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dnaftb.org

https://dnaftb.org· First analyzed 15 May 2026· Updated 15 May 2026
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dnaftb.org
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Mobile

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Hosting Provider

Cold Spring Harbor Laboratory

IP Address

143.48.220.35

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Cold Spring Harbor, United States

ASN

AS13748

Organization

Cold Spring Harbor Laboratory

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

vin.ns.cloudflare.com.jen.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
622 ms10%
Speed Index
809 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3 MB
64 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cold Spring Harbor Laboratory
CDN
Cloudflare

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Fonts

1
Google Fonts

Web Servers

1
Nginx

SEO Analysis

D46/100
12
9
3
Meta Tags8/15
Content9/12
Headings1/8
Technical7/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dnaftb.orgdnaftb.org

DNA from the Beginning - An animated primer of 75 experiments that ...

Discover the concepts and experiments that define the fields of genetics and molecular biology. This animated primer features the work of over 100 scientists...

Title truncated. Description truncated.
Title Length88 chars

Recommended: 50-60 chars (~547px / 580px)

Description Length174 chars

Recommended: 120-160 chars

Issues (3)

  • • Title is too long (88 chars, ~547px). Will be truncated in search results.
  • • Missing H1 tag — every page should have exactly one H1
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

379 URLs

robots.txt

Local SEO

Local Search Readiness

0/100
Poor
15 2

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

F37/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
7/25

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
def. lists
Text ratio:17%
Words:422
Token eff.:Optimal
Sections/1K:2.4
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 9w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
C
61/100
6
Passed
6
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
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.
3/100
F
376 mg
CO₂e / view
3.0 MB
Page Weight
30%
Cleaner Than
New Visitor
429 mg
vs
Returning (cached)
215 mg
Annual (10K/mo)
45.1 kg
Emission Segments
Data Center
84 mg
Network
90 mg
Device
202 mg
Resource Breakdown
JavaScript
1.1 KB
Images
2.8 MB
CSS
170.4 KB
Fonts
1.1 KB
HTML
15.7 KB
Green Hosting Not Verified
Cold Spring Harbor Laboratory
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

74d

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

30.04.2026

Valid Until

29.07.2026

Subject Alternative Names (4)

dnafromthebeginning.orgdnaftb.orgwww.dnafromthebeginning.orgwww.dnaftb.org

SHA-256 Fingerprint

F4:E5:F6:DC:D8:31:2C:B0:24:4A:D8:14:7C:F0:80:C3:35:1F:16:11...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
*
content-security-policy
frame-ancestors 'self' www.medecine.unige.ch;
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 23:10:27 GMT
server
nginx
set-cookie
DNALCSID
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

dnaftb.org

Domain Age
26y 7m

Created

04.10.1999

Expires

04.10.2026

Last Updated

05.10.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
D
41/100
Not 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.
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Georgia

WCAG Partial
44/100
Readability
/30
11/30

12px · LH 1.40

Hierarchy
/20
6/20
WCAG
/25
14/25

1.67:1 min contrast

Performance
/25
13/25

2 fonts · 2 req

Heading Font

Georgia

Serif

Body Font

Georgia

Serif12px

Contrast Ratio

1.67:1

22 issues

Reading Comfort

~136 CPL

Too wide
18px
h3
14px
h4
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

❌ Very long lines: ~136 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.7:1).

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

GGoogle FontsBuy on MyFontsFlesch 41

Color Palette

10 unique colors
Light
#e7e7f3
Background· 50.8%
#3f337f
Secondary· 13.700000000000001%
#c8c5e0
Secondary· 10.4%
#a09bc6
Primary· 6.9%
#847eb1
Secondary· 6.2%
#564d8d
Secondary· 4.4%
#b8b5cd
Secondary· 3.4%
#d1cdbd
Secondary· 1.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

6 Resources

3
Scripts
3
Styles
2
Async
0
Defer

Top Script Sources

ssl.google-analytics.com(1)local(1)googletagmanager.com(1)

Website Identity

dnaftb.org

26 years old
Location detected: 🇺🇸 United Statesvia ip
CSC Corporate Domains, Inc.

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Last analyzed: 15 May 2026 at 23:10

Historical Analysis & Change Tracking