GL Design Services Ltd.
(https://gldesignltd.com) 📸 Data Snapshot: May 21, 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.
14
Impact Weight: 15 / 100
93% Reputation
The identity footprint is strong. Structured data includes a sameAs link to the founder’s LinkedIn profile (Grzegorz Lasyk), and the firm explicitly names their engineers (Gregory, Ewa) and their professional affiliations (Institute of Civil Engineers, Engineering Council). A minor gap exists as only the founder has a direct sameAs link in the schema, whereas additional staff are named without individual digital anchors.
There is no disconnect between marketing tone and demonstrated capability. The site does not claim to be the ‘best’ or ‘world-class’; instead, it claims to be ‘chartered’ and ‘fully insured,’ which are legally regulated status markers. Performance claims are backed by descriptions of specific engineering outputs (calculations, written reports, and drawings) rather than vague promises of transformation.
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": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@id": "https://gldesignltd.com/#/schema/Organization"
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd. | Structural Engineer in Croydon",
"description": "Our structural engineer in Croydon offers quality design services for residential layout alterations, loft conversions, house extensions and new builds.",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": {
"@type": "ListItem",
"position": 1,
"name": "GL Design Services Ltd."
}
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/"
},
"about": {
"@id": "https://gldesignltd.com/#/schema/Organization"
}
},
{
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
]
},
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"description": "Structural Engineer in Croydon",
"sameAs": [
"https://uk.linkedin.com/in/grzegorz-lasyk-4419411a9"
]
},
{
"@context": "https://schema.org",
"@type": "LocalBusiness",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"description": "Structural Engineer in Croydon",
"priceRange": "Various",
"image": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"telephone": "00447814530551",
"address": "25 Spencer Road South Croydon. CR2 7EL",
"email": "info@gldesignltd.com"
}
]
/contact-us/
[
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/contact-us/",
"url": "https://gldesignltd.com/contact-us/",
"name": "Contact page and form | GL Design Services Ltd.",
"description": "Please fill in the below form or contact us directly to discuss your upcoming project and see how we can help.",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": "https://gldesignltd.com/",
"name": "GL Design Services Ltd."
},
{
"@type": "ListItem",
"position": 2,
"name": "Contact page and form"
}
]
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/contact-us/"
}
}
]
},
{
"@context": "https://schema.org",
"@type": "ContactPage",
"name": "Contact",
"image": "https://gldesignltd.com/wp-content/uploads/gl-design-services-banner-856x214.jpg",
"description": "Please fill in the below form or contact us directly to discuss your upcoming project and see how we can help.",
"url": "https://gldesignltd.com/contact-us/"
}
]
/checking-engineer-services-and-category-3-checks-cat3/
[
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/checking-engineer-services-and-category-3-checks-cat3/",
"url": "https://gldesignltd.com/checking-engineer-services-and-category-3-checks-cat3/",
"name": "Checking engineer services and CAT3 | GL Design Services Ltd.",
"description": "Sometimes an independent professional is required to perform a sanity check of the proposed structural design.",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": "https://gldesignltd.com/",
"name": "GL Design Services Ltd."
},
{
"@type": "ListItem",
"position": 2,
"item": "https://gldesignltd.com/category/structural-engineer/",
"name": "Category: Structural Engineer"
},
{
"@type": "ListItem",
"position": 3,
"name": "Checking engineer services and CAT3"
}
]
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/checking-engineer-services-and-category-3-checks-cat3/"
},
"datePublished": "2021-03-01T13:57:44+00:00",
"dateModified": "2024-01-24T13:35:50+00:00",
"author": {
"@type": "Person",
"@id": "https://gldesignltd.com/#/schema/Person/4a46643332fcd42d53053db68a443819",
"name": "admingregory"
}
}
]
},
{
"@context": "https://schema.org",
"@type": "Article",
"name": "Checking engineer services and Category 3 checks (CAT3)",
"image": "",
"description": "Sometimes an independent professional is required to perform a sanity check of the proposed structural design to ensure that the proposal developed by others is structurally sound and safe to implement. This is especially important for temporary work",
"url": "https://gldesignltd.com/checking-engineer-services-and-category-3-checks-cat3/",
"author": "admingregory",
"datePublished": "March 1, 2021",
"headline": "Checking engineer services and Category 3 checks (CAT3)",
"publisher": {
"@type": "Organization",
"name": "GL Design Services Ltd.",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png"
}
}
}
]
/our-services/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/our-services/",
"url": "https://gldesignltd.com/our-services/",
"name": "Services Extensions Alterations Lofts | GL Design Services Ltd.",
"description": "We are UK qualified chartered engineers experienced in the calculation of steel, reinforced concrete, timber and masonry structures…",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": "https://gldesignltd.com/",
"name": "GL Design Services Ltd."
