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https://hamsterimkopf.de

Content

· 9 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
6
INFO
0
Checks
9
6 PASS 2 REVIEW 1 FIX
D
Image Optimization
Action
4 issues found across 7 images
FIX
4 issues found across 7 images
Warning::
3 images significantly larger than display size
Resizing to display dimensions could save approximately 115 KB.
Got: ~115 KB wasted
Info::
1 below-fold images missing loading="lazy"
Lazy loading defers below-fold images, reducing initial page weight.
Warning::
1 above-fold image(s) marked loading="lazy" (LCP anti-pattern)
Above-fold images marked lazy delay LCP -- the browser waits for the IntersectionObserver to fire before fetching, even though the image is in the initial viewport. Remove `loading="lazy"` on above-the-fold images (especially the LCP candidate). Sample: https://hamsterimkopf.de/images/cover-back.webp.
Info::
1 image(s) rendered at a different aspect ratio than the source
The displayed dimensions distort the source -- CSS is forcing the image into a container at the wrong ratio, producing visible stretching or squashing. Either crop the source to match or use object-fit: cover (and accept the crop). Sample: https://hamsterimkopf.de/images/cover-front-480.webp.
B
Structured Data
1 JSON-LD block(s) found — some improvements recommended.
REVIEW
1 JSON-LD block(s) found — some improvements recommended.
Warning::
Missing required property "name" for WebSite
The "name" property is required for the WebSite schema type.
Warning::
Missing required property "url" for WebSite
The "url" property is required for the WebSite schema type.
Info::
Missing recommended property "description" for WebSite
Adding "description" can improve how search engines display your content.
Info::
Missing recommended property "potentialAction" for WebSite
Adding "potentialAction" can improve how search engines display your content.

The "name" property is required for the WebSite schema type.

Why this matters

Schema markup missing required properties is silently rejected by Google — your structured data appears in source but never as a rich result.

Learn more ▾

Each schema.org type has required properties (Article needs headline + author + datePublished; Product needs name + offers; etc.). Missing them means Google's rich-result eligibility check fails. The Search Console Rich Results Test surfaces specific gaps. Fix the missing property; rich results re-appear within hours.

Source: Google Search Central / schema.org

The "url" property is required for the WebSite schema type.

Why this matters

Schema markup missing required properties is silently rejected by Google — your structured data appears in source but never as a rich result.

Learn more ▾

Each schema.org type has required properties (Article needs headline + author + datePublished; Product needs name + offers; etc.). Missing them means Google's rich-result eligibility check fails. The Search Console Rich Results Test surfaces specific gaps. Fix the missing property; rich results re-appear within hours.

Source: Google Search Central / schema.org

Adding "description" can improve how search engines display your content.

Why this matters

Recommended schema properties unlock richer SERP layouts — without them you get the basic rich result instead of the enhanced one.

Learn more ▾

Recommended properties expand what Google can render. E.g., adding aggregateRating to Product unlocks star ratings; adding image to Article unlocks the image-card variant. Each recommended property is a direct SERP-real-estate gain.

Source: Google Search Central / schema.org

Adding "potentialAction" can improve how search engines display your content.

Why this matters

Recommended schema properties unlock richer SERP layouts — without them you get the basic rich result instead of the enhanced one.

Learn more ▾

Recommended properties expand what Google can render. E.g., adding aggregateRating to Product unlocks star ratings; adding image to Article unlocks the image-card variant. Each recommended property is a direct SERP-real-estate gain.

