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celestrak.org

https://celestrak.org· First analyzed 24 May 2026· Updated 24 May 2026
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celestrak.org
Desktop screenshot of celestrak.org
Mobile screenshot of celestrak.org
Mobile

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Hosting Provider

hostwinds.com

IP Address

104.168.149.178

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS54290

Organization

Hostwinds LLC

Server

Microsoft IIS

Nameservers

dns1.registrar-servers.com.dns2.registrar-servers.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
309 KB
10 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Hostwinds

Technology Stack

5 Technologies Detected

CSS Frameworks

2

Libraries

1

Web Servers

1

Languages

1

SEO Analysis

D42/100
11
11
2
Meta Tags4/15
Content10/12
Headings0/8
Technical9/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
celestrak.orgcelestrak.org

CelesTrak

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars (~53px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • Missing meta description — important for click-through rates in SERPs
  • Missing H1 tag — every page should have exactly one H1

Crawlability

Sitemap
robots.txt

33 rules

Local SEO

Local Search Readiness

2/100
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

F35/100
Bot Access
19/25
Machine Read.
11/25
Schema Data
0/25
Citation
5/25

AI Bot Access

13/14 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
Text ratio:26%
Words:402
Token eff.:Optimal
Sections/1K:5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 8w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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
65/100
7
Passed
5
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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
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...

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.
50/100
A+
38 mg
CO₂e / view
308.8 KB
Page Weight
90%
Cleaner Than
New Visitor
44 mg
vs
Returning (cached)
22 mg
Annual (10K/mo)
4.6 kg
Emission Segments
Data Center
9 mg
Network
9 mg
Device
21 mg
Resource Breakdown
JavaScript
52.7 KB
Images
83.0 KB
CSS
162.9 KB
HTML
10.1 KB
Green Hosting Not Verified
Hostwinds
5 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

0%Critical

No SSL

No WAF

N/A

HTTP Headers

Developer Console

content-length
10012
content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 23:22:17 GMT
server
Microsoft-IIS/10.0
x-powered-by
PHP/8.2.20
Good Warning Issue

Email Infrastructure

Google Workspace

Score

40

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx3.googlemail.com
aspmx.l.google.com
alt2.aspmx.l.google.com
aspmx2.googlemail.com

+1 more

Domain Information

celestrak.org

Domain Age
7y 4m

Created

11.01.2019

Expires

11.01.2030

Last Updated

23.01.2023

Registrar

NameCheap, Inc.

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.
D
55/100
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...

Typography & Readability

Verdana

WCAG AA
61/100
Readability
/30
16/30

13px · LH 1.50

Hierarchy
/20
9/20
WCAG
/25
22/25

5.62:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Verdana

Body Font

Verdana

Sans13px

Contrast Ratio

5.62:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.6:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Color Palette

6 unique colors
Light
#deecec
Primary· 69.1%
#f8d8db
Accent· 10.2%
#293b59
Secondary· 7.3%
#7ba19a
Secondary· 6.3%
#c5a3a5
Secondary· 4.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

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

5 Resources

3
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

local(3)

Website Identity

celestrak.org

Location detected: 🇺🇸 United Statesvia ip
NameCheap, Inc.📧 Google Workspace

Social Profiles

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Last analyzed: 24 May 2026 at 23:22

Historical Analysis & Change Tracking