},
{
"@type": "ListItem",
"position": 2,
"name": "Services Extensions Alterations Lofts"
}
]
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/our-services/"
}
}
]
}
/faq/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/faq/",
"url": "https://gldesignltd.com/faq/",
"name": "Frequently Asked Questions | GL Design Services Ltd.",
"description": "GL Design Services are a group of chartered civil and structural engineers with over 14 years of design experience amassed on a wide range of structurally…",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": "https://gldesignltd.com/",
"name": "GL Design Services Ltd."
},
{
"@type": "ListItem",
"position": 2,
"name": "Frequently Asked Questions"
}
]
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/faq/"
}
}
]
}
/our-services/temporary-work-services/
[
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://gldesignltd.com/#/schema/WebSite",
"url": "https://gldesignltd.com/",
"name": "GL Design Services Ltd.",
"description": "Structural Engineer in Croydon",
"inLanguage": "en-GB",
"potentialAction": {
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://gldesignltd.com/search/{search_term_string}/"
},
"query-input": "required name=search_term_string"
},
"publisher": {
"@type": "Organization",
"@id": "https://gldesignltd.com/#/schema/Organization",
"name": "GL Design Services Ltd.",
"url": "https://gldesignltd.com/",
"logo": {
"@type": "ImageObject",
"url": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"contentUrl": "https://gldesignltd.com/wp-content/uploads/cropped-favicon.png",
"width": 512,
"height": 512,
"contentSize": "6540"
}
}
},
{
"@type": "WebPage",
"@id": "https://gldesignltd.com/our-services/temporary-work-services/",
"url": "https://gldesignltd.com/our-services/temporary-work-services/",
"name": "Temporary work services | GL Design Services Ltd.",
"description": "Having worked with one of the biggest demolition contractors gave us a solid understanding of temporary works design for residential conversion projects.",
"inLanguage": "en-GB",
"isPartOf": {
"@id": "https://gldesignltd.com/#/schema/WebSite"
},
"breadcrumb": {
"@type": "BreadcrumbList",
"@id": "https://gldesignltd.com/#/schema/BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"item": "https://gldesignltd.com/",
"name": "GL Design Services Ltd."
},
{
"@type": "ListItem",
"position": 2,
"item": "https://gldesignltd.com/our-services/",
"name": "Services Extensions Alterations Lofts"
},
{
"@type": "ListItem",
"position": 3,
"name": "Temporary work services"
}
]
},
"potentialAction": {
"@type": "ReadAction",
"target": "https://gldesignltd.com/our-services/temporary-work-services/"
}
}
]
},
{
"@context": "https://schema.org",
"@type": "Service",
"name": "Temporary works",
"image": "https://gldesignltd.com/wp-content/uploads/gl-design-services-banner-856x214.jpg",
"description": "Having worked with one of the biggest demolition contractors gave us a solid understanding of temporary works design for residential conversion projects. We can offer structural engineering consultancy services in designing temporary propping, needli",
"url": "https://gldesignltd.com/our-services/temporary-work-services/"
}
]
🛡️ Trust Signals — external proof links that back the declared identity
169Review mentions (all pages)
24External proof links (all pages)
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 142 | 22 |
| /contact-us/ | 5 | 0 |
| /checking-engineer-services-and-category-3-checks-cat3/ | 7 | 1 |
| /our-services/ | 5 | 0 |
| /faq/ | 5 | 0 |
| /our-services/temporary-work-services/ | 5 | 1 |
Explore the other reputation pillars for GL Design Services Ltd.
Analysis Disclosure & Source Attribution
This page presents a snapshot of public data from GL Design Services Ltd., captured on May 21, 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 GL Design Services Ltd.: 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://gldesignltd.com to view the most current version of its content and see directly what this company is about and what it offers.