your content and can enable rich results.

Adding structured data helps search engines understand your content and can enable rich results.

Why this matters

Without schema.org markup, your pages can't appear as rich results (stars, FAQs, recipes) in search.

Learn more ▾

Structured data is what unlocks rich snippets — review stars, FAQ accordions, recipe cards, breadcrumbs, etc. — that take up more SERP space and dramatically improve click-through. The schema.org vocabulary is well-documented and JSON-LD is the easiest format.

Source: Google Search Central / schema.org

No structured data found

Structured data (JSON-LD) helps search engines understand your content better. Adding it can improve your search result appearance.

Common types include:

  • WebSite — your site identity and search box
  • Organization — your company information
  • Article — blog posts and news articles
  • Product — e-commerce product pages
  • BreadcrumbList — navigation paths
Learn more at schema.org
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
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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