Training Example: PostGIS – Review the Data, Give Your Score & Compare to the Real AI Evaluation

Industry Context — Common BS Fingerprints in Software, SaaS & Tech Products
Generic Claims: the all-in-one platform, trusted by thousands of companies, increase productivity by X percent, save hours every week…
Red Flags: AI claims without explaining what the AI does, customer logos without case study or testimonial evidence, no live product access or demo, SOC 2 claims without audit period or report availability…
Semantic Drift Patterns: homepage claims AI-powered but product is rules-based, claims enterprise-grade but pricing page shows startup tiers only, homepage shows Fortune 500 logos but case studies are small businesses, claims all-in-one but integration page shows critical missing pieces…
Proof Expectations: live product demo or free trial access, specific feature documentation with screenshots, verified customer logos with published case studies, third-party review scores on G2, Capterra, or TrustRadius…

PostGIS

(https://postgis.net) 📸 Data Snapshot: May 24, 2026

Analyze the raw signals below. How would a machine score this business’s credibility?

Here are the exact signals captured from up to six pages of the site — the same raw inputs the evaluation engine analyzed. They are grouped by signal type so you can weigh each the way the machine does.

🏗️ Semantic Structure — heading hierarchy & page identity (Info Density · Commodity Fingerprint)
HOMEPAGE PostGIS (https://postgis.net)
Title

PostGIS

H1 About PostGIS
H2 More
H2 Latest News
H3 PostGIS Patch Releases
NAV_HEADING_REPEATED_BODY Source Code | PostGIS (https://postgis.net/development/source_code/)
Title

Source Code | PostGIS

Meta

Where to find the source repository and released source code

H1 Source Code
H2 More
H2 Current Releases
H2 Source Code Repository
HEADING_REPEATED_BODY PostGIS Patch Releases | PostGIS (https://postgis.net/2026/04/PostGIS-Patch-Releases/)
Title

PostGIS Patch Releases | PostGIS

Meta

The PostGIS development team is pleased to provide bug fix and security releases for PostGIS 3.2 – 3.6.

H1 PostGIS Patch Releases
H2 More
NAV_HEADING News | PostGIS (https://postgis.net/news/)
Title

News | PostGIS

H1 PostGIS Patch Releases
H2 More
H3 3.6.1
H3 3.5.4
H3 3.6.0
H3 3.6.0rc2
H3 3.6.0rc1
H3 3.6.0beta1
H3 3.6.0alpha1
H3 3.5.3
📝 The Narrative — clean text per page (Info Density · Semantic Coherence)
HOMEPAGE (https://postgis.net) PostGIS
[H1] About PostGIS
PostGIS extends the capabilities of the PostgreSQL relational database by adding support for storing, indexing, and querying geospatial data.
PostGIS features include:
Spatial Data Storage: Store different types of spatial data such as points, lines, polygons, and multi-geometries, in both 2D and 3D data.
Spatial Indexing: Quickly search and retrieve spatial data based on its location.
Spatial Functions: A wide range of spatial functions that allow you to filter and analyze spatial data, measuring distances and areas, intersecting geometries, buffering, and more.
Geometry Processing: Tools for processing and manipulating geometry data, such as simplification, conversion, and generalization.
Raster Data Support: Storage and processing of raster data, such as elevation data and weather data.
Geocoding and Reverse Geocoding: Functions for geocoding and reverse geocoding.
Integration: Access and work with PostGIS using third party tools such as QGIS, GeoServer, MapServer, ArcGIS, Tableau.
[H2] Latest News

[H3] PostGIS Patch Releases
The PostGIS development team is pleased to provide
bug fix and security releases for
PostGIS 3.2 - 3.6.

