rarechromo.org

https://rarechromo.org· First analyzed 19 May 2026· Updated 19 May 2026

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rarechromo.org

Mobile

Sponsored

Hosting Provider

IONOS (1&1)

ionos.com

IP Address

217.160.0.100

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1126.ui-dns.biz.ns1100.ui-dns.org.ns1123.ui-dns.de.ns1074.ui-dns.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

728 ms10%

Speed Index

946 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

10.4 MB

140 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

uniqueCustom

Technology Stack

24 Technologies Detected

Plugins

Instagram Feed Cf7 Submissions

Contact Form 7

Custom Twitter Feeds Give Give Gift Aid Give Currency Switcher Cf7 Conditional Fields

Google Analytics For Wordpress

Libraries

CSS Frameworks

Analytics

Frameworks

UI Components

Icon Libraries

Fonts

Web Servers

Security

SEO Analysis

B78/100

Meta Tags4/15

Content10/12

Headings8/8

Technical22/25

E-E-A-T5/7

Images5/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

rarechromo.orgrarechromo.org

Home - Unique

No description available for this page.

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

7 issues found

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Crawlability

Sitemap

Type: index

11 URLs

11 sub-sitemaps

robots.txt

8 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

20/100

Needs Work

6 11

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

7/25

Citation

14/25

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

header/footer

Text ratio:3%

Words:820

Token eff.:Optimal

Sections/1K:19.5

Depth:1/5

Structured Data

7 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary43w

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 (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.

72/100

Passed

Critical

Warnings

Images & Alt Text

13/20

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

Semantic Structure

15/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

8/15

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

10/15

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.

31/100

1.08 g

CO₂e / view

10.4 MB

Page Weight

Cleaner Than

New Visitor

1.23 g

Returning (cached)

616 mg

Annual (10K/mo)

129.3 kg

Emission Segments

Data Center

53 mg

Network

317 mg

Device

708 mg

Resource Breakdown

JavaScript

3.6 MB

Images

413.4 KB

CSS

6.3 MB

Fonts

3.7 KB

HTML

41.7 KB

Other

1.8 KB

Green Hosting Verified

IONOS SE

GWF Verified

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

127d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

13.03.2026

Valid Until

23.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.rarechromo.orgrarechromo.org

SHA-256 Fingerprint

3D:2D:CB:21:FB:54:C9:1A:37:79:56:34:61:5D:A5:BB:AB:8D:59:83...

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-type

text/html; charset=UTF-8

date

Tue, 19 May 2026 08:43:10 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

link

<https://rarechromo.org/wp-json/>; rel="https://api.w.org/",...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

rarechromo-org.mail.protection.outlook.com

Domain Information

rarechromo.org

Domain Age

25y 7m

Created

27.09.2000

Expires

27.09.2026

Last Updated

11.11.2025

Registrar

IONOS SE

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.

60/100

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, user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Barlow

WCAG Partial

60/100

Readability

/30

24/30

18px · LH 1.40

Hierarchy

/20

8/20

1.33x ratio

WCAG

/25

10/25

3.36:1 min contrast

Performance

/25

18/25

1 font · 4 req

Heading Font

Barlow

Sans24px

Body Font

Barlow

Sans18px

Contrast Ratio

3.36:1

12 issues

Reading Comfort

~35 CPL

Narrow lines

24px

35px

21px

18px

Minor Second

Scale

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 3.4:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

GGoogle FontsFlesch 51

Color Palette

10 unique colors

Light

#ffffff

Background· 44.3%

#5218ff

Primary· 35.4%

#ed1941

Primary· 8.4%

#9f66c8

Secondary· 3.6%

#a9a3da

Secondary· 3%

#e9c7d9

Secondary· 2.6%

#6d1add

Accent· 1.5%

#b8117b

Accent· 0.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

rarechromo.org(11)googletagmanager.com(5)gstatic.com(2)google-analytics.com(1)google.com(1)

Website Identity

Unique

Organization

Understanding Rare Chromosome and Gene Disorders

[email protected]

01883723356

rarechromo.org/

25 years old

Location detected: 🇩🇪 Germanyvia ip

IONOS SE📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram

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Last analyzed: 19 May 2026 at 08:43

Historical Analysis & Change Tracking