Identity & Authority: 1st Double Glazing Doctor – Signal Evidence & AI Readability

1st Double Glazing Doctor

(http://doubleglazingdoctoredinburgh.co.uk) 📸 Data Snapshot: May 22, 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.
9 Impact Weight: 15 / 100
60% Reputation

An authority gap exists because the likely owner, Garry Summers, is only identified within the Privacy Policy text rather than positioned as an expert on the About or Homepage. There is no Person or expert schema present to link the individual’s expertise to the brand identity in a machine-readable way. The technical credibility is slightly undermined by a 404 error detected at the email protection path, suggesting some neglected site maintenance. While a name is present, the lack of a digital footprint or professional sameAs links results in a moderate authority gap.

The marketing tone is relatively grounded, though it makes bold assertions about ‘high quality of workmanship’ without showing visual proof or photographic evidence of completed projects. The claim that ‘most of our work comes from word of mouth’ is a common trope that functions as a placeholder for actual performance metrics. There is a disconnect between the claim of being ‘well-known’ and the stale metadata, which hasn’t seen a significant update since 2017 or 2023 according to the schema dates. As of the May 2026 anchor date, these claims are categorized as aging or stale.

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": "WebPage",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "name": "Double Glazing Repairs in Dunfermline, Fife | 1st Double Glazing Doctor",
            "isPartOf": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website"
            },
            "datePublished": "2015-08-04T10:35:57+00:00",
            "dateModified": "2017-11-02T11:19:41+00:00",
            "description": "Are you having problems with your double glazing? Here at 1st Double Glazing Doctor Fife we are more than happy to help. Call us today on 0131 337 3266.",
            "breadcrumb": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#breadcrumb"
            },
            "inLanguage": "en-US",
            "potentialAction": [
                {
                    "@type": "ReadAction",
                    "target": [
                        "https://www.doubleglazingdoctoredinburgh.co.uk/"
                    ]
                }
            ]
        },
        {
            "@type": "BreadcrumbList",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#breadcrumb",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home"
                }
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "name": "Double Glazing Doctor",
            "description": "Well-established, locally run business in Fife since 1996",
            "potentialAction": [
                {
                    "@type": "SearchAction",
                    "target": {
                        "@type": "EntryPoint",
                        "urlTemplate": "https://www.doubleglazingdoctoredinburgh.co.uk/?s={search_term_string}"
                    },
                    "query-input": {
                        "@type": "PropertyValueSpecification",
                        "valueRequired": true,
                        "valueName": "search_term_string"
                    }
                }
            ],
            "inLanguage": "en-US"
        }
    ]
}
/contact/
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "WebPage",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/contact/",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/contact/",
            "name": "Contact 1st Double Glazing Doctor | Dunfermline",
            "isPartOf": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website"
            },
            "datePublished": "2015-08-04T10:44:33+00:00",
            "dateModified": "2023-03-02T14:14:14+00:00",
            "description": "Whether you need patio door repairs or window repairs look no further than 1st Double Glazing Doctor based in Dunfermline. Call us today 0131 337 3266.",
            "breadcrumb": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/contact/#breadcrumb"
            },
            "inLanguage": "en-US",
            "potentialAction": [
                {
                    "@type": "ReadAction",
                    "target": [
                        "https://www.doubleglazingdoctoredinburgh.co.uk/contact/"
                    ]
                }
            ]
        },
        {
            "@type": "BreadcrumbList",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/contact/#breadcrumb",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://www.doubleglazingdoctoredinburgh.co.uk/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Contact"
                }
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "name": "Double Glazing Doctor",
            "description": "Well-established, locally run business in Fife since 1996",
            "potentialAction": [
                {
                    "@type": "SearchAction",
                    "target": {
                        "@type": "EntryPoint",
                        "urlTemplate": "https://www.doubleglazingdoctoredinburgh.co.uk/?s={search_term_string}"
