adultdevelopmentstudy.org

https://adultdevelopmentstudy.org· First analyzed 04 May 2026· Updated 04 May 2026

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Hosting Provider

Wix

wix.com

IP Address

185.230.63.171

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS58182

Organization

Wix Com Inc

Server

Pepyaka

CDN

Fastly

Nameservers

ns3.wixdns.net.ns2.wixdns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

337 ms10%

Speed Index

438 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.2 MB

127 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Wix

website_builder

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

6 Technologies Detected

Frameworks

Libraries

Other

CSS Frameworks

Customer Support

Analytics

SEO Analysis

D56/100

Meta Tags8/15

Content2/12

Headings5/8

Technical20/25

E-E-A-T0/7

Images5/7

Links2/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

adultdevelopmentstudy.orgadultdevelopmentstudy.org

Harvard Second Generation Study

This is the official website of the Harvard Second Generation Study

Title Length31 chars

Recommended: 50-60 chars (~192px / 580px)

Description Length68 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (27 words). Search engines need substantial content for ranking.

10 issues found

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Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

14 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

Poor

4 12 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

F35/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

2/25

Citation

8/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:289

Token eff.:Too Short

Structured Data

1 JSON-LD

WebSite

Citation Readiness

Opening Summary

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 (12)

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.

81/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

15/20

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

11/15

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

ARIA & Roles

6/15

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

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.

34/100

280 mg

CO₂e / view

2.2 MB

Page Weight

50%

Cleaner Than

New Visitor

320 mg

Returning (cached)

160 mg

Annual (10K/mo)

33.6 kg

Emission Segments

Data Center

63 mg

Network

67 mg

Device

150 mg

Resource Breakdown

JavaScript

2.0 MB

Images

58.8 KB

HTML

106.8 KB

Other

60.2 KB

Green Hosting Not Verified

Wix

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

21d

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

24.02.2026

Valid Until

25.05.2026

Subject Alternative Names (2)

adultdevelopmentstudy.orgwww.adultdevelopmentstudy.org

SHA-256 Fingerprint

5B:AE:29:67:C0:01:D2:23:E2:D1:B1:FD:92:BF:78:F5:AE:91:22:B6...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

408432

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

cache-control

🟡 0s(public,max-age=0,must-revalidate)

content-encoding

⚡ Brotli(br)

content-language

de-DE

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

adultdevelopmentstudy.org

Domain Age

10 years

Created

08.04.2016

Expires

08.04.2028

Last Updated

03.04.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

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.

71/100

Mobile Friendly

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

din-next-w01-light + helvetica-w01-roman

WCAG Partial

52/100

Readability

/30

21/30

17px · LH 1.30

Hierarchy

/20

12/20

2.18x ratio

WCAG

/25

11/25

1:1 min contrast

Performance

/25

8/25

System fonts

Heading Font

din-next-w01-light

Sans37px

Body Font

helvetica-w01-roman

Sans17px

Contrast Ratio

1:1

22 issues

Reading Comfort

~54 CPL

Optimal (45–75)

37px

60px

17px

Minor Second

Scale

✅ Excellent readability: 17px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~54 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFluid TypeFlesch 39

Color Palette

5 unique colors

Light

#cbc8c8

Other· 4.7%

#822424

Primary· 77.5%

#fffcf3

Accent· 13.8%

#a2817e

Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.parastorage.com(11)browser.sentry-cdn.com(2)

Website Identity

harvardstudy

mghadultdevelopmentstudy@mgh.harvard.edu

www.adultdevelopmentstudy.org

10 years old

Location detected: 🇺🇸 United Statesvia ip

Tucows Domains Inc.en

Social Profiles

Facebook

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Last analyzed: 04 May 2026 at 09:19

Historical Analysis & Change Tracking