ndsccenter.org

https://ndsccenter.org· First analyzed 24 May 2026· Updated 24 May 2026

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ndsccenter.org

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.5.5.85

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Apache

CDN

Cloudflare

WAF

Cloudflare

Nameservers

memphis.ns.cloudflare.com.magdalena.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

78 KB

38 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Cloudflare

Technology Stack

6 Technologies Detected

Analytics

UI Components

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

C69/100

Meta Tags7/15

Content12/12

Headings3/8

Technical19/25

E-E-A-T3/7

Images4/7

Links4/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

ndsccenter.orgndsccenter.org

Home : National Down Syndrome Congress

No description available for this page.

Title Length38 chars

Recommended: 50-60 chars (~237px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

9 issues found

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Crawlability

Sitemap

Type: standard

199 URLs

robots.txt

8 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

48/100

Fair

12 10

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AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

3/25

Citation

9/25

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

navheader/footer

Text ratio:12%

Words:2,012

Token eff.:Optimal

Sections/1K:4

Depth:2/5

Structured Data

3 JSON-LD

LocalBusiness×1.1BreadcrumbList

Citation Readiness

Opening Summary272w

Descriptive Headingsavg 3.8w

Canonical URL

Open Graph2/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

85/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

15/15

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

Keyboard & Focus

15/15

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.

1 recommendation

•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.

73/100

A+

8 mg

CO₂e / view

77.9 KB

Page Weight

95%

Cleaner Than

New Visitor

9 mg

Returning (cached)

5 mg

Annual (10K/mo)

948 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

5 mg

Resource Breakdown

JavaScript

59.1 KB

HTML

17.7 KB

Other

1.1 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

51%Poor

Interactive

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.05.2026

Valid Until

16.08.2026

Subject Alternative Names (1)

ndsccenter.org

SHA-256 Fingerprint

7B:D3:D5:49:0D:30:EE:E7:62:F3:7F:90:B1:28:99:22:D6:26:6F:E5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

17786

content-security-policy-report-only

default-src https:;script-src https: 'self' 'strict-dynamic'...

content-type

text/html; charset=UTF-8

date

Sun, 24 May 2026 12:55:02 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

ndsccenter-org.mail.protection.outlook.com

Domain Information

ndsccenter.org

Domain Age

27y 4m

Created

26.01.1999

Expires

26.01.2027

Last Updated

25.01.2026

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

77/100

Mobile Friendly3 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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto Slab + Inter

WCAG Partial

61/100

Readability

/30

23/30

18px · LH 1.75

Hierarchy

/20

6/20

WCAG

/25

16/25

4.14:1 min contrast

Performance

/25

16/25

2 fonts

Heading Font

Roboto Slab

Sans

Body Font

Inter

Sans18px

Contrast Ratio

4.14:1

4 issues

Reading Comfort

~34 CPL

Narrow lines

60px

46px

29px

18px

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

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 4.1:1).

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

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 31

Color Palette

13 unique colors

19.79:1 AAA Light

#ffffff

Background· 18.9%

#0a0a0b

Text· 6.1%

#c8c6ba

Secondary· 12%

#dddad5

Secondary· 9.9%

#125470

Primary· 7.6%

#192932

Secondary· 5.7%

#4e2d28

Secondary· 3.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.firespring.com(6)cdn.sitesearch360.com(3)datadoghq-browser-agent.com(1)analytics.firespring.com(1)googletagmanager.com(1)

Website Identity

Mailing Address

LocalBusiness

info@ndsccenter.org

8002326372

ndsccenter.org/

27 years old

Fueled Collective, Attn: NDSC, 3825 Edwards Road

Cincinnati, OH 45209, 3825 Edwards Road, 1st Floor, Suite 103

Location detected: 🇺🇸 United Statesvia ip

Cloudflare, Inc.📧 Microsoft 365en

Social Profiles

Facebook Instagram LinkedIn YouTube

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Last analyzed: 24 May 2026 at 12:55

Historical Analysis & Change Tracking