Content
· 9 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.FOpen GraphActionNo Open Graph tags found — social sharing previews will be generic.FIX
Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.
Without Open Graph tags, social shares show a broken or empty preview card.
Learn more ▾ ▴
When someone shares your URL on Facebook, LinkedIn, Slack, iMessage, or any modern chat app, the preview comes from <meta property="og:*"> tags. Without them you get either no card or whatever fragment the social platform guesses — usually unflattering. The four core og: tags (title, description, image, url) cover what every major platform actually reads.
Source: Open Graph Protocol
Preview
von-rakete.de
No title set
No description
Description will be truncated (211 chars / 200 max)
- twitter:card — Add <meta name="twitter:card" content="summary_large_image">
- twitter:title — falling back from <title>
- twitter:description — falling back from <meta name=description>
- twitter:image — Add twitter:image — preview card without an image looks broken
twitter:card is missing
→ Add <meta name="twitter:card" content="summary_large_image">
Description will be truncated on Twitter/X (211 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)
VON-RAKETE.DE
No title set
No description
Description will be truncated (211 chars / 155 max)
- og:title — falling back from <title>
- og:description — falling back from <meta name=description>
- 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 — Add og:url — Recommended — canonical URL for the share
- og:site_name — Add og:site_name — Recommended — site-level brand line in the preview
Description will be truncated on Facebook (211 chars, max 155)
→ Tighten og:description to ≤155 characters
No preview image for Facebook
→ Add og:image (recommended 1200×630)
No title set
von-rakete.de
Description will be truncated (211 chars / 150 max)
- og:title — falling back from <title>
- og:description — falling back from <meta name=description>
- og:image — Add og:image — preview card without an image looks broken
Description will be truncated on LinkedIn (211 chars, max 150)
→ Tighten og:description to ≤150 characters
No preview image for LinkedIn
→ Add og:image (recommended 1200×627)
von-rakete.de
No title set
No description
- og:title — falling back from <title>
- og:description — falling back from <meta name=description>
- 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.
| Field | Twitter/X | Slack | ||
|---|---|---|---|---|
| og:title | ⚠ | ⚠ | ⚠ | |
| og:description | ⚠ | ⚠ | ⚠ | |
| og:image | ||||
| og:type | ||||
| og:url | ||||
| og:site_name | ||||
| twitter:card | — | — | — | |
| twitter:title | ⚠ | — | — | — |
| twitter:description | ⚠ | — | — | — |
| twitter:image | — | — | — |
FBrand PresenceActionSite-name consistency, favicon, social image, meta tags, schema, and contact signalsFIX
Brand Presence
Partial brand coverage — a few channels are missing brand signals.
F
26/100
Site name appears as
| Page title | VON RAKETE | |
| og:site_name | — | |
| twitter:site | — | |
| Organization.name | — |
Consistent
Brand assets
Favicon
12/15covers apple-touch-icon + SVG
Social share image
0/20Meta completeness
4/20Organization schema
0/15Contact info discoverable
5/10mailto link + tel link
Findings
- Missing brand name in: og:site_name, twitter:site, Organization.name
- No social share image — shared links render as bare URLs
- Add an apple-touch-icon and at least two PNG sizes (32x32 + 192x192)
- og:title missing
- og:image missing
- twitter:card 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.
BStructured Data2 JSON-LD block(s) found — some improvements recommended.REVIEW
https://schema.contao.orgThe @context should be "https://schema.org" for search engines to recognize the data.
https://schema.orgJSON-LD without @context is invalid structured data — Google ignores the entire block.
Learn more ▾ ▴
@context must be 'https://schema.org' (or the schema-specific URL). Without it, the block isn't parseable as schema.org JSON-LD and Google skips it. Most schema generators handle this; manual edits sometimes drop the field.
Source: JSON-LD spec / schema.org
JSON-LD Blocks
{
"@context": "https:\/\/schema.org",
"@graph": [
{
"@type": "WebPage"
},
{
"@id": "#\/schema\/image\/751d1806-22c8-11eb-9d28-e0071b8a3c87",
"@type": "ImageObject",
"contentUrl": "\/files\/images\/home\/katja-moldenhauer.png",
"name": "Katja Moldenhauer"
},
{
"@id": "#\/schema\/image\/74e273ee-22c8-11eb-9d28-e0071b8a3c87",
"@type": "ImageObject",
"contentUrl": "\/files\/images\/home\/markus-schaefer.png",
"name": "Markus Schäfer"
}
]
}{
"@context": "https:\/\/schema.contao.org",
"@graph": [
{
"@type": "Page",
"fePreview": false,
"groups": [],
"noSearch": false,
"pageId": 6,
"protected": false,
"title": "Home"
}
]
}