Read more
gdoc_arrow_right_alt
1206 chars
SUB-PAGE (https://postgis.net/development/source_code/) Source Code | PostGIS
Home / Development / Source Code

[H1] Source Code

[H2]
Current Releases

The current source code releases are:

postgis-3.6.3.tar.gz [
md5
| Release Notes
]

postgis-3.5.6.tar.gz [
md5
| Release Notes
]

postgis-3.4.6.tar.gz [
md5
| Release Notes
]

postgis-3.3.10.tar.gz [
md5
| Release Notes
]

postgis-3.2.10.tar.gz [
md5
| Release Notes
]

postgis-3.1.13.tar.gz EOL [
md5
| Release Notes
]

postgis-3.0.12.tar.gz EOL [
md5
| Release Notes
]
Older releases are available directly from the source download directory. Refer to our version and end-of-life policy for details on code life cycle. Logos are available in the logo directory.

[H2]
Source Code Repository

The official PostGIS GIT repository is hosted at OSGeo.
https://gitea.osgeo.org/postgis/
Changes pushed to the official repository will be replicated to the two mirror repository sites. Changes committed to the mirror sites will be over-written the next time a changes are synced from OSGeo.
GitHub mirror: https://github.com/postgis/postgis/
GitLab mirror: https://gitlab.com/postgis/postgis/
Codeberg mirror: https://codeberg.org/postgis/postgis/
1144 chars
SUB-PAGE · THIN (https://postgis.net/2026/04/PostGIS-Patch-Releases/) PostGIS Patch Releases | PostGIS
Home / News / PostGIS Patch Releases

The PostGIS development team is pleased to provide
bug fix and security releases for
PostGIS 3.2 - 3.6.
3.6.3 source md5 NEWS docs: en
3.5.6 source md5 NEWS docs: en
3.4.6 source md5 NEWS docs: en
3.3.10 source md5 NEWS docs: en
3.2.10 source md5 NEWS docs: en
Please refer to the links above for more information about the issues resolved by these releases.
402 chars
SUB-PAGE (https://postgis.net/news/) News | PostGIS
Home / News

The PostGIS development team is pleased to provide
bug fix and security releases for
PostGIS 3.2 - 3.6.

Read more
gdoc_arrow_right_alt

The PostGIS development team is pleased to provide
bug fix releases for
PostGIS 3.0 - 3.6.
These are the End-Of-Life (EOL) releases for PostGIS 3.0.12 and 3.1.13.
If you haven’t already upgraded from 3.0 or 3.1 series, you should do so soon.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to publish PostGIS 3.6.1. This is a bug fix release that includes bug fixes since PostGIS 3.6.0.
This version requires PostgreSQL 12 - 18, Proj 6.1+, and GEOS 3.8+. To take advantage of all features, GEOS 3.12+ is needed.
SFCGAL 1.4+ is needed to enable postgis_sfcgal support. To take advantage of all SFCGAL features, SFCGAL 2.2+ is needed.
[H3]
3.6.1

source download md5
NEWS
PDF docs: en
HTML Online en ja fr zh_Hans
Cheat Sheets:
postgis: en ja fr zh_Hans
postgis_raster: en ja fr zh_Hans
postgis_topology: en ja fr zh_Hans
postgis_sfcgal: en ja fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja fr zh_Hans

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.5.4.
This version requires PostgreSQL 12 - 18beta1, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.12+ is needed.
SFCGAL 1.4+ is needed to enable postgis_sfcgal support.
To take advantage of all SFCGAL features, SFCGAL 1.5+ is needed.

[H3]
3.5.4

source download md5
NEWS
PDF docs: en
This release is a bug fix release that includes bug fixes since PostGIS 3.5.3.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.6.0!
Best Served with PostgreSQL 18 Beta3
and recently released GEOS 3.14.0.
This version requires PostgreSQL 12 - 18beta3, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.14+ is needed.
To take advantage of all SFCGAL features, SFCGAL 2.2.0+ is needed.

[H3]
3.6.0

source download md5
NEWS
HTML Online en ja sv fr zh_Hans
PDF docs: en ja, sv, zh_Hans, fr
Cheat Sheets:
postgis: en ja sv fr zh_Hans
postgis_raster: en ja sv fr zh_Hans
postgis_topology: en ja sv fr zh_Hans
postgis_sfcgal: en ja sv fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja sv fr zh_Hans
This release includes bug fixes since PostGIS 3.5.3 and new features.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.6.0rc2!
Best Served with PostgreSQL 18 Beta3
and recently released GEOS 3.14.0.
This version requires PostgreSQL 12 - 18beta3, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.14+ is needed.
To take advantage of all SFCGAL features, SFCGAL 2.2.0+ is needed.

