systemdynamics.org

https://systemdynamics.org· First analyzed 14 May 2026· Updated 14 May 2026

Export

systemdynamics.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

162.159.137.54

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-275.awsdns-34.com.ns-776.awsdns-33.net.ns-1355.awsdns-41.org.ns-1853.awsdns-39.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.9 MB

145 requests

Image Optimization

Lazy LoadWebPResponsiveSmush Pro

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.9.4

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

29 Technologies Detected

Plugins

Breeze Recaptcha Woo

WooCommerce

Gtm Ecommerce Woo Pro

Woocommerce Payments

Ultimate Member Event Tickets Event Tickets Plus

Donation For Woocommerce

Wp Smush Pro

Mailchimp For Woocommerce

Woocommerce Memberships

Ajax Search Lite

Advanced Product Fields For Woocommerce Pro

Libraries

CSS Frameworks

Analytics

Other

UI Components

Fonts

Tag Managers

Email Marketing

CDN

Security

SEO Analysis

B79/100

Meta Tags14/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile1/4

Indexability3/3

systemdynamics.orgsystemdynamics.org

System Dynamics Society | Home for Systems Thinkers and Modelers

The System Dynamics Society is a professional society that fosters and promotes training and research in the field of system dynamics.

Title Length64 chars

Recommended: 50-60 chars (~399px / 580px)

Description Length134 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

22 URLs

22 sub-sitemaps

robots.txt

117 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

17/100

Poor

5 12

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D42/100

Bot Access

10/25

Machine Read.

8/25

Schema Data

8/25

Citation

16/25

AI Bot Access

4/14 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

nav

Text ratio:4%

Words:1,191

Token eff.:Optimal

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary16w

Descriptive Headingsavg 3.1w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

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.

60/100

191 mg

CO₂e / view

1.9 MB

Page Weight

50%

Cleaner Than

New Visitor

219 mg

Returning (cached)

109 mg

Annual (10K/mo)

23.0 kg

Emission Segments

Data Center

9 mg

Network

56 mg

Device

126 mg

Resource Breakdown

JavaScript

452.4 KB

Images

14.3 KB

CSS

1.4 MB

Fonts

1.8 KB

HTML

31.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

37d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

22.03.2026

Valid Until

20.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

systemdynamics.org

SHA-256 Fingerprint

01:02:29:56:CE:4A:FF:4C:E6:9B:4B:96:B2:26:D5:F5:C7:9D:8B:B2...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

446

alt-svc

h3=":443"; ma=86400

cache-provider

CLOUDWAYS-CACHE-DE

cf-cache-status

DYNAMIC

cf-ray

9fbcc27e0b374f1b-SJC

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

systemdynamics.org

Domain Age

27y 11m

Created

28.05.1998

Expires

27.05.2035

Last Updated

11.07.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

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.

72/100

Mobile Friendly1 breakpoint

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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto + Nunito

WCAG Partial

50/100

Readability

/30

21/30

18px · LH 1.80

Hierarchy

/20

7/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

8/25

System fonts

Heading Font

Roboto

Sans

Body Font

Nunito

Sans18px

Contrast Ratio

1:1

1 issue

Reading Comfort

~35 CPL

Narrow lines

52px

45px

42px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle FontsFlesch 19

Color Palette

8 unique colors

5.25:1 AA Dark

#6c6c6c

Other· 54.3%

#ffffff

Text· 14.5%

#452a30

Primary· 8.6%

#50806e

Secondary· 0.6%

Business & Marketing Stack

3 Tools Detected

Advanced

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

systemdynamics.org(9)web.cmp.usercentrics.eu(3)googletagmanager.com(2)gstatic.com(2)chimpstatic.com(1)

Website Identity

System Dynamics Society

Organization

The System Dynamics Society is a professional society that fosters and promotes training and research in the field of system dynamics.

[email protected]

systemdynamics.org/

27 years old

Location detected: 🇨🇦 Canadavia ip

Network Solutions, LLC📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 14 May 2026 at 20:48

Historical Analysis & Change Tracking