abcdstudy.org

https://abcdstudy.org· First analyzed 11 May 2026· Updated 11 May 2026

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abcdstudy.org

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.10

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

zelda.ns.cloudflare.com.piotr.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

352 ms10%

Speed Index

458 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

19 KB

46 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

abcdstudyCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

14 Technologies Detected

Plugins

WPML

Url Shortify Js_Composer

Google Analytics For Wordpress

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

CDN

SEO Analysis

B73/100

Meta Tags8/15

Content10/12

Headings3/8

Technical25/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

abcdstudy.orgabcdstudy.org

ABCD Study

The ABCD Study®, the largest long-term study of brain development and child health in the United States, involves 21 research sites across the country, and 1...

Description truncated.

Title Length10 chars

Recommended: 50-60 chars (~62px / 580px)

Description Length176 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (31/57) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

20/100

Needs Work

6 11 1

Sponsored

AI & LLM Readiness

D49/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

4/25

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

nav

Text ratio:4%

Words:1,137

Token eff.:Optimal

Depth:1/5

Structured Data

4 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary561w

Descriptive Headingsavg 9.3w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

69/100

Passed

Critical

Warnings

Images & Alt Text

13/20

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

10/15

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

7/15

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

4 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.

85/100

A+

2 mg

CO₂e / view

18.9 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

228 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

HTML

18.9 KB

Green Hosting Verified

Google Cloud

GWF Verified

1 recommendation

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (1)

abcdstudy.org

SHA-256 Fingerprint

77:50:44:80:4A:42:DB:A5:BF:01:9F:51:97:97:77:79:EE:88:E6:03...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-edge-cache

cache,platform=wordpress

cf-ray

9fa2e9ba3a2327c1-BOS

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

abcdstudy.org

Domain Age

11y 2m

Created

12.03.2015

Expires

12.03.2029

Last Updated

01.03.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

76/100

Mobile Friendly5 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, user-scalable=no, initial-scale=1.0, maximum-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

69/100

Readability

/30

24/30

16px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

18/25

1:1 min contrast

Performance

/25

20/25

1 font · 1 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

13 issues

Reading Comfort

~36 CPL

Narrow lines

42px

36px

30px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

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

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

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 44

Color Palette

8 unique colors

16.86:1 AAA Light

#ffffff

Primary· 72.6%

#1d1d1d

Text· 5.9%

#1a74a5

Primary· 4.8%

#5ab454

Primary· 4.6%

#96b8a9

Secondary· 3.2%

#d2d0bf

Secondary· 3.2%

#eef3ef

Secondary· 3%

#6f8780

Secondary· 2.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

abcdstudy.org(9)googletagmanager.com(1)

Website Identity

ABCD Study

The ABCD Study®, the largest long-term study of brain development and child health in the United States, involves 21 research sites across the country, and 11,880 participants.

abcdstudy.org/

11 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLCen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn Bluesky

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Last analyzed: 11 May 2026 at 17:31

Historical Analysis & Change Tracking