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vusec.net

https://vusec.net· First analyzed 15 May 2026· Updated 15 May 2026
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vusec.net
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Mobile

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Hosting Provider

Gandi
gandi.net

IP Address

217.70.184.55

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS29169

Organization

Gandi France L/B Services

Server

CloudFront

CDN

CloudFront

Nameservers

ns-72-b.gandi.net.ns-147-c.gandi.net.ns-35-a.gandi.net.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
35 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Twenty Fourteenv4.4
by the WordPress team
View Theme

Technology Stack

10 Technologies Detected

Plugins

5
Email Encoder BundleTeam Members
Google Analytics For Wordpress
Simple Share Buttons Adder
Yoast SEO

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

CDN

1
Amazon CloudFront

SEO Analysis

B78/100
23
6
1
Meta Tags7/15
Content11/12
Headings6/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
V
vusec.netvusec.net

About VUSec - vusec

VUSec is the Systems and Network Security Group at Vrije Universiteit Amsterdam and one of the larger groups in the Computer Science department at the VU. Ou...

Description truncated.
Title Length19 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length393 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (6/8) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

18/100
Poor
5 12

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

D56/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
8/25
Citation
17/25

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:6%
Words:743
Token eff.:Optimal
Sections/1K:5.4
Depth:2/5

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary62w
Descriptive Headingsavg 3.2w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
B
73/100
10
Passed
5
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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
11/15
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.
70/100
B
139 mg
CO₂e / view
1.3 MB
Page Weight
70%
Cleaner Than
New Visitor
158 mg
vs
Returning (cached)
79 mg
Annual (10K/mo)
16.6 kg
Emission Segments
Data Center
7 mg
Network
41 mg
Device
91 mg
Resource Breakdown
JavaScript
44.1 KB
Images
1.1 MB
CSS
154.6 KB
HTML
16.4 KB
Green Hosting Verified
Gandi
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

90%Excellent
Interactive

HTTPS

No WAF

158d

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

06.04.2026

Valid Until

20.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.vusec.net

SHA-256 Fingerprint

94:7B:C8:32:9D:A1:F3:4B:5F:02:49:0C:25:B6:75:9E:AC:BF:98:40...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
3396
cache-control
🟡 1 Hours(max-age=3600)
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-inline' 'unsaf...
content-type
text/html; charset=UTF-8
cross-origin-embedder-policy
unsafe-none
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

fb.mail.gandi.net
spool.mail.gandi.net

Domain Information

vusec.net

Domain Age
10y 1m

Created

18.03.2016

Expires

18.03.2028

Last Updated

20.08.2025

Registrar

Gandi SAS

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.
B
79/100
Mobile Friendly2 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=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lato

WCAG Partial
67/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
10/20

2.06x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
16/25

1 font · 5 req

Heading Font

Lato

Sans33px

Body Font

Lato

Sans16px

Contrast Ratio

1:1

34 issues

Reading Comfort

~41 CPL

Narrow lines
33px
h1
18px
h2
22px
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).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 34 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

Buy on MyFontsFlesch 44

Color Palette

9 unique colors
21:1 AAA Light
#ffffff
Background· 43.4%
#000000
Background· 34.5%
#1287ca
Primary· 7.9%
#99b0bb
Secondary· 3.4%
#2f3039
Secondary· 2.5%
#050f16
Accent· 1.2%
#5987a2
Secondary· 1.2%

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

21 Resources

12
Scripts
9
Styles
6
Async
2
Defer

Top Script Sources

local(6)googletagmanager.com(3)google-analytics.com(1)feedgrabbr.com(1)download.vusec.net(1)

Website Identity

VUSec Systems Security Research Group at VU University Amsterdam

VUSec Systems Security Research Group at VU University Amsterdam

Organization

Systems and Network Security Group at VU Amsterdam

www.vusec.net/
10 years old
Location detected: 🇫🇷 Francevia ip
Gandi SASen-US

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Last analyzed: 15 May 2026 at 14:14

Historical Analysis & Change Tracking