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nautilus.org

https://nautilus.org· First analyzed 07 May 2026· Updated 07 May 2026
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nautilus.org
Desktop screenshot of nautilus.org
Mobile screenshot of nautilus.org
Mobile

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Hosting Provider

WP Engine
wpengine.com

IP Address

141.193.213.11

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

josh.ns.cloudflare.com.maya.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
261 ms10%
Speed Index
339 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
21 KB
55 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
nautilus-blueCustom

Technology Stack

13 Technologies Detected

Plugins

6
Widget LogicFacebook Pagelike WidgetWp PagenaviPage Links To
WooCommerce
Jetpack

Libraries

1
jQueryv3.7.1

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Advertising

1
Google Ads

CDN

1
Cloudflare

SEO Analysis

D55/100
17
7
4
Meta Tags4/15
Content11/12
Headings6/8
Technical17/25
E-E-A-T2/7
Images3/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability0/3
N
nautilus.orgnautilus.org

Search this site... | Nautilus Institute for Security and Sustainab...

No description available for this page.

Title truncated.
Title Length72 chars

Recommended: 50-60 chars (~413px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

  • • Title is too long (72 chars, ~413px). Will be truncated in search results.
  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (10/15) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

6 rules

Sitemap reference found

Local SEO

Local Search Readiness

25/100
Needs Work
7 11

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AI & LLM Readiness

D47/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
6/25
Citation
5/25

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
nav
Text ratio:8%
Words:1,226
Token eff.:Optimal
Depth:1/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary705w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
65/100
13
Passed
3
Critical
3
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
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.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
75/100
A+
2 mg
CO₂e / view
21.4 KB
Page Weight
95%
Cleaner Than
New Visitor
3 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
264 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
JavaScript
543 B
HTML
12.7 KB
Other
8.2 KB
Green Hosting Verified
Google Cloud
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

WAF

71d

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

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (1)

nautilus.org

SHA-256 Fingerprint

3A:37:B3:94:3A:1F:3E:18:E1:D3:3B:58:62:77:63:0F:D9:55:AF:A6...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
https://nautilus.org
alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray
9f8419d46d304d07-BOS
content-encoding
⚡ Brotli(br)
Good Warning Issue

Email Infrastructure

Google Workspace

Score

70

SPF
DKIM
DMARC

MX Records (5)

alt1.aspmx.l.google.com
aspmx.l.google.com
alt2.aspmx.l.google.com
aspmx2.googlemail.com

+1 more

Domain Information

nautilus.org

Domain Age
30y 9m

Created

09.08.1995

Expires

08.08.2027

Last Updated

18.03.2026

Registrar

GoDaddy.com, LLC

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.
C
61/100
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=1200
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

OpenSansSemibold + OpenSansRegular

WCAG Partial
52/100
Readability
/30
8/30

12px · LH 1.75

Hierarchy
/20
16/20

3x ratio · ✓ H1→H6

WCAG
/25
17/25

1.67:1 min contrast

Performance
/25
11/25

2 fonts · 5 req

Heading Font

OpenSansSemibold

Sans36px

Body Font

OpenSansRegular

Sans12px

Contrast Ratio

1.67:1

16 issues

Reading Comfort

~145 CPL

Too wide
36px
h1
12px
p

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

❌ Very long lines: ~145 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.7:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

Buy on MyFontsFlesch 34

Color Palette

7 unique colors
Light
#ffffff
Background· 60.2%
#09436b
Primary· 13.6%
#7b93a6
Secondary· 7.1%
#03355a
Accent· 5.5%
#395e7b
Secondary· 1.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
AddThisFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

26 Resources

16
Scripts
10
Styles
3
Async
1
Defer

Top Script Sources

nautilus.org(7)google.com(2)partner.googleadservices.com(1)cse.google.com(1)ssl.google-analytics.com(1)

Website Identity

Nautilus Institute for Security and Sustainability

Organization

We hold that it is possible to build peace, create security, and restore sustainability for all people in our time.

nautilus@nautilus.org
nautilus.org/
30 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLC📧 Google Workspaceen-US

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Last analyzed: 07 May 2026 at 23:46

Historical Analysis & Change Tracking