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gazebosim.org

https://gazebosim.org· First analyzed 11 May 2026· Updated 11 May 2026
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gazebosim.org
Desktop screenshot of gazebosim.org
Mobile screenshot of gazebosim.org
Mobile

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Hosting Provider

GitHub Pages
pages.github.com

IP Address

185.199.110.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

ns-394.awsdns-49.com.ns-518.awsdns-00.net.ns-1356.awsdns-41.org.ns-1713.awsdns-22.co.uk.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.7 MB
22 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Ghost

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Frameworks

1
Angularv14.3.0

Icon Libraries

1
Material Icons

Fonts

1
Google Fonts

SEO Analysis

F39/100
12
10
2
Meta Tags5/15
Content0/12
Headings4/8
Technical15/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
G
gazebosim.orggazebosim.org

Gazebo

A robotics design, development, and simulation suite.

Title Length6 chars

Recommended: 50-60 chars (~40px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (1 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (11/11) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

143 URLs

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

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.

Sponsored

AI & LLM Readiness

F23/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
0/25
Citation
2/25

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
Text ratio:0%
Words:205
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
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...
Upgrade to view recommendations

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.
C
61/100
7
Passed
6
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
12/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
7/15
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.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
20/100
F
1.35 g
CO₂e / view
10.7 MB
Page Weight
5%
Cleaner Than
New Visitor
1.55 g
vs
Returning (cached)
773 mg
Annual (10K/mo)
162.2 kg
Emission Segments
Data Center
302 mg
Network
325 mg
Device
726 mg
Resource Breakdown
JavaScript
341.0 KB
Images
1.7 MB
CSS
8.7 MB
HTML
4.2 KB
Green Hosting Not Verified
GitHub Pages
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.05.2026

Valid Until

07.08.2026

Subject Alternative Names (1)

gazebosim.org

SHA-256 Fingerprint

F2:DA:06:F5:95:95:1C:69:81:69:C7:4E:7B:9E:C4:E6:C7:3C:22:57...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
access-control-allow-origin
*
age
0
cache-control
🟡 600s(max-age=600)
content-encoding
📦 Gzip(gzip)
content-length
3972
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

gazebosim.org

Domain Age
15y 1m

Created

30.03.2011

Expires

30.03.2027

Last Updated

31.03.2026

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
C
63/100
Mobile Friendly12 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...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial
79/100
Readability
/30
27/30

20px · LH 1.60

Hierarchy
/20
14/20

2.4x ratio

WCAG
/25
17/25

1.99:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Roboto

Sans48px

Body Font

Roboto

Sans20px

Contrast Ratio

1.99:1

17 issues

Reading Comfort

~49 CPL

Optimal (45–75)
48px
h1
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~49 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 2.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

Flesch 39

Color Palette

13 unique colors
4.08:1 AA Large Light
#e0e0e0
Other· 15.7%
#6c6a69
Other· 4%
#9e6d58
Secondary· 12%
#745344
Secondary· 9.1%
#aaa298
Secondary· 6.6%
#2b303e
Secondary· 6.3%
#141419
Secondary· 5.8%
#f8f1f1
Primary· 4.5%

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

7 Resources

5
Scripts
2
Styles
1
Async
1
Defer

Top Script Sources

googletagmanager.com(1)runtime.1423ce2e84ce5652.js(1)polyfills.0b2dc2934fc02624.js(1)scripts.741918227cf5d3e3.js(1)main.f9810e8965cec185.js(1)

Website Identity

gazebosim.org

15 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLCen

Social Profiles

GitHub

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Last analyzed: 11 May 2026 at 18:30

Historical Analysis & Change Tracking