marrow.org

https://marrow.org· First analyzed 10 May 2026· Updated 10 May 2026

Export

marrow.org

Mobile

Sponsored

Hosting Provider

Vercel

vercel.com

IP Address

76.76.21.21

Site Location

🇺🇸 Minneapolis, United Statesvia schema_nap

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

CDN

Imperva

WAF

Imperva

Nameservers

ns1.a0.impervasecuredns.net.ns1.a2.impervasecuredns.net.ns1.a1.impervasecuredns.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

778 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.3 MB

58 requests

Image Optimization

ResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Sitecore

Infrastructure

Platform

Vercel

CDN

Imperva

Technology Stack

8 Technologies Detected

Analytics

Meta Frameworks

Other

CSS Frameworks

Tag Managers

Advertising

Platforms

SEO Analysis

B71/100

Meta Tags12/15

Content10/12

Headings3/8

Technical23/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

marrow.orgmarrow.org

NMDP (formerly Be The Match) global nonprofit in cell therapy | NMDP

NMDP is a global nonprofit leader in blood stem cell and bone marrow transplant, advancing research and cell therapies to give patients life-saving care.

Title Length68 chars

Recommended: 50-60 chars (~415px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (25/48) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

1 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

26/100

Needs Work

7 13

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

7/25

Citation

15/25

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:3%

Words:1,321

Token eff.:Optimal

Sections/1K:2.3

Depth:1/5

Structured Data

2 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary25w

Descriptive Headingsavg 4.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

80/100

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

9/15

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

ARIA & Roles

8/15

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

3 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.

60/100

131 mg

CO₂e / view

1.3 MB

Page Weight

70%

Cleaner Than

New Visitor

150 mg

Returning (cached)

75 mg

Annual (10K/mo)

15.7 kg

Emission Segments

Data Center

6 mg

Network

39 mg

Device

86 mg

Resource Breakdown

JavaScript

832.8 KB

Images

3.2 KB

CSS

313.4 KB

Fonts

63.8 KB

HTML

30.3 KB

Other

53.5 KB

Green Hosting Verified

Vercel

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

81%Very Good

Interactive

HTTPS

No WAF

38d

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

Valid From

20.03.2026

Valid Until

18.06.2026

Subject Alternative Names (1)

www.nmdp.org

SHA-256 Fingerprint

9F:13:8C:99:6D:65:44:08:44:BA:FC:9A:29:FC:C8:03:F9:ED:08:07...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

https://www.nmdp.org

age

4506

cache-control

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

content-encoding

⚡ Brotli(br)

content-security-policy

base-uri 'self' https://*.vbrick.com https://api-engage-us.s...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

smtp.nmdp.org

Domain Information

marrow.org

Domain Age

30y 8m

Created

25.08.1995

Expires

24.08.2029

Last Updated

02.07.2024

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

76/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

DM Sans

WCAG Partial

64/100

Readability

/30

25/30

16px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 5 req

Heading Font

DM Sans

Sans

Body Font

DM Sans

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~39 CPL

Narrow lines

40px

26px

16px

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

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

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

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

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

Buy on MyFontsFlesch 64

Color Palette

12 unique colors

Light

#ffffff

Background· 47.7%

#9e217c

Primary· 6.5%

#352e3f

Secondary· 6.3%

#c99b84

Secondary· 6.2%

#bdce46

Accent· 6%

#4e7182

Secondary· 4.7%

#ddc2b5

Secondary· 3.8%

#b47e73

Secondary· 3.4%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)analytics.tiktok.com(3)youtube.com(3)googletagmanager.com(3)siteimproveanalytics.com(1)

Website Identity

NMDP

Organization

NMDP is a global non-profit in cell therapy that facilitates blood stem cell transplants and bone marrow transplants. Our donor registry connects patients with bone marrow or stem cell donors.

+1-800-627-7692

www.nmdp.org

30 years old

500 N 5th St, Minneapolis

55401, Minneapolis, MN

Location detected: 🇺🇸 United States, Minneapolisvia schema_nap

Network Solutions, LLCen

Social Profiles

Facebook X (Twitter)Instagram LinkedIn TikTok

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Last analyzed: 10 May 2026 at 11:27

Historical Analysis & Change Tracking