STP
(https://stp.com) 📸 Data Snapshot: May 25, 2026Count trust words (review, testimonial, rating, verified) against real outbound proof links (Google, Trustpilot, Clutch, G2, Yelp). Lots of trust language with zero verification links is trust theatre. Unlinked logo galleries count against it.
Trust theatre is detected via a low review_count (3) and proof_links_count (2) for a global legacy brand, suggesting that consumer trust is asserted rather than verified through third-party platforms. The ‘REAL RESULTS’ H2 section references before-and-after images of fuel injectors, which provides visual proof, but the lack of linked lab studies or independent certifications creates a gap in the proof path.
The ratio of proof points is approximately 1 specific historical/corporate fact for every 4 vague marketing assertions. While the mention of Richard Petty and Danbury, CT provides physical and historical grounding, the primary product claims remain unsubstantiated by numerical performance data in the provided text.
Trust & Proof is read by weighing trust language against real verification. Below is the page-by-page tally of review mentions and external proof links, then the schema markup that may (or may not) declare verifiable ratings and identity proof.
🛡️ Trust Signals — reviews, proof links, trust-theatre check
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 3 | 2 |
| /product/ultra-5-in-1-fuel-system-cleaner/ | 3 | 2 |
| /about-us/ | 3 | 2 |
| /products/lawn-and-garden/ | 8 | 2 |
🔗 Identity & Technical Layer — schema JSON-LD: declared ratings, reviews & identity proof
Homepage schema
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://stp.com/",
"url": "https://stp.com/",
"name": "Home Page - STP® - Science. Technology. Performance.",
"isPartOf": {
"@id": "https://stp.com/#website"
},
"primaryImageOfPage": {
"@id": "https://stp.com/#primaryimage"
},
"image": {
"@id": "https://stp.com/#primaryimage"
},
"thumbnailUrl": "https://stpcdnimage.imgix.net/wp-content/uploads/2025/03/Fuel-Additives.avif",
"datePublished": "2025-04-09T04:18:22+00:00",
"dateModified": "2026-04-02T06:23:56+00:00",
"description": "Learn more about STP® products and use our helpful vehicle maintenance guides for tips on how to keep your vehicle running stronger for longer.",
"breadcrumb": {
"@id": "https://stp.com/#breadcrumb"
},
"inLanguage": "en-US",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://stp.com/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "en-US",
"@id": "https://stp.com/#primaryimage",
"url": "https://stpcdnimage.imgix.net/wp-content/uploads/2025/03/Fuel-Additives.avif",
"contentUrl": "https://stpcdnimage.imgix.net/wp-content/uploads/2025/03/Fuel-Additives.avif"
},
{
"@type": "BreadcrumbList",
"@id": "https://stp.com/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home"
}
]
},
{
"@type": "WebSite",
"@id": "https://stp.com/#website",
"url": "https://stp.com/",
"name": "STP® US",
"description": "Science. Technology. Performance",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://stp.com/?s={search_term_string}"
},
"query-input": {
"@type": "PropertyValueSpecification",
"valueRequired": true,
"valueName": "search_term_string"
}
}
],
"inLanguage": "en-US"
}
]
}
/product/ultra-5-in-1-fuel-system-cleaner/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://stp.com/product/ultra-5-in-1-fuel-system-cleaner/",
"url": "https://stp.com/product/ultra-5-in-1-fuel-system-cleaner/",
"name": "Ultra 5-in-1 Diesel System Cleaner | STP®",
"isPartOf": {
"@id": "https://stp.com/#website"
},
"datePublished": "2025-07-03T04:31:26+00:00",
"dateModified": "2025-08-06T04:31:46+00:00",
"description": "Keep your diesel vehicle running smoother for longer with STP® Ultra 5-In-1 Diesel System Cleaner. It’s designed to help restore your car to its best.",
"breadcrumb": {
"@id": "https://stp.com/product/ultra-5-in-1-fuel-system-cleaner/#breadcrumb"
},
"inLanguage": "en-US",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://stp.com/product/ultra-5-in-1-fuel-system-cleaner/"
]
}
]
},
{
"@type": "BreadcrumbList",
