StackOptic
Back to Search
aeronomie.be favicon

aeronomie.be

https://aeronomie.be· First analyzed 20 May 2026· Updated 20 May 2026
Export
aeronomie.be
Desktop screenshot of aeronomie.be
Mobile screenshot of aeronomie.be
Mobile

Sponsored

Hosting Provider

OMA

IP Address

193.190.231.229

Site Location

🇧🇪 Belgiumvia tld

Server Location

🇧🇪 Uccle, Belgium

ASN

AS2611

Organization

OMA

Server

Apache

Nameservers

ns.oma.be.ns3.oma.be.ns2.oma.be.

Performance

93

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%
661 KB
89 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

7 Technologies Detected

Libraries

1
jQuery UI

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

B70/100
20
5
1
Meta Tags13/15
Content11/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
A
aeronomie.beaeronomie.be

Home | Royal Belgian Institute for Space Aeronomy

Scientific research into the atmosphere of the Earth and other planets, and of outer space. Latest developments.

Title Length49 chars

Recommended: 50-60 chars (~296px / 580px)

Description Length112 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: standard

1,609 URLs

robots.txt

42 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
10/25
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:5%
Words:504
Token eff.:Optimal
Sections/1K:13.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary70w
Descriptive Headingsavg 1.6w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
A
81/100
13
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
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...
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.
39/100
B
82 mg
CO₂e / view
661.2 KB
Page Weight
80%
Cleaner Than
New Visitor
94 mg
vs
Returning (cached)
47 mg
Annual (10K/mo)
9.8 kg
Emission Segments
Data Center
18 mg
Network
20 mg
Device
44 mg
Resource Breakdown
JavaScript
83.1 KB
Images
290.8 KB
CSS
228.4 KB
Fonts
2.9 KB
HTML
56.0 KB
Green Hosting Not Verified
OMA
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

146d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

14.10.2025

Valid Until

14.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (12)

aeronomie.bewww.bisa.bebisa.bewww.bira-iasb.bewww.aeronomy.beiasb.beaeronomy.bebira-iasb.be+4 more

SHA-256 Fingerprint

28:E9:EE:5C:06:B9:3D:53:3A:95:04:F1:C1:9B:7E:26:66:E6:07:82...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(must-revalidate, no-cache, private)
connection
Keep-Alive
content-type
text/html; charset=UTF-8
content-language
en
date
Wed, 20 May 2026 07:28:43 GMT
expires
Sun, 19 Nov 1978 05:00:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mailserv.oma.be

Domain Information

aeronomie.be

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected

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.
B
72/100
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

Typography & Readability

Open Sans

WCAG Partial
66/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
18/25

1.88:1 min contrast

Performance
/25
16/25

1 font · 4 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1.88:1

2 issues

Reading Comfort

~38 CPL

Narrow lines
21px
h2
16px
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).

❌ Very complex text: Flesch score 26/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.9:1).

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

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

GGoogle FontsFlesch 26

Color Palette

6 unique colors
13.6:1 AAA Dark
#000000
Background· 26.3%
#cfd0d1
Other· 4.6%
#f2f3f5
Primary· 51.9%
#9baeb9
Secondary· 7.2%
#75848d
Secondary· 6.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

19 Resources

9
Scripts
10
Styles
1
Async
2
Defer

Top Script Sources

local(6)cdnjs.cloudflare.com(2)matomo.aeronomie.be(1)

Website Identity

aeronomie.be

Location detected: 🇧🇪 Belgiumvia tld
en

Sponsored

Last analyzed: 20 May 2026 at 15:07

Historical Analysis & Change Tracking