StackOptic
Back to Search
pourlascience.fr favicon

pourlascience.fr

https://pourlascience.fr· First analyzed 30 Apr 2026· Updated 30 Apr 2026
Export
pourlascience.fr
Desktop screenshot of pourlascience.fr
Mobile screenshot of pourlascience.fr
Mobile

Sponsored

Hosting Provider

SDV

IP Address

212.95.72.192

Site Location

🇫🇷 Francevia tld

Server Location

🇫🇷 Strasbourg, France

ASN

AS8839

Server

Apache

CDN

Varnish

Nameservers

ns-191-c.gandi.net.ns-41-b.gandi.net.ns-7-a.gandi.net.

Performance

89

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
859 KB
77 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
SDV
CDN
Varnish

Technology Stack

13 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

2
jQuery
jQuery UI

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Advertising

2
TikTok PixelMicrosoft Advertising

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Languages

1
PHPv8.1.29

SEO Analysis

C68/100
19
7
1
Meta Tags15/15
Content11/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness2/4
Mobile4/4
Indexability3/3
P
pourlascience.frpourlascience.fr

Pour la Science - la science expliquée par ceux qui la font

Le magazine Pour la Science publie des articles approfondis, écrits en collaboration avec les chercheurs, sur les avancées de la recherche scientifique.

Title Length59 chars

Recommended: 50-60 chars (~348px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

5,000 URLs

robots.txt

6 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

F34/100
Bot Access
20/25
Machine Read.
2/25
Schema Data
0/25
Citation
12/25

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:7%
Words:3,486
Token eff.:Poor Structure
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary41w
Descriptive Headingsavg 8.8w
Canonical URL
Open Graph0/3
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.
C
63/100
10
Passed
5
Critical
1
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
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
42/100
B
106 mg
CO₂e / view
859.1 KB
Page Weight
80%
Cleaner Than
New Visitor
121 mg
vs
Returning (cached)
61 mg
Annual (10K/mo)
12.7 kg
Emission Segments
Data Center
24 mg
Network
26 mg
Device
57 mg
Resource Breakdown
JavaScript
204.5 KB
Images
8.1 KB
CSS
489.7 KB
HTML
156.8 KB
Green Hosting Not Verified
SDV
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

320d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.02.2026

Valid Until

16.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.pourlascience.frpourlascience.fr

SHA-256 Fingerprint

CE:51:B7:D7:A3:49:B1:BD:29:B7:F3:4E:30:26:5A:DE:67:5B:54:B1...

Top 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
🔴 No Cache(no-store, no-cache, must-revalidate, no-cache, private)
connection
keep-alive
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

pourlascience-fr.mail.protection.outlook.com

Domain Information

pourlascience.fr

Domain Age
28y 1m

Created

18.03.1998

Expires

28.02.2027

Last Updated

02.02.2026

Registrar

GANDI

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
Data Protection Officer mentioned

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
73/100
Mobile Friendly44 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

PTserif + Montserrat

WCAG AA
58/100
Readability
/30
23/30

16px · LH 1.50

Hierarchy
/20
7/20
WCAG
/25
20/25

4.94:1 min contrast

Performance
/25
8/25

4 fonts · 10 req

Heading Font

PTserif

Serif

Body Font

Montserrat

Sans16px

Contrast Ratio

4.94:1

WCAG AA (≥4.5:1)

Reading Comfort

~42 CPL

Narrow lines
32px
h2
24px
h3
19px
h4
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 21/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.9:1).

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

AAdobe FontsBuy on MyFontsFlesch 21

Color Palette

6 unique colors
2.68:1 Fail Light
#a0a0a0
Other· 43.2%
#59595a
Other· 28.299999999999997%
#607571
Primary· 4.9%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

3
Facebook PixelMid-Market
TikTok PixelMid-Market
Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Social Media

1
Facebook SDKFree

Social widgets and sharing tools

3

Categories

6

Total Tools

1

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

26 Resources

20
Scripts
6
Styles
11
Async
0
Defer

Top Script Sources

local(6)bat.bing.com(3)analytics.tiktok.com(3)connect.facebook.net(2)googletagmanager.com(2)

Website Identity

pourlascience.fr

28 years old
Location detected: 🇫🇷 Francevia tld
GANDI📧 Microsoft 365fr

Sponsored

Last analyzed: 30 Apr 2026 at 20:54

Historical Analysis & Change Tracking