                    },
                    "query-input": {
                        "@type": "PropertyValueSpecification",
                        "valueRequired": true,
                        "valueName": "search_term_string"
                    }
                }
            ],
            "inLanguage": "en-US"
        }
    ]
}
/double-glazing-repairs/
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "WebPage",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/double-glazing-repairs/",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/double-glazing-repairs/",
            "name": "Double Glazing Repairs | 1st Double Glazing Doctor | Fife",
            "isPartOf": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website"
            },
            "datePublished": "2017-09-13T09:48:03+00:00",
            "dateModified": "2017-09-13T10:10:59+00:00",
            "description": "Are you having problems with your double glazed windows and doors? Call the experts at 1st Double Glazing Doctor today on 0131 337 3266 or 01383 415 378.",
            "breadcrumb": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/double-glazing-repairs/#breadcrumb"
            },
            "inLanguage": "en-US",
            "potentialAction": [
                {
                    "@type": "ReadAction",
                    "target": [
                        "https://www.doubleglazingdoctoredinburgh.co.uk/double-glazing-repairs/"
                    ]
                }
            ]
        },
        {
            "@type": "BreadcrumbList",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/double-glazing-repairs/#breadcrumb",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://www.doubleglazingdoctoredinburgh.co.uk/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Double Glazing Repairs"
                }
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "name": "Double Glazing Doctor",
            "description": "Well-established, locally run business in Fife since 1996",
            "potentialAction": [
                {
                    "@type": "SearchAction",
                    "target": {
                        "@type": "EntryPoint",
                        "urlTemplate": "https://www.doubleglazingdoctoredinburgh.co.uk/?s={search_term_string}"
                    },
                    "query-input": {
                        "@type": "PropertyValueSpecification",
                        "valueRequired": true,
                        "valueName": "search_term_string"
                    }
                }
            ],
            "inLanguage": "en-US"
        }
    ]
}
/privacy-policy/
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "WebPage",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/privacy-policy/",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/privacy-policy/",
            "name": "Privacy Policy - Double Glazing Doctor",
            "isPartOf": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website"
            },
            "datePublished": "2018-08-30T13:37:08+00:00",
            "dateModified": "2018-09-12T09:11:50+00:00",
            "breadcrumb": {
                "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/privacy-policy/#breadcrumb"
            },
            "inLanguage": "en-US",
            "potentialAction": [
                {
                    "@type": "ReadAction",
                    "target": [
                        "https://www.doubleglazingdoctoredinburgh.co.uk/privacy-policy/"
                    ]
                }
            ]
        },
        {
            "@type": "BreadcrumbList",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/privacy-policy/#breadcrumb",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://www.doubleglazingdoctoredinburgh.co.uk/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Privacy Policy"
                }
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://www.doubleglazingdoctoredinburgh.co.uk/#website",
            "url": "https://www.doubleglazingdoctoredinburgh.co.uk/",
            "name": "Double Glazing Doctor",
            "description": "Well-established, locally run business in Fife since 1996",
            "potentialAction": [
                {
                    "@type": "SearchAction",
                    "target": {
                        "@type": "EntryPoint",
                        "urlTemplate": "https://www.doubleglazingdoctoredinburgh.co.uk/?s={search_term_string}"
                    },
                    "query-input": {
                        "@type": "PropertyValueSpecification",
                        "valueRequired": true,
                        "valueName": "search_term_string"
                    }
                }
            ],
            "inLanguage": "en-US"
        }
    ]
}
/cdn-cgi/l/email-protection/ — no schema detected (entity gap)
🛡️ Trust Signals — external proof links that back the declared identity
217Review mentions (all pages)
12External proof links (all pages)
PageReviewsProof links
/ (home) 54 3
/contact/ 54 3
/double-glazing-repairs/ 54 3
/privacy-policy/ 55 3
/cdn-cgi/l/email-protection/ 0 0
Explore the other reputation pillars for 1st Double Glazing Doctor