[H3]
3.6.0rc2

source download md5
NEWS
HTML Online en ja sv fr zh_Hans
PDF docs: en ja, sv, zh_Hans, fr
Cheat Sheets:
postgis: en ja sv fr zh_Hans
postgis_raster: en ja sv fr zh_Hans
postgis_topology: en ja sv fr zh_Hans
postgis_sfcgal: en ja sv fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja sv fr zh_Hans
This release is a beta of a major release, it includes bug fixes since PostGIS 3.5.3 and new features.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.6.0rc1!
Best Served with PostgreSQL 18 Beta3
and soon to be released GEOS 3.14.
This version requires PostgreSQL 12 - 18beta3, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.14+ is needed.
To take advantage of all SFCGAL features, SFCGAL 2.2.0+ is needed.

[H3]
3.6.0rc1

source download md5
NEWS
HTML Online en ja sv fr zh_Hans
PDF docs: en ja, sv, zh_Hans, fr
Cheat Sheets:
postgis: en ja sv fr zh_Hans
postgis_raster: en ja sv fr zh_Hans
postgis_topology: en ja sv fr zh_Hans
postgis_sfcgal: en ja sv fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja sv fr zh_Hans
This release is a beta of a major release, it includes bug fixes since PostGIS 3.5.3 and new features.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.6.0beta1!
Best Served with PostgreSQL 18 Beta2
and soon to be released GEOS 3.14.
This version requires PostgreSQL 12 - 18beta2, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.14+ is needed.
To take advantage of all SFCGAL features, SFCGAL 2.2.0+ is needed.

[H3]
3.6.0beta1

source download md5
NEWS
HTML Online en ja sv fr zh_Hans
PDF docs: en ja, sv, zh_Hans, fr
Cheat Sheets:
postgis: en ja sv fr zh_Hans
postgis_raster: en ja sv fr zh_Hans
postgis_topology: en ja sv fr zh_Hans
postgis_sfcgal: en ja sv fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja sv fr zh_Hans
This release is a beta of a major release, it includes bug fixes since PostGIS 3.5.3 and new features.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.6.0alpha1!
Best Served with PostgreSQL 18 Beta1
and GEOS 3.13.1.
This version requires PostgreSQL 12 - 18beta1, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.12+ is needed.
To take advantage of all SFCGAL features, SFCGAL 2.1.0+ is needed.

[H3]
3.6.0alpha1

source download md5
NEWS
HTML Online en ja fr zh_Hans
PDF docs: en ja, zh_Hans, fr
Cheat Sheets:
postgis: en ja fr zh_Hans
postgis_raster: en ja fr zh_Hans
postgis_topology: en ja fr zh_Hans
postgis_sfcgal: en ja fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja fr zh_Hans
This release is an alpha of a major release, it includes bug fixes since PostGIS 3.5.3 and new features.

Read more
gdoc_arrow_right_alt

The PostGIS Team is pleased to release PostGIS 3.5.3.
This version requires PostgreSQL 12 - 18beta1, GEOS 3.8 or higher, and Proj 6.1+.
To take advantage of all features, GEOS 3.12+ is needed.
SFCGAL 1.4+ is needed to enable postgis_sfcgal support.
To take advantage of all SFCGAL features, SFCGAL 1.5+ is needed.

[H3]
3.5.3

source download md5
NEWS
PDF docs: en
HTML Online en ja fr zh_Hans
Cheat Sheets:
postgis: en ja fr zh_Hans
postgis_raster: en ja fr zh_Hans
postgis_topology: en ja fr zh_Hans
postgis_sfcgal: en ja fr zh_Hans
address standardizer, postgis_tiger_geocoder: en ja fr zh_Hans
This release is a bug fix release that includes bug fixes since PostGIS 3.5.1.