Source: Google Search Central / schema.org

JSON-LD Blocks

Block 1 : WebSite
2 properties Valid
Missing required property: name
Missing required property: url
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "WebSite",
      "@id": "https://hamsterimkopf.de/#website",
      "url": "https://hamsterimkopf.de/",
      "name": "Hamster im Kopf",
      "inLanguage": "de-DE",
      "publisher": {
        "@id": "https://hamsterimkopf.de/#autor"
      }
    },
    {
      "@type": "Person",
      "@id": "https://hamsterimkopf.de/#autor",
      "name": "Dustin Rose",
      "url": "https://hamsterimkopf.de/#autor",
      "image": "https://hamsterimkopf.de/images/dustin-rose.jpg",
      "email": "mailto:info@hamsterimkopf.de"
    },
    {
      "@type": "Book",
      "@id": "https://hamsterimkopf.de/#buch",
      "name": "Hamster im Kopf",
      "alternativeHeadline": "die für Chaos sorgen, und Menschen, die wie Müllwagen sind",
      "description": "Wie du lernst, den Ballast anderer nicht anzunehmen und dein inneres Gedankenkarussell endlich zu stoppen. Ein humorvoller Ratgeber mit alltagstauglichen Strategien gegen Grübeln, Stress und die schlechte Laune anderer.",
      "author": {
        "@id": "https://hamsterimkopf.de/#autor"
      },
      "illustrator": {
        "@type": "Person",
        "name": "Michael Ermisch"
      },
      "publisher": {
        "@type": "Organization",
        "name": "BoD · Books on Demand GmbH"
      },
      "inLanguage": "de",
      "genre": [
        "Ratgeber",
        "Lebenshilfe"
      ],
      "about": [
        "Stressbewältigung",
        "Gedankenkarussell",
        "Grübeln",
        "Gelassenheit",
        "Abgrenzung"
      ],
      "url": "https://hamsterimkopf.de/",
      "image": "https://hamsterimkopf.de/images/cover-front.jpg",
      "copyrightYear": 2026,
      "datePublished": "2026-12-01",
      "workExample": {
        "@type": "Book",
        "bookFormat": "https://schema.org/Paperback",
        "isbn": "9783605077677",
        "datePublished": "2026-12-01",
        "numberOfPages": 146,
        "inLanguage": "de",
        "potentialAction": {
          "@type": "ReadAction",
          "target": [
            "https://www.thalia.de/suche?sq=9783605077677",
            "https://buchshop.bod.de/catalogsearch/result/?q=9783605077677"
          ]
        }
      }
    },
    {
      "@type": "FAQPage",
      "mainEntity": [
        {
          "@type": "Question",
          "name": "Worum geht es in „Hamster im Kopf“?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Um den inneren Hamster, der Sorgen, To-dos und „Was wäre, wenn“-Gedanken hortet, und um Menschen, die wie Müllwagen ihren Frust bei anderen abladen. Das Buch zeigt mit Humor und Alltagsbeispielen, wie du fremden Ballast nicht annimmst und dein Gedankenkarussell anhältst."
          }
        },
        {
          "@type": "Question",
          "name": "Ist das ein psychologisches Fachbuch?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Nein. Dustin Rose ist kein Psychologe, sondern schreibt aus dem echten Alltag zwischen Job, Familie und voller Bahn. Die Strategien sind praxisnah und stützen sich auf Gedanken von u. a. Rick Hanson, John Gottman und David J. Pollay. Das Buch ersetzt keine professionelle Hilfe."
          }
        },
        {
          "@type": "Question",
          "name": "Für wen ist das Buch geeignet?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Für alle, die abends nicht abschalten können, sich die schlechte Laune anderer zu Herzen nehmen, zu Perfektionismus neigen oder sich wie ein Browser mit 42 offenen Tabs fühlen."
          }
        },
        {
          "@type": "Question",
          "name": "Wann erscheint das Buch?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Am 1. Dezember 2026. Ab dann gibt es das Taschenbuch im BoD-Buchshop, bei Thalia und in jeder Buchhandlung. Wer nichts verpassen will, schreibt einfach eine kurze Mail an info@hamsterimkopf.de."
          }
        },
        {
          "@type": "Question",
          "name": "Wo kann ich das Buch kaufen?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Das Taschenbuch (ISBN 978-3-605-07767-7) gibt es im BoD-Buchshop, bei Thalia und in jeder Buchhandlung auf Bestellung. Einfach die ISBN nennen."
          }
        },
        {
          "@type": "Question",
          "name": "Gibt es Übungen zum Buch?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Ja, auf dieser Website: sechs interaktive Werkzeuge und Arbeitsblätter zum Ausdrucken, kostenlos und ohne Anmeldung."
          }
        }
      ]
    }
  ]
}
C
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
REVIEW

