icrar.org

https://icrar.org· First analyzed 10 May 2026· Updated 10 May 2026

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icrar.org

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Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

108.138.7.121

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

LiteSpeed

CDN

CloudFront

Nameservers

rajeev.ns.cloudflare.com.adaline.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2 MB

64 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

systemic-icrarCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

Plugins

Cookie Notice Vfbp Display Entries Wp Media Category Management Vfb Pro

Analytics

Libraries

UI Components

Other

CSS Frameworks

Web Servers

SEO Analysis

A81/100

Meta Tags13/15

Content12/12

Headings3/8

Technical24/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

icrar.orgicrar.org

The International Centre for Radio Astronomy Research - ICRAR

Uncovering the hidden Universe through radio astronomy - a joint venture between Curtin University and The University of Western Australia supported by the S...

Description truncated.

Title Length61 chars

Recommended: 50-60 chars (~370px / 580px)

Description Length194 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

19/100

Poor

5 12 1

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

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

4/25

Citation

16/25

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

navheader/footer

Text ratio:5%

Words:663

Token eff.:Optimal

Sections/1K:6

Depth:2/5

Structured Data

4 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary31w

Descriptive Headingsavg 3.8w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

13/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 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.

51/100

203 mg

CO₂e / view

2.0 MB

Page Weight

50%

Cleaner Than

New Visitor

232 mg

Returning (cached)

116 mg

Annual (10K/mo)

24.4 kg

Emission Segments

Data Center

10 mg

Network

60 mg

Device

134 mg

Resource Breakdown

JavaScript

118.6 KB

Images

759.9 KB

CSS

1.1 MB

HTML

13.4 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

116d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.08.2025

Valid Until

03.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

icrar.orgwww.icrar.org

SHA-256 Fingerprint

97:15:E1:21:D6:73:E6:FF:16:49:61:04:54:9F:93:7B:C1:6E:87:04...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

13451

content-type

text/html; charset=UTF-8

date

Sun, 10 May 2026 00:17:09 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

icrar-org.mail.protection.outlook.com

Domain Information

icrar.org

Domain Age

21y 4m

Created

06.01.2005

Expires

06.01.2035

Last Updated

10.01.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

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.

74/100

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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

DINNextLTPro-Light + Sentinel SSm A

WCAG Partial

46/100

Readability

/30

14/30

14px · LH 2.00

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

9/25

3 fonts · 4 req

Heading Font

DINNextLTPro-Light

Sans

Body Font

Sentinel SSm A

Sans14px

Contrast Ratio

1:1

31 issues

Reading Comfort

~54 CPL

Optimal (45–75)

90px

24px

59px

14px

Minor Second

Scale

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~54 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 31 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFluid Type (rem)Flesch 33

Color Palette

11 unique colors

Dark

#2f292d

Other· 3.9%

#0b1f27

Primary· 24.000000000000004%

#ffffff

Primary· 0%

#095d66

Accent· 14.3%

#e1840d

Accent· 13.8%

#094853

Accent· 13.8%

#0a3541

Accent· 11%

#020609

Primary· 6.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

icrar.org(11)gstatic.com(1)ajax.googleapis.com(1)googletagmanager.com(1)google.com(1)

Website Identity

The International Centre for Radio Astronomy Research - ICRAR

Uncovering the hidden Universe through radio astronomy - a joint venture between Curtin University and The University of Western Australia supported by the State Government of Western Australia.

www.icrar.org/

21 years old

Location detected: 🇩🇪 Germanyvia ip

GoDaddy.com, LLC📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 10 May 2026 at 00:17

Historical Analysis & Change Tracking