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concord.org

https://concord.org· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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concord.org
Desktop screenshot of concord.org
Mobile screenshot of concord.org
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.165.122.59

Site Location

🇮🇪 Irelandvia ip

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Nginx

CDN

CloudFront

Nameservers

ns-539.awsdns-03.net.ns-1160.awsdns-17.org.ns-1947.awsdns-51.co.uk.ns-275.awsdns-34.com.

Performance

96

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%
911 KB
24 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
concord2017Custom

Technology Stack

19 Technologies Detected

Plugins

6
Cc CustomizationsResponsive LightboxSimple Embed CodeSyntax Highlighter MtAddthis
Autoptimize

Libraries

2
jQueryv3.7.1
Lightbox

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Google Analytics 4

Other

1
ScrollMagic

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Social

1
AddThis

Web Servers

1
Nginx

SEO Analysis

A82/100
24
4
1
Meta Tags10/15
Content11/12
Headings0/8
Technical23/25
E-E-A-T7/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
C
concord.orgconcord.org

Concord Consortium - Concord Consortium

Cultivating curiosity to bring out the inner scientist in everyone. We're a nonprofit organization dedicated to creating innovative educational technology fo...

Description truncated.
Title Length39 chars

Recommended: 50-60 chars (~243px / 580px)

Description Length259 chars

Recommended: 120-160 chars

Issues (1)

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

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

16 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 13 1

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

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AI & LLM Readiness

D55/100
Bot Access
18/25
Machine Read.
8/25
Schema Data
12/25
Citation
17/25

AI Bot Access

11/14 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
navheader/footer
Text ratio:10%
Words:1,175
Token eff.:Optimal
Depth:2/5

Structured Data

6 JSON-LD
Article×1.2Person×1.3Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary241w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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
72/100
9
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
12/20
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
15/15
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
1/15
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.
71/100
B
92 mg
CO₂e / view
911.0 KB
Page Weight
80%
Cleaner Than
New Visitor
105 mg
vs
Returning (cached)
53 mg
Annual (10K/mo)
11.0 kg
Emission Segments
Data Center
5 mg
Network
27 mg
Device
61 mg
Resource Breakdown
JavaScript
131.2 KB
Images
658.2 KB
CSS
103.6 KB
HTML
18.1 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

205d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.10.2025

Valid Until

19.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

concord.org

SHA-256 Fingerprint

B8:2C:19:FD:E7:84:5E:42:B2:08:17:50:88:79:EF:DC:F6:32:CB:5C...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 600s(max-age=600, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Tue, 28 Apr 2026 17:59:31 GMT
link
<https://concord.org/wp-json/>; rel="https://api.w.org/", <h...
referrer-policy
no-referrer-when-downgrade
Good Warning Issue

Email Infrastructure

Google Workspace

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx3.googlemail.com
alt2.aspmx.l.google.com
aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

concord.org

Domain Age
31y 2m

Created

26.02.1995

Expires

27.02.2027

Last Updated

24.01.2022

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
66/100
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

helvetica

WCAG Partial
62/100
Readability
/30
23/30

18px · LH 1.80

Hierarchy
/20
9/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
13/25

2 fonts · 1 req

Heading Font

helvetica

Body Font

helvetica

Sans18px

Contrast Ratio

1:1

30 issues

Reading Comfort

~49 CPL

Optimal (45–75)
18px
p

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

✅ Optimal line length: ~49 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 30 elements below WCAG AA threshold (min 1.0:1).

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Lean font stack: 2 font families keeps load times fast.

AAdobe FontsBuy on MyFontsFluid Type (rem)Flesch 17

Color Palette

10 unique colors
8.1:1 AAA Light
#ffffff
Background· 67.7%
#475251
Other· 1.9%
#fcc32c
Accent· 7.800000000000001%
#0793ae
Primary· 5.4%
#1c120c
Primary· 4.8%
#9d6f4d
Secondary· 2.2%
#baa383
Secondary· 1.3%
#f4dca3
Accent· 0.7%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google AnalyticsFree
Google Tag ManagerFree

User behavior and product analytics

Social Media

1
AddThisFree

Social widgets and sharing tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

16 Resources

6
Scripts
10
Styles
3
Async
1
Defer

Top Script Sources

concord.org(3)kit.fontawesome.com(1)googletagmanager.com(1)s7.addthis.com(1)

Website Identity

Concord Consortium

Concord Consortium

Consortium

Cultivating curiosity to bring out the inner scientist in everyone. We're a nonprofit organization dedicated to creating innovative educational technology for STEM learning. Our pioneering work brings technology's promise into reality for education worldwide.

31 years old
Location detected: 🇮🇪 Irelandvia ip
Network Solutions, LLC📧 Google Workspaceen-US

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Last analyzed: 28 Apr 2026 at 17:59

Historical Analysis & Change Tracking