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nineplanets.org

https://nineplanets.org· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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nineplanets.org
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Mobile

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Hosting Provider

cloudflare.com

IP Address

172.67.173.100

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

henry.ns.cloudflare.com.gina.ns.cloudflare.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
982 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
664 KB
55 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
GeneratePressv3.3.1
by Tom Usborne
View Theme

SEO Analysis

B79/100
23
6
1
Meta Tags12/15
Content6/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
N
nineplanets.orgnineplanets.org

The Nine Planets of The Solar System | Eight Planets Without Pluto

An overview of the history, mythology and current scientific knowledge of the planets, moons and other objects in our solar system.

Title Length66 chars

Recommended: 50-60 chars (~397px / 580px)

Description Length131 chars

Recommended: 120-160 chars

Issues (1)

  • Most images missing alt text (21/22) — critical for accessibility and SEO

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

10 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100
Poor
4 13

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

D53/100
Bot Access
20/25
Machine Read.
11/25
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:0%
Words:995
Token eff.:Optimal
Depth:1/5

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary
Descriptive Headingsavg 21w
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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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.
A
85/100
13
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
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
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
66/100
A
67 mg
CO₂e / view
664.0 KB
Page Weight
80%
Cleaner Than
New Visitor
77 mg
vs
Returning (cached)
38 mg
Annual (10K/mo)
8.1 kg
Emission Segments
Data Center
3 mg
Network
20 mg
Device
44 mg
Resource Breakdown
JavaScript
282.7 KB
Images
208.5 KB
CSS
48.8 KB
Fonts
8.9 KB
HTML
20.4 KB
Other
94.6 KB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • Carbon footprint recommendation preview...
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

12.03.2026

Valid Until

10.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

nineplanets.org*.nineplanets.org

SHA-256 Fingerprint

9D:3F:5C:2F:28:C9:F7:CC:43:4B:D2:41:B7:F3:20:24:98:AF:5D:32...

Recommendations

Security recommendation preview

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray
9f28489dada734c3-SJC
content-encoding
zstd
content-type
text/html; charset=UTF-8
date
Sun, 26 Apr 2026 20:19:40 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (5)

eforward1.registrar-servers.com
eforward4.registrar-servers.com
eforward5.registrar-servers.com
eforward2.registrar-servers.com

+1 more

Domain Information

nineplanets.org

Domain Age
25y 10m

Created

07.06.2000

Expires

07.06.2029

Last Updated

06.03.2023

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
A
86/100
Mobile Friendly8 breakpoints
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
1 recommendation
  • Mobile compatibility recommendation preview...

Typography & Readability

Lato

WCAG Partial
66/100
Readability
/30
22/30

22px · LH 1.50

Hierarchy
/20
15/20

1.82x ratio · ✓ H1→H6

WCAG
/25
16/25

2.74:1 min contrast

Performance
/25
13/25

1 font · 6 req

Heading Font

Lato

Sans40px

Body Font

Lato

Sans22px

Contrast Ratio

2.74:1

5 issues

Reading Comfort

Single Font Family

left aligned
40px
h1
30px
h2
20px
h3
22px
p

✅ Excellent readability: 22px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.7:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle FontsFlesch 47

Color Palette

5 unique colors
Light
#ffffff
Background· 34%
#1c3651
Primary· 42.3%
#c8cfd5
Secondary· 1.6%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google AdSense

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Scripts & Styles

22 Resources

12
Scripts
10
Styles
5
Async
1
Defer

Top Script Sources

nineplanets.org(5)pagead2.googlesyndication.com(2)googletagmanager.com(2)google-analytics.com(1)static.getclicky.com(1)

Website Identity

The Nine Planets

The Nine Planets

Organization

An overview of the history, mythology and current scientific knowledge of the planets, moons and other objects in our solar system.

nineplanets.org/
25 years old
Location detected: 🇨🇦 Canadavia ip
NameCheap, Inc.en-US

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Last analyzed: 26 Apr 2026 at 20:20

Historical Analysis & Change Tracking