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dgbc.nl

https://dgbc.nl· First analyzed 29 May 2026· Updated 29 May 2026
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dgbc.nl
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Hosting Provider

Today ISP BV

IP Address

87.236.103.56

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Spijkenisse, The Netherlands

ASN

AS60781

Organization

Today ISP BV

Server

LiteSpeed

Nameservers

ns0.transip.net.ns1.transip.nl.ns2.transip.eu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
583 ms10%
Speed Index
758 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
88 requests

Image Optimization

Lazy LoadWebPAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms

Technology Stack

16 Technologies Detected

Plugins

5
WooCommerce
Yoast SEO
LiteSpeed Cache
Gutenberg
Gravity Forms

Libraries

3
jQueryv2.10.1
jQuery UI
Moment.js

Analytics

2
Google Analytics
Google Analytics 4

Frameworks

1
React

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

Web Servers

1
LiteSpeed

SEO Analysis

B78/100
23
7
0
Meta Tags9/15
Content10/12
Headings7/8
Technical22/25
E-E-A-T2/7
Images7/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
D
dgbc.nldgbc.nl

Home - DGBC

Stichting Dutch Green Building Council (DGBC) is de aanjager van de verduurzaming van de gebouwde omgeving in Nederland. 

Title Length11 chars

Recommended: 50-60 chars (~73px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

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    Local SEO

    Local Search Readiness

    23/100
    Needs Work
    6 11

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    AI & LLM Readiness

    D46/100
    Bot Access
    20/25
    Machine Read.
    1/25
    Schema Data
    8/25
    Citation
    17/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:0%
    Words:0
    Token eff.:Too Short

    Structured Data

    8 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary23w
    Descriptive Headingsavg 5.2w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    AI readiness recommendation preview...
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    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    B
    79/100
    15
    Passed
    1
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    8/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 recommendations
    • •Accessibility recommendation preview...
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    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    63/100
    C
    164 mg
    CO₂e / view
    1.6 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    187 mg
    vs
    Returning (cached)
    94 mg
    Annual (10K/mo)
    19.6 kg
    Emission Segments
    Data Center
    8 mg
    Network
    48 mg
    Device
    108 mg
    Resource Breakdown
    JavaScript
    633.7 KB
    Images
    619.3 KB
    CSS
    267.7 KB
    HTML
    97.6 KB
    Other
    1.7 KB
    Green Hosting Verified
    Leaseweb Global BV
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
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    D

    Security Score

    51%Poor
    Interactive

    HTTPS

    No WAF

    76d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    15.05.2026

    Valid Until

    13.08.2026

    Subject Alternative Names (4)

    dgbc.nlheat4buildings.nlwww.dgbc.nlwww.heat4buildings.nl

    SHA-256 Fingerprint

    43:AC:08:5A:9A:B9:10:F1:DA:9D:4D:71:83:49:8D:D2:67:AC:AA:2B...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
    content-encoding
    ⚡ Brotli(br)
    content-length
    99677
    content-security-policy
    frame-ancestors 'self';
    content-type
    text/html; charset=UTF-8
    date
    Fri, 29 May 2026 01:29:52 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    dgbc-nl.mail.eo.outlook.com

    Domain Information

    dgbc.nl

    Domain Age
    18y 4m

    Created

    01.02.2008

    Last Updated

    15.07.2025

    Registrar

    team.blue nl B.V.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieYes

    Cookie Consent Banner
    CookieYes
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieYes
    Privacy policy page linked
    Data Protection Officer mentioned

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    A
    86/100
    Mobile Friendly26 breakpoints
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width, initial-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Poppins

    WCAG Partial
    72/100
    Readability
    /30
    24/30

    24px · LH 1.40

    Hierarchy
    /20
    14/20

    2.67x ratio

    WCAG
    /25
    18/25

    3.41:1 min contrast

    Performance
    /25
    16/25

    1 font · 7 req

    Heading Font

    Poppins

    Sans64px

    Body Font

    Poppins

    Sans24px

    Contrast Ratio

    3.41:1

    18 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    64px
    h1
    40px
    h2
    24px
    h3
    24px
    p

    ✅ Excellent readability: 24px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 3.4:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.7x larger than body text.

    Buy on MyFontsFluid Type (rem)Flesch 19

    Color Palette

    9 unique colors
    Light
    #ffffff
    Primary· 51.800000000000004%
    #69c4fb
    Accent· 8.5%
    #ac9880
    Secondary· 6.5%
    #303927
    Secondary· 6.5%
    #96d5f6
    Accent· 6.4%
    #946339
    Secondary· 6.4%
    #cfe6ee
    Secondary· 5.7%
    #4e95ad
    Secondary· 3.1%

    Business & Marketing Stack

    4 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookieYesSMB

    Cookie consent and privacy compliance tools

    3

    Categories

    4

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    6
    Async
    13
    Defer

    Top Script Sources

    dgbc.nl(7)(6)googletagmanager.com(3)cdn-cookieyes.com(2)googleads.g.doubleclick.net(2)

    Website Identity

    Dutch Green Building Council

    Dutch Green Building Council

    Organization

    BREEAM-NL is sinds 2009 de certificeringsmethode voor een duurzaam gebouwde omgeving. Met deze methode kunnen projecten worden beoordeeld op integrale duurzaamheid. BREEAM-NL heeft drie keurmerken. Voor nieuwbouwprojecten is er BREEAM-NL Nieuwbouw. Bestaande gebouwen worden beoordeeld met In-Us

    www.dgbc.nl/
    18 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    team.blue nl B.V.📧 Microsoft 365nl-NL

    Sponsored

    Last analyzed: 29 May 2026 at 01:30

    Historical Analysis & Change Tracking

    dgbc.nl Technology Stack - Built With React, jQuery, jQuery UI, Moment.js, Tailwind CSS | StackOptic | StackOptic