"@id": "https://stp.com/product/ultra-5-in-1-fuel-system-cleaner/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://stp.com/"
},
{
"@type": "ListItem",
"position": 2,
"name": "Products",
"item": "https://stp.com/products/"
},
{
"@type": "ListItem",
"position": 3,
"name": "Engine & Fuel Systems",
"item": "https://stp.com/products/engine-fuel-systems/"
},
{
"@type": "ListItem",
"position": 4,
"name": "Ultra 5-In-1 Fuel System Cleaner"
}
]
},
{
"@type": "WebSite",
"@id": "https://stp.com/#website",
"url": "https://stp.com/",
"name": "STP® US",
"description": "Science. Technology. Performance",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://stp.com/?s={search_term_string}"
},
"query-input": {
"@type": "PropertyValueSpecification",
"valueRequired": true,
"valueName": "search_term_string"
}
}
],
"inLanguage": "en-US"
}
]
}
/about-us/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://stp.com/about-us/",
"url": "https://stp.com/about-us/",
"name": "About Us - STP® US",
"isPartOf": {
"@id": "https://stp.com/#website"
},
"primaryImageOfPage": {
"@id": "https://stp.com/about-us/#primaryimage"
},
"image": {
"@id": "https://stp.com/about-us/#primaryimage"
},
"thumbnailUrl": "https://stp.com/wp-content/uploads/2025/04/test-history.jpg",
"datePublished": "2025-04-01T11:48:48+00:00",
"dateModified": "2025-06-27T11:29:31+00:00",
"breadcrumb": {
"@id": "https://stp.com/about-us/#breadcrumb"
},
"inLanguage": "en-US",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://stp.com/about-us/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "en-US",
"@id": "https://stp.com/about-us/#primaryimage",
"url": "https://stpcdnimage.imgix.net/wp-content/uploads/2025/04/test-history.jpg?auto=format%2Ccompress",
"contentUrl": "https://stpcdnimage.imgix.net/wp-content/uploads/2025/04/test-history.jpg?auto=format%2Ccompress",
"width": 762,
"height": 427
},
{
"@type": "BreadcrumbList",
"@id": "https://stp.com/about-us/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://stp.com/"
},
{
"@type": "ListItem",
"position": 2,
"name": "About Us"
}
]
},
{
"@type": "WebSite",
"@id": "https://stp.com/#website",
"url": "https://stp.com/",
"name": "STP® US",
"description": "Science. Technology. Performance",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://stp.com/?s={search_term_string}"
},
"query-input": {
"@type": "PropertyValueSpecification",
"valueRequired": true,
"valueName": "search_term_string"
}
}
],
"inLanguage": "en-US"
}
]
}
/products/lawn-and-garden/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "CollectionPage",
"@id": "https://stp.com/products/products/maintenance-other/lawn-and-garden/",
"url": "https://stp.com/products/products/maintenance-other/lawn-and-garden/",
"name": "LAWN and GARDEN Archives - STP® US",
"isPartOf": {
"@id": "https://stp.com/#website"
},
"breadcrumb": {
"@id": "https://stp.com/products/products/maintenance-other/lawn-and-garden/#breadcrumb"
},
"inLanguage": "en-US"
},
{
"@type": "BreadcrumbList",
"@id": "https://stp.com/products/products/maintenance-other/lawn-and-garden/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://stp.com/"
},
{
"@type": "ListItem",
"position": 2,
"name": "Products",
"item": "https://stp.com/products/"
},
{
"@type": "ListItem",
"position": 3,
"name": "Maintenance & Other",
"item": "https://stp.com/products/maintenance-other/"
},
{
"@type": "ListItem",
"position": 4,
"name": "LAWN and GARDEN"
}
]
},
{
"@type": "WebSite",
"@id": "https://stp.com/#website",
"url": "https://stp.com/",
"name": "STP® US",
"description": "Science. Technology. Performance",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://stp.com/?s={search_term_string}"
},
"query-input": {
"@type": "PropertyValueSpecification",
"valueRequired": true,
"valueName": "search_term_string"
}
}
],
"inLanguage": "en-US"
}
]
}
This page presents a snapshot of public data from STP, captured on May 25, 2026, to show how machine logic reads Trust & Proof 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 STP: 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://stp.com to view the most current version of its content and see directly what this company is about and what it offers.