Brand Presence

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

C

65/100

Site name appears as

Page titleDas Buch gegen Gedankenkarussell & Stress | Dustin Rose
og:site_nameHamster im Kopf
twitter:site—
Organization.name—

Inconsistent — names differ across channels

Brand assets

Favicon

15/15

covers multiple sizes, apple-touch-icon + SVG

Social share image

20/20

og:image + twitter:image set

Meta completeness

20/20

Organization schema

0/15

Contact info discoverable

5/10

mailto link + tel link

Findings

  • Brand name differs across channels — users see inconsistent identity
  • 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.

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.

Preview

hamsterimkopf.de

Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress

„Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Erscheint am 1. Dezember 2026. Leseprobe, Kapitel, kostenlose Übungen.

Preview quality · Twitter/X A+ · 100/100
  • twitter:card — summary_large_image
  • twitter:title — Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress
  • twitter:description — „Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Ersc...
  • twitter:image — https://hamsterimkopf.de/images/og-image.jpg

HAMSTERIMKOPF.DE

Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress

„Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Erscheint am 1. Dezember 2026. Leseprobe, Kapitel, kostenlose Übungen.

Preview quality · Facebook A · 90/100

Title will be truncated (61 chars / 60 max)

Description will be truncated (188 chars / 155 max)

  • og:title — Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress
  • og:description — „Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Ersc...
  • og:image — https://hamsterimkopf.de/images/og-image.jpg
  • og:type — book
  • og:url — https://hamsterimkopf.de/
  • og:site_name — Hamster im Kopf
  • Title will be truncated on Facebook (61 chars, max 60)

    → Shorten og:title to ≤60 characters

  • Description will be truncated on Facebook (188 chars, max 155)

    → Tighten og:description to ≤155 characters

Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress

hamsterimkopf.de

Preview quality · LinkedIn A+ · 95/100

Description will be truncated (188 chars / 150 max)

  • og:title — Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress
  • og:description — „Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Ersc...
  • og:image — https://hamsterimkopf.de/images/og-image.jpg
  • Description will be truncated on LinkedIn (188 chars, max 150)

    → Tighten og:description to ≤150 characters

hamsterimkopf.de

Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress

„Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Erscheint am 1. Dezember 2026. Leseprobe, Kapitel, kostenlose Übungen.

Preview quality · Slack A+ · 100/100
  • og:title — Hamster im Kopf – Das Buch gegen Gedankenkarussell & Stress
  • og:description — „Hamster im Kopf“ von Dustin Rose: Wie du den Ballast anderer nicht annimmst und dein Gedankenkarussell stoppst. Ersc...
  • og:image — https://hamsterimkopf.de/images/og-image.jpg

Social preview quality

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

A+ · 96/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title———
twitter:description———
twitter:image———
A+
Open Graph / Twitter Card Depth
OG image dimensions and Twitter card configuration look healthy
PASS
OG image dimensions and Twitter card configuration look healthy
Info::
OG/Twitter Card depth is clean -- dimensions, card type, and inheritance all valid
A+
Rich Results Eligibility
1 JSON-LD block(s) declaring 4 schema type(s)
PASS
1 JSON-LD block(s) declaring 4 schema type(s)
Info::
4 rich-result schema type(s) declared
Inventory of structured-data types on the page (each may unlock a different SERP feature): Book, FAQPage, Person, WebSite Search engines decide whether to render rich results based on content quality + page-level signals; declaring the schema is necessary but not sufficient.
A+
Autoplay Media
No autoplay media on the page
PASS
No autoplay media on the page
Info::
No autoplay media on the page
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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