Read more
gdoc_arrow_right_alt
6371 chars
🛡️ Trust Signals — reviews, proof links, trust-theatre flag (Trust & Proof)
0Review mentions (all pages)
0External proof links (all pages)
PageReviewsProof links
/ (home) 0 0
/development/source_code/ 0 0
/2026/04/PostGIS-Patch-Releases/ 0 0
/news/ 0 0
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps (Identity & Authority)
Homepage schema
{
    "@context": "http://schema.org",
    "@type": "WebSite",
    "name": "PostGIS",
    "url": "https://postgis.net/",
    "license": "CC BY-SA 4.0",
    "inLanguage": "en"
}
/development/source_code/
{
    "@context": "http://schema.org",
    "@type": "TechArticle",
    "articleSection": "Development",
    "name": "Source Code",
    "url": "https://postgis.net/development/source_code/",
    "headline": "Source Code",
    "description": "Where to find the source repository and released source code",
    "wordCount": "144",
    "license": "CC BY-SA 4.0",
    "inLanguage": "en",
    "isFamilyFriendly": "true",
    "mainEntityOfPage": {
        "@type": "WebPage",
        "@id": "https://postgis.net/development/source_code/"
    },
    "copyrightHolder": "PostGIS",
    "copyrightYear": "2022",
    "dateCreated": "2022-02-01T00:00:00.00Z",
    "datePublished": "2022-02-01T00:00:00.00Z",
    "dateModified": "2022-02-01T00:00:00.00Z",
    "publisher": {
        "@type": "Organization",
        "name": "PostGIS",
        "url": "https://postgis.net/",
        "logo": {
            "@type": "ImageObject",
            "url": "https://postgis.net/brand.svg",
            "width": "32",
            "height": "32"
        }
    }
}
/2026/04/PostGIS-Patch-Releases/
{
    "@context": "http://schema.org",
    "@type": "TechArticle",
    "articleSection": "News",
    "name": "PostGIS Patch Releases",
    "url": "https://postgis.net/2026/04/PostGIS-Patch-Releases/",
    "headline": "PostGIS Patch Releases",
    "description": "The PostGIS development team is pleased to provide bug fix and security releases for PostGIS 3.2 - 3.6.",
    "wordCount": "64",
    "license": "CC BY-SA 4.0",
    "inLanguage": "en",
    "isFamilyFriendly": "true",
    "mainEntityOfPage": {
        "@type": "WebPage",
        "@id": "https://postgis.net/2026/04/PostGIS-Patch-Releases/"
    },
    "keywords": [
        "release",
        "3.6",
        "3.5",
        "3.4",
        "3.3",
        "3.2"
    ],
    "copyrightHolder": "PostGIS",
    "copyrightYear": "2026",
    "dateCreated": "2026-04-14T00:00:00.00Z",
    "datePublished": "2026-04-14T00:00:00.00Z",
    "dateModified": "2026-04-14T00:00:00.00Z",
    "publisher": {
        "@type": "Organization",
        "name": "PostGIS",
        "url": "https://postgis.net/",
        "logo": {
            "@type": "ImageObject",
            "url": "https://postgis.net/brand.svg",
            "width": "32",
            "height": "32"
        }
    }
}
/news/
{
    "@context": "http://schema.org",
    "@type": "TechArticle",
    "articleSection": "News",
    "name": "News",
    "url": "https://postgis.net/news/",
    "headline": "News",
    "wordCount": "0",
    "license": "CC BY-SA 4.0",
    "inLanguage": "en",
    "isFamilyFriendly": "true",
    "mainEntityOfPage": {
        "@type": "WebPage",
        "@id": "https://postgis.net/news/"
    },
    "copyrightHolder": "PostGIS",
    "copyrightYear": "2026",
    "dateCreated": "2026-04-14T00:00:00.00Z",
    "datePublished": "0001-01-01T00:00:00.00Z",
    "dateModified": "2026-04-14T00:00:00.00Z",
    "publisher": {
        "@type": "Organization",
        "name": "PostGIS",
        "url": "https://postgis.net/",
        "logo": {
            "@type": "ImageObject",
            "url": "https://postgis.net/brand.svg",
            "width": "32",
            "height": "32"
        }
    }
}

Your Diagnosis

Before revealing the machine’s verdict, predict the BS score for each signal. Higher = more BS (more fluff, less verifiable substance). Drag each slider, then submit to compare your judgment against the engine.

