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astronomy.net

https://astronomy.net· First analyzed 21 May 2026· Updated 21 May 2026
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astronomy.net
Desktop screenshot of astronomy.net
Mobile screenshot of astronomy.net
Mobile

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Hosting Provider

SourceDNS

IP Address

67.225.255.65

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Lansing, United States

ASN

AS32244

Organization

SourceDNS

Server

Apache

Nameservers

ns-78-a.gandi.net.ns-68-b.gandi.net.ns-122-c.gandi.net.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
775 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
566 KB
10 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
GeneratePressv3.6.1
by Tom Usborne
View Theme

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apachev2.4.58

Plugins

1
Gp Premium

SEO Analysis

C67/100
20
10
1
Meta Tags9/15
Content5/12
Headings8/8
Technical20/25
E-E-A-T3/7
Images3/7
Links4/5
URL5/5
Social0/5
Freshness4/4
Mobile3/4
Indexability3/3
A
astronomy.netastronomy.net

Astronomy Net – Astronomy tales from affable amateur astronomers.

No description available for this page.

Title Length65 chars

Recommended: 50-60 chars (~410px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

7 rules

Local SEO

Local Search Readiness

3/100
Poor
1 14 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

F38/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
2/25
Citation
9/25

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
navheader/footer
Text ratio:3%
Words:158
Token eff.:Too Short
Sections/1K:38
Depth:2/5

Structured Data

Microdata
Person×1.3microdata

Citation Readiness

Opening Summary18w
Descriptive Headingsavg 2.3w
Canonical URL
Open Graph0/3
Twitter Card0/3
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
89/100
14
Passed
0
Critical
0
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
15/15
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.
54/100
A
70 mg
CO₂e / view
566.2 KB
Page Weight
80%
Cleaner Than
New Visitor
80 mg
vs
Returning (cached)
40 mg
Annual (10K/mo)
8.4 kg
Emission Segments
Data Center
16 mg
Network
17 mg
Device
38 mg
Resource Breakdown
JavaScript
2.1 KB
Images
541.4 KB
CSS
13.1 KB
HTML
9.6 KB
Green Hosting Not Verified
SourceDNS
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

57d

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/1.1

Valid From

18.04.2026

Valid Until

17.07.2026

Subject Alternative Names (1)

astronomy.net

SHA-256 Fingerprint

BF:CA:AA:CC:39:17:9B:95:A9:5B:B9:16:A8:DA:4F:11:0B:5D:80:36...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
9546
content-type
text/html; charset=UTF-8
date
Thu, 21 May 2026 04:45:19 GMT
keep-alive
timeout=5, max=100
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

spool.mail.gandi.net
fb.mail.gandi.net

Domain Information

astronomy.net

Domain Age
29y 8m

Created

02.09.1996

Expires

01.09.2026

Last Updated

16.02.2026

Registrar

Gandi SAS

DNSSEC
Not Enabled

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.
B
78/100
Mobile Friendly5 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
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

-apple-system

WCAG AA
86/100
Readability
/30
24/30

17px · LH 1.50

Hierarchy
/20
19/20

2.65x ratio · ✓ H1→H6

WCAG
/25
22/25

4.61:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

-apple-system

Sans45px

Body Font

-apple-system

Sans17px

Contrast Ratio

4.61:1

WCAG AA (≥4.5:1)

Reading Comfort

~34 CPL

Narrow lines
45px
h1
30px
h2
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Flesch 43

Color Palette

9 unique colors
15.91:1 AAA Light
#ffffff
Background· 57.6%
#222222
Text· 7.5%
#020304
Primary· 7.9%
#001151
Accent· 3.5%
#dde1e4
Secondary· 1.9%
#102448
Accent· 0.4%

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

1
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

astronomy.net(1)

Website Identity

astronomy.net

29 years old
Location detected: 🇺🇸 United Statesvia ip
Gandi SASen-US

Social Profiles

Facebook

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Last analyzed: 21 May 2026 at 04:45

Historical Analysis & Change Tracking