Sandberg Guitars
(https://sandberg-guitars.de) 📸 Data Snapshot: June 19, 2026
Identity & Authority — The Lens
Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.
Identity & Authority
Expert verifiability & Schema depth.
10
Impact Weight: 15 / 100
67% Reputation
While Holger Stonjek is explicitly named as the founder and author, the schema_json lacks a Person entity or sameAs links to verify his industry standing externally. The authority is localized to the brand’s own narrative. Furthermore, a ’40th Anniversary’ claim is made, but the site’s technical implementation (missing body content on product pages) creates a credibility gap between ‘long-standing expert’ and ‘functioning digital presence’.
The site claims to be ‘The Face of Bass’ and a ‘journey’ of 40 years, yet provides zero artist testimonials, named professional players, or specific production metrics. The marketing tone is ‘premium and established,’ but the content demonstrates a lack of granular detail regarding the instruments’ construction, materials, or ‘Sound’ mentioned in the repeated slogan. Bold claims about the book’s quality are not backed by excerpts or critical reviews.
Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
Homepage schema
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "Organization",
"@id": "https://www.sandberg-guitars.de/#organization",
"name": "Sandberg Guitars",
"url": "https://www.sandberg-guitars.de/",
"sameAs": [
"https://www.facebook.com/sandbergguitars",
"https://www.instagram.com/sandbergguitars/",
"https://www.youtube.com/user/SandbergGuitars",
"https://twitter.com/SandbergGuitars"
],
"logo": {
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/#logo",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/sandberg_logo_140221.jpg",
"width": 730,
"height": 372,
"caption": "Sandberg Guitars"
},
"image": {
"@id": "https://www.sandberg-guitars.de/#logo"
}
},
{
"@type": "WebSite",
"@id": "https://www.sandberg-guitars.de/#website",
"url": "https://www.sandberg-guitars.de/",
"name": "Sandberg Guitars",
"inLanguage": "de-DE",
"description": "The Official Sandberg Webpage",
"publisher": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"potentialAction": [
{
"@type": "SearchAction",
"target": "https://www.sandberg-guitars.de/?s={search_term_string}",
"query-input": "required name=search_term_string"
}
]
},
{
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/#webpage",
"url": "https://www.sandberg-guitars.de/",
"name": "News - Sandberg Guitars",
"isPartOf": {
"@id": "https://www.sandberg-guitars.de/#website"
},
"inLanguage": "de-DE",
"about": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"datePublished": "2021-01-28T15:32:23+00:00",
"dateModified": "2021-02-04T12:21:44+00:00",
"description": "Official website of Sandberg Guitars - German producer of guitars and bass guitars: California T Bass, California V Bass, Basic Bass, Classic Bass, Custom Bass, Electra Bass, Forty Eight Bass, Panther Bass, STS Guitar, Florence Guitar, California DC Guitar, Electra DC Guitar, Forty Eight Guitar",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.sandberg-guitars.de/"
]
}
]
}
]
}
/sandberg-configurator/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "Organization",
"@id": "https://www.sandberg-guitars.de/#organization",
"name": "Sandberg Guitars",
"url": "https://www.sandberg-guitars.de/",
"sameAs": [
"https://www.facebook.com/sandbergguitars",
"https://www.instagram.com/sandbergguitars/",
"https://www.youtube.com/user/SandbergGuitars",
"https://twitter.com/SandbergGuitars"
],
"logo": {
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/#logo",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/sandberg_logo_140221.jpg",
"width": 730,
"height": 372,
"caption": "Sandberg Guitars"
},
"image": {
"@id": "https://www.sandberg-guitars.de/#logo"
}
},
{
"@type": "WebSite",
"@id": "https://www.sandberg-guitars.de/#website",
"url": "https://www.sandberg-guitars.de/",
"name": "Sandberg Guitars",
"inLanguage": "de-DE",
"description": "The Official Sandberg Webpage",
"publisher": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"potentialAction": [
{
"@type": "SearchAction",
"target": "https://www.sandberg-guitars.de/?s={search_term_string}",
"query-input": "required name=search_term_string"
}
]
},
{
