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imagej.net

https://imagej.net· First analyzed 03 May 2026· Updated 03 May 2026
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imagej.net
Desktop screenshot of imagej.net
Mobile screenshot of imagej.net
Mobile

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Hosting Provider

University of Wisconsin Madison

IP Address

144.92.48.180

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 DeForest, United States

ASN

AS59

Organization

University of Wisconsin Madison

Server

GitHub.com

CDN

Fastly

Nameservers

ns2.iwantmyname.net.ns3.iwantmyname.net.ns1.iwantmyname.net.ns4.iwantmyname.net.

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%
2.4 MB
50 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Fastly

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Libraries

1
jQuery

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

SEO Analysis

C61/100
17
8
1
Meta Tags7/15
Content12/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
I
imagej.netimagej.net

ImageJ Wiki

The ImageJ wiki is a community-edited knowledge base on topics relating to ImageJ, a public domain program for processing and analyzing scientific images, an...

Description truncated.
Title Length11 chars

Recommended: 50-60 chars (~67px / 580px)

Description Length238 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (17/23) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,673 URLs

robots.txt

1 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.

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
0/25
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:15%
Words:797
Token eff.:Optimal
Sections/1K:6.3
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary27w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
80/100
13
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
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
5/15
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.
25/100
E
299 mg
CO₂e / view
2.4 MB
Page Weight
30%
Cleaner Than
New Visitor
342 mg
vs
Returning (cached)
171 mg
Annual (10K/mo)
35.9 kg
Emission Segments
Data Center
67 mg
Network
72 mg
Device
161 mg
Resource Breakdown
JavaScript
367.7 KB
Images
340.9 KB
CSS
1.7 MB
HTML
6.2 KB
Green Hosting Not Verified
University of Wisconsin Madison
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

40d

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/1.1

Valid From

14.03.2026

Valid Until

12.06.2026

Subject Alternative Names (1)

imagej.net

SHA-256 Fingerprint

0C:DB:25:08:17:57:D9:F5:A9:9E:F1:DA:54:2F:F4:9C:DC:1F:0D:96...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
access-control-allow-origin
*
age
251
cache-control
🟡 600s(max-age=600)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
Good Warning Issue

Email Infrastructure

Forward Email

Score

50

SPF
DKIM
DMARC

MX Records (2)

mx2.forwardemail.net
mx1.forwardemail.net

Domain Information

imagej.net

Domain Age
15y 1m

Created

11.03.2011

Expires

11.03.2027

Last Updated

10.03.2026

Registrar

1API GmbH

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.
C
67/100
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, maximum-scale=3
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica

WCAG Partial
63/100
Readability
/30
25/30

19px · LH 1.50

Hierarchy
/20
9/20

1.46x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
13/25

2 fonts · 3 req

Heading Font

Helvetica

Sans28px

Body Font

Helvetica

Sans19px

Contrast Ratio

1:1

9 issues

Reading Comfort

~37 CPL

Narrow lines
28px
h1
26px
h2
17px
h3
19px
p

✅ Excellent readability: 19px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 7/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 7

Color Palette

10 unique colors
7.46:1 AAA Dark
#555555
Text· 18.5%
#ffffff
Primary· 3.8%
#4f84b0
Secondary· 67.3%
#799aae
Secondary· 2.5%
#6d6454
Secondary· 1.9%
#e0e9e6
Secondary· 1.1%
#37a0bf
Accent· 0.9%
#67849d
Secondary· 0.8%

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

29 Resources

19
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

local(14)cdn.jsdelivr.net(5)

Website Identity

imagej.net

15 years old
Location detected: 🇺🇸 United Statesvia ip
1API GmbH📧 Forward Emailen

Social Profiles

X (Twitter)GitHub

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Last analyzed: 03 May 2026 at 03:40

Historical Analysis & Change Tracking