spacereference.org

https://spacereference.org· First analyzed 29 May 2026· Updated 29 May 2026

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spacereference.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.13.137

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lily.ns.cloudflare.com.hank.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

495 ms10%

Speed Index

644 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

742 KB

18 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

CSS Frameworks

Analytics

CDN

SEO Analysis

D51/100

Meta Tags10/15

Content11/12

Headings8/8

Technical8/21

E-E-A-T0/7

Images0/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

spacereference.orgspacereference.org

Comprehensive Asteroid and Comet Database | Space Reference

No description available for this page.

Title Length59 chars

Recommended: 50-60 chars (~364px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

5/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F36/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

6/25

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:16%

Words:1,550

Token eff.:Optimal

Sections/1K:5.2

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary32w

Descriptive Headingsavg 2.1w

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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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

20/20

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

Semantic Structure

12/20

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

6/15

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.

60/100

75 mg

CO₂e / view

742.2 KB

Page Weight

80%

Cleaner Than

New Visitor

86 mg

Returning (cached)

43 mg

Annual (10K/mo)

9.0 kg

Emission Segments

Data Center

4 mg

Network

22 mg

Device

49 mg

Resource Breakdown

JavaScript

708.1 KB

Images

2.8 KB

CSS

24.0 KB

HTML

7.3 KB

Green Hosting Verified

Cloudflare

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

WAF

67d

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

07.05.2026

Valid Until

05.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

spacereference.org*.spacereference.org

SHA-256 Fingerprint

61:41:55:70:C4:4F:1D:36:80:E5:51:5F:11:45:95:1B:0F:38:4B:BD...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

60317

alt-svc

h3=":443"; ma=86400

cache-control

🟡 2 Hours(max-age=7200)

cf-cache-status

HIT

cf-ray🇫🇷 Paris

a03341372df37ad7-CDG

content-encoding

zstd

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

spacereference.org

Domain Age

7y 5m

Created

27.12.2018

Expires

27.12.2026

Last Updated

17.12.2025

Registrar

Squarespace Domains II LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

69/100

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

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

79/100

Readability

/30

22/30

14px · LH 1.43

Hierarchy

/20

20/20

2.57x ratio · ✓ H1→H6

WCAG

/25

17/25

1.95:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

-apple-system

Sans36px

Body Font

-apple-system

Sans14px

Contrast Ratio

1.95:1

17 issues

Reading Comfort

~43 CPL

Narrow lines

36px

30px

24px

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 1.9:1).

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

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 59

Color Palette

4 unique colors

21:1 AAA Dark

#000000

Background· 57.400000000000006%

#ffffff

Primary· 36.099999999999994%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)googletagmanager.com(2)embed.doorbell.io(2)google-analytics.com(1)

Website Identity