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#primaryimage",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/config_btn3.jpg",
"width": 300,
"height": 300
},
{
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#webpage",
"url": "https://www.sandberg-guitars.de/sandberg-configurator/",
"name": "Sandberg Configurator - Sandberg Guitars",
"isPartOf": {
"@id": "https://www.sandberg-guitars.de/#website"
},
"inLanguage": "de-DE",
"primaryImageOfPage": {
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#primaryimage"
},
"datePublished": "2019-10-15T08:07:41+00:00",
"dateModified": "2019-12-18T11:07:01+00:00",
"description": "Official website of Sandberg Guitars - German producer of guitars and bass guitars: California T Bass, California V Bass, Basic Bass, Classic Bass, Custom Bass, Electra Bass, Forty Eight Bass, Panther Bass, STS Guitar, Florence Guitar, California DC Guitar, Electra DC Guitar, Forty Eight Guitar",
"breadcrumb": {
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#breadcrumb"
},
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.sandberg-guitars.de/sandberg-configurator/"
]
}
]
},
{
"@type": "BreadcrumbList",
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/",
"url": "https://www.sandberg-guitars.de/",
"name": "Startseite"
}
},
{
"@type": "ListItem",
"position": 2,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/",
"url": "https://www.sandberg-guitars.de/sandberg-configurator/",
"name": "Sandberg Configurator"
}
}
]
},
{
"@type": "Article",
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#article",
"isPartOf": {
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#webpage"
},
"author": {
"@id": "https://www.sandberg-guitars.de/#/schema/person/2e5627b493ab53dbe645477fbf642184"
},
"headline": "Sandberg Configurator",
"datePublished": "2019-10-15T08:07:41+00:00",
"dateModified": "2019-12-18T11:07:01+00:00",
"commentCount": 0,
"mainEntityOfPage": {
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#webpage"
},
"publisher": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"image": {
"@id": "https://www.sandberg-guitars.de/sandberg-configurator/#primaryimage"
},
"articleSection": "StartPosts",
"inLanguage": "de-DE"
},
{
"@type": [
"Person"
],
"@id": "https://www.sandberg-guitars.de/#/schema/person/2e5627b493ab53dbe645477fbf642184",
"name": "Frank Gebhard",
"sameAs": []
}
]
}
/customized-instruments/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "Organization",
"@id": "https://www.sandberg-guitars.de/#organization",
"name": "Sandberg Guitars",
"url": "https://www.sandberg-guitars.de/",
"sameAs": [
"https://www.facebook.com/sandbergguitars",
"https://www.instagram.com/sandbergguitars/",
"https://www.youtube.com/user/SandbergGuitars",
"https://twitter.com/SandbergGuitars"
],
"logo": {
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/#logo",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/sandberg_logo_140221.jpg",
"width": 730,
"height": 372,
"caption": "Sandberg Guitars"
},
"image": {
"@id": "https://www.sandberg-guitars.de/#logo"
}
},
{
"@type": "WebSite",
"@id": "https://www.sandberg-guitars.de/#website",
"url": "https://www.sandberg-guitars.de/",
"name": "Sandberg Guitars",
"inLanguage": "de-DE",
"description": "The Official Sandberg Webpage",
"publisher": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"potentialAction": [
{
"@type": "SearchAction",
"target": "https://www.sandberg-guitars.de/?s={search_term_string}",
"query-input": "required name=search_term_string"
}
]
},
{
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/customized-instruments/#primaryimage",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/plasma-red-LEDs_header.jpg",
"width": 2000,
"height": 800
},
{
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/customized-instruments/#webpage",
"url": "https://www.sandberg-guitars.de/customized-instruments/",
"name": "Customized Instruments - Sandberg Guitars",
"isPartOf": {
"@id": "https://www.sandberg-guitars.de/#website"
},
"inLanguage": "de-DE",
"primaryImageOfPage": {
"@id": "https://www.sandberg-guitars.de/customized-instruments/#primaryimage"
},
"datePublished": "2019-11-01T16:50:09+00:00",
"dateModified": "2021-09-09T06:49:52+00:00",
"description": "Official website of Sandberg Guitars - German producer of guitars and bass guitars: California T Bass, California V Bass, Basic Bass, Classic Bass, Custom Bass, Electra Bass, Forty Eight Bass, Panther Bass, STS Guitar, Florence Guitar, California DC Guitar, Electra DC Guitar, Forty Eight Guitar",
