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spacecenter.org

https://spacecenter.org· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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spacecenter.org
Desktop screenshot of spacecenter.org
Mobile screenshot of spacecenter.org
Mobile

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Hosting Provider

GoDaddy
godaddy.com

IP Address

160.153.0.84

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Tempe, United States

ASN

AS209242

Organization

GoDaddy.com, LLC

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns07.domaincontrol.com.ns08.domaincontrol.com.

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.3 s10%
Speed Index
1.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.5 MB
180 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.5
cms
Hello Elementorv3.0.1
by Elementor Team
View Theme

Technology Stack

31 Technologies Detected

Plugins

14
Events Calendar Pro
Dynamic Visibility For Elementor
Google Language TranslatorSvg SupportThe Events Calendar
Elementor
Event Single Page Builder ProTribe Ext Event Progress Bar
Elementor
Elementor
Ele Custom SkinEvents Widgets Pro
WooCommerce
Yoast SEO

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

2
jQueryv3.7.1
jQuery UI

Other

2
GSAPv2.1.3Lottie

CSS Frameworks

2
Bootstrap
Tailwind CSS

Advertising

2
Google AdsLinkedIn Ads

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Email Marketing

1
Mailchimp

CDN

1
Cloudflare

SEO Analysis

B78/100
22
7
2
Meta Tags12/15
Content10/12
Headings3/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
S
spacecenter.orgspacecenter.org

Space Center Houston | Bringing people & space closer together

Visit and immerse yourself in the past, present and future of space exploration.

Title Length62 chars

Recommended: 50-60 chars (~373px / 580px)

Description Length80 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (29/46) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

16 rules

Local SEO

Local Search Readiness

26/100
Needs Work
7 10

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AI & LLM Readiness

D52/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
8/25
Citation
14/25

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:3%
Words:2,576
Token eff.:Optimal
Depth:1/5

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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
84/100
14
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
10/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
18/100
F
823 mg
CO₂e / view
6.5 MB
Page Weight
5%
Cleaner Than
New Visitor
940 mg
vs
Returning (cached)
470 mg
Annual (10K/mo)
98.7 kg
Emission Segments
Data Center
184 mg
Network
197 mg
Device
441 mg
Resource Breakdown
JavaScript
417.9 KB
Images
3.1 MB
CSS
2.9 MB
Fonts
3.4 KB
HTML
34.3 KB
Green Hosting Not Verified
GoDaddy
8 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

WAF

65d

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

03.04.2026

Valid Until

02.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

spacecenter.org

SHA-256 Fingerprint

C1:C5:06:DA:BD:62:42:86:9A:52:23:40:1D:B0:ED:D0:69:EB:EA:4F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🔵 Public(public)
cf-cache-status
DYNAMIC
cf-ray
9f3441a53982f56e-SJC
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

spacecenter-org-1.fortimailcloud.com
spacecenter-org-2.fortimailcloud.com

Domain Information

spacecenter.org

Domain Age
30y 2m

Created

23.02.1996

Expires

24.02.2033

Last Updated

28.08.2024

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
82/100
Mobile Friendly21 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...
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Typography & Readability

Alliance

WCAG Partial
56/100
Readability
/30
25/30

16px · LH 1.50

Hierarchy
/20
7/20
WCAG
/25
13/25

1:1 min contrast

Performance
/25
11/25

1 font · 7 req

Heading Font

Alliance

Sans

Body Font

Alliance

Sans16px

Contrast Ratio

1:1

13 issues

Reading Comfort

~39 CPL

Narrow lines
100px
h2
18px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

GGoogle FontsBuy on MyFonts

Color Palette

6 unique colors
Dark
#505360
Secondary· 7.3%
#000014
Primary· 63%
#363745
Secondary· 9.7%
#181820
Secondary· 7.2%
#272a38
Secondary· 7.1%
#a1a8b4
Secondary· 5.7%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

1
MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

2
Facebook PixelMid-Market
LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

3

Categories

5

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
11
Async
1
Defer

Top Script Sources

spacecenter.org(7)connect.facebook.net(3)googletagmanager.com(2)snap.licdn.com(1)google-analytics.com(1)

Website Identity

Space Center Houston

Space Center Houston

Organization

Gateway to NASA Johnson Space Center

spacecenter.org/
30 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLCen

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Last analyzed: 28 Apr 2026 at 07:12

Historical Analysis & Change Tracking