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erg.school

https://erg.school· First analyzed 29 May 2026· Updated 29 May 2026
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erg.school
Desktop screenshot of erg.school
Mobile screenshot of erg.school
Mobile

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Hosting Provider

OVHcloud
ovhcloud.com

IP Address

152.228.175.213

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Gravelines, France

ASN

AS16276

Organization

OVH

Server

Nginx

Nameservers

ns-47-c.gandi.net.ns-3-b.gandi.net.ns-126-a.gandi.net.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
947 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
303 KB
12 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
OVHcloud

Technology Stack

2 Technologies Detected

Libraries

1
jQuery

Web Servers

1
Nginxv1.14.2

SEO Analysis

F36/100
8
9
3
Meta Tags7/15
Content4/12
Headings0/8
Technical8/21
E-E-A-T0/7
Images1/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
E
erg.schoolerg.school

ERG - portail des étudiant·e·s

No description available for this page.

Title Length30 chars

Recommended: 50-60 chars (~182px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (1/1) — critical for accessibility and SEO

12 issues found

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Local SEO

Local Search Readiness

0/100
Poor
15 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

F25/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
Citation
0/25

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:11%
Words:49
Token eff.:Too Short
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
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...
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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.
D
52/100
6
Passed
5
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
7/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
77/100
A+
31 mg
CO₂e / view
303.2 KB
Page Weight
90%
Cleaner Than
New Visitor
35 mg
vs
Returning (cached)
18 mg
Annual (10K/mo)
3.7 kg
Emission Segments
Data Center
2 mg
Network
9 mg
Device
20 mg
Resource Breakdown
JavaScript
117.0 KB
Images
462 B
CSS
184.6 KB
HTML
1.2 KB
Green Hosting Verified
OVHcloud
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

46d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (1)

erg.school

SHA-256 Fingerprint

23:11:A4:2D:F8:DB:1F:FA:E0:E1:D7:FE:07:FA:B4:91:A3:6A:02:B9...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Fri, 29 May 2026 19:56:05 GMT
etag
W/"65c36a62-7e9"
last-modified
Wed, 07 Feb 2024 11:32:50 GMT
server
nginx/1.14.2
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.erg.school

Domain Information

erg.school

Domain Age
5y 10m

Created

14.07.2020

Expires

14.07.2026

Last Updated

18.07.2025

Registrar

Gandi SAS

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.
D
44/100
Not Mobile Friendly
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, user-scalable=no
4 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Lato

WCAG Partial
60/100
Readability
/30
19/30

20px · LH 2.00

Hierarchy
/20
9/20
WCAG
/25
19/25

3.22:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

Lato

Body Font

Lato

Sans20px

Contrast Ratio

3.22:1

1 issue

Reading Comfort

Single Family

left aligned

✅ Excellent readability: 20px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.2:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 39

Color Palette

9 unique colors
3.24:1 AA Large Light
#ffffff
Background· 82.30000000000001%
#928d96
Other· 2.9%
#119cad
Primary· 3.9%
#d3e5e5
Secondary· 1.8%
#f3f0f1
Secondary· 1.8%
#2ca5b2
Accent· 1.5%
#84babf
Secondary· 1.3%

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Scripts & Styles

5 Resources

4
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

assets(4)

Website Identity

erg.school

5 years old
Location detected: 🇫🇷 Francevia ip
Gandi SAS

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Last analyzed: 29 May 2026 at 19:56

Historical Analysis & Change Tracking