"breadcrumb": {
"@id": "https://www.sandberg-guitars.de/customized-instruments/#breadcrumb"
},
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.sandberg-guitars.de/customized-instruments/"
]
}
]
},
{
"@type": "BreadcrumbList",
"@id": "https://www.sandberg-guitars.de/customized-instruments/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/",
"url": "https://www.sandberg-guitars.de/",
"name": "Startseite"
}
},
{
"@type": "ListItem",
"position": 2,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/customized-instruments/",
"url": "https://www.sandberg-guitars.de/customized-instruments/",
"name": "Customized Instruments"
}
}
]
}
]
}
/impressum/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "Organization",
"@id": "https://www.sandberg-guitars.de/#organization",
"name": "Sandberg Guitars",
"url": "https://www.sandberg-guitars.de/",
"sameAs": [
"https://www.facebook.com/sandbergguitars",
"https://www.instagram.com/sandbergguitars/",
"https://www.youtube.com/user/SandbergGuitars",
"https://twitter.com/SandbergGuitars"
],
"logo": {
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/#logo",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/sandberg_logo_140221.jpg",
"width": 730,
"height": 372,
"caption": "Sandberg Guitars"
},
"image": {
"@id": "https://www.sandberg-guitars.de/#logo"
}
},
{
"@type": "WebSite",
"@id": "https://www.sandberg-guitars.de/#website",
"url": "https://www.sandberg-guitars.de/",
"name": "Sandberg Guitars",
"inLanguage": "de-DE",
"description": "The Official Sandberg Webpage",
"publisher": {
"@id": "https://www.sandberg-guitars.de/#organization"
},
"potentialAction": [
{
"@type": "SearchAction",
"target": "https://www.sandberg-guitars.de/?s={search_term_string}",
"query-input": "required name=search_term_string"
}
]
},
{
"@type": "ImageObject",
"@id": "https://www.sandberg-guitars.de/impressum/#primaryimage",
"inLanguage": "de-DE",
"url": "https://www.sandberg-guitars.de/wp-content/uploads/2018/11/header_christian.jpg",
"width": 2000,
"height": 801,
"caption": "image for header of Sandberg Guitars - impressum"
},
{
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/impressum/#webpage",
"url": "https://www.sandberg-guitars.de/impressum/",
"name": "Impressum - Sandberg Guitars",
"isPartOf": {
"@id": "https://www.sandberg-guitars.de/#website"
},
"inLanguage": "de-DE",
"primaryImageOfPage": {
"@id": "https://www.sandberg-guitars.de/impressum/#primaryimage"
},
"datePublished": "2018-11-19T12:03:43+00:00",
"dateModified": "2019-06-26T07:26:03+00:00",
"description": "Official website of Sandberg Guitars - German producer of guitars and bass guitars: California T Bass, California V Bass, Basic Bass, Classic Bass, Custom Bass, Electra Bass, Forty Eight Bass, Panther Bass, STS Guitar, Florence Guitar, California DC Guitar, Electra DC Guitar, Forty Eight Guitar",
"breadcrumb": {
"@id": "https://www.sandberg-guitars.de/impressum/#breadcrumb"
},
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.sandberg-guitars.de/impressum/"
]
}
]
},
{
"@type": "BreadcrumbList",
"@id": "https://www.sandberg-guitars.de/impressum/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/",
"url": "https://www.sandberg-guitars.de/",
"name": "Startseite"
}
},
{
"@type": "ListItem",
"position": 2,
"item": {
"@type": "WebPage",
"@id": "https://www.sandberg-guitars.de/impressum/",
"url": "https://www.sandberg-guitars.de/impressum/",
"name": "Impressum"
}
}
]
}
]
}
🛡️ Trust Signals — external proof links that back the declared identity
8Review mentions (all pages)
8External proof links (all pages)
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 2 | 2 |
| /sandberg-configurator/ | 2 | 2 |
| /customized-instruments/ | 2 | 2 |
| /impressum/ | 2 | 2 |
Explore the other reputation pillars for Sandberg Guitars
Analysis Disclosure & Source Attribution
This page presents a snapshot of public data from Sandberg Guitars, captured on June 19, 2026, to show how machine logic reads Identity & Authority signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to Sandberg Guitars: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://sandberg-guitars.de to view the most current version of its content and see directly what this company is about and what it offers.