Information Density 0 / 30
Read the Narrative & headings: do hard facts (prices, dates, numbers) outweigh fluff power-words?
Semantic Coherence 0 / 20
Compare the homepage promise against the sub-page reality. Do they hold the same line?
Trust & Proof 0 / 20
Weigh review mentions against actual external proof links. Claims without verification = theatre.
Commodity Fingerprint 0 / 15
Check headings & narrative against the industry clichés in the setup above.
Identity & Authority 0 / 15
Inspect the schema: is there real Organization/Person identity with sameAs links, or gaps?
Your predicted BS score 0 / 100
💡 Stuck? Reveal the heuristic lens — how the deterministic page-auditor reads each signal (no AI, pure pattern rules)

These are the structural rules a local, deterministic auditor applies — the same lens you can use to judge each signal. They describe what to look for, not this company’s result.

Information Density

Classify each sentence as substantive or hollow. Grounding markers — numbers, currencies, dates, technical units, named entities — outweigh marketing adjectives. When fluff sits right next to hard evidence, the fluff is forgiven.

Semantic Alignment

Pull the main entities out of the H1, then check whether they actually recur through the body. A page that announces one thing and then talks about another drifts. Headings with no real sentences underneath read as pseudo-substance.

Trust & Proof

Count 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.

Commodity Fingerprint

Look at how much sentence length varies. Natural writing varies its rhythm; templated or mass-produced copy is statistically uniform. Very low variation reads as commodity content — unless unique named entities break the pattern.

Identity & Authority

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.

Want to apply this lens yourself? The free BS Indicator Chrome extension runs these heuristic checks live on any page. Bear in mind it is a single-page, deterministic tool — it relies only on pattern rules for the page in front of it and does not perform the cross-page semantic correlation this audit uses, so its readout is a starting lens, not the full verdict.

B
BS Level
Software, SaaS & Tech Products
33.2 Avg BS

Based on 1130 businesses audited.

BS Detector

Software, SaaS & Tech Products BS: PostGIS (postgis.net)

https://postgis.net 📍 Industry: Software, SaaS & Tech Products
3 BS / 100

PostGIS provides a masterclass in low-BS technical communication. It ignores modern SaaS marketing tropes in favor of raw technical utility, version transparency, and verifiable source code availability.

Info Density Power-words vs. Substance ratio.
1
3% BS
Semantic Coherence Homepage promise vs. Sub-page reality.
0
0% BS
Trust & Proof Verifiable evidence vs. Trust Theatre.
0
0% BS
Commodity Fingerprint Detection of industry clichés/templates.
1
7% BS
Identity & Authority Expert verifiability & Schema depth.
1
7% BS

1. Integrate Person schema for core project steering committee members to provide a human authority layer to the ‘development team’ claims. 2. Append sameAs links in the Organization schema to the official OSGeo foundation project page. 3. Consider adding a section for ‘Verified Integrations’ with links to the official documentation of mentioned partners like QGIS and GeoServer to further strengthen the proof path.

The site perfectly aligns with the Software and Tech Products industry, specifically focusing on open-source geospatial extensions for databases. The content is heavily focused on technical specifications, version control, and dependency requirements rather than marketing-led sales cycles.

“The score of 3 is one of the lowest possible, driven by the site's total rejection of industry jargon, its high density of technical specifics, and its alignment between homepage signals and sub-page code releases. Only minor points were added for the lack of individual person-level schema and the use of basic page templates.”

Verified Analysis Date: May 24, 2026 © 1EuroSEO Independent Evaluator — Non-Sponsored Result
Brand AI Reputation