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stem.edu.gr

https://stem.edu.gr· First analyzed 05 May 2026· Updated 05 May 2026
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stem.edu.gr
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Hosting Provider

Hetzner
hetzner.com

IP Address

178.63.18.235

Site Location

🇬🇷 Greecevia tld

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

dns1.papaki.gr.dns2.papaki.gr.

Performance

81

Core Web Vitals

Weight

First Contentful Paint
2.1 s10%
Speed Index
2.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
92 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Zoo Eduhubv2.0.1Custom
by Zootemplate
View Theme

Technology Stack

29 Technologies Detected

Plugins

17
WooCommerce
Woothemes SenseiBeautiful Taxonomy Filters
WPML
Pressidium Cookie Consent
TablePress
Js_ComposerClever Mega MenuRevsliderWidget CountdownClever Vc Addon
Woocommerce Multilingual
Pixelyoursite
Contact Form 7
Elementor
WP Rocket
WPML

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

2
Tailwind CSS
Bootstrap

Libraries

1
jQueryv3.7.1

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

D57/100
17
9
2
Meta Tags4/15
Content10/12
Headings5/8
Technical19/25
E-E-A-T0/7
Images3/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
S
stem.edu.grstem.edu.gr

STEM Education

No description available for this page.

Title Length14 chars

Recommended: 50-60 chars (~87px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (38/61) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

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.

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AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
9/25

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:3%
Words:799
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary16w
Descriptive Headingsavg 2.8w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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.
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
17/20
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
5/15
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.
64/100
C
190 mg
CO₂e / view
1.8 MB
Page Weight
50%
Cleaner Than
New Visitor
217 mg
vs
Returning (cached)
109 mg
Annual (10K/mo)
22.8 kg
Emission Segments
Data Center
9 mg
Network
56 mg
Device
125 mg
Resource Breakdown
Images
973.6 KB
CSS
858.2 KB
Fonts
7.7 KB
HTML
41.7 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

53d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.03.2026

Valid Until

28.06.2026

Subject Alternative Names (3)

stem.edu.grstem.tmsoft.grwww.stem.edu.gr

SHA-256 Fingerprint

D2:2A:D5:7D:71:3E:E4:92:74:AA:1F:EC:91:68:2E:53:56:4A:44:F2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
42450
content-type
text/html; charset=UTF-8
date
Tue, 05 May 2026 10:45:15 GMT
last-modified
Tue, 05 May 2026 08:30:54 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.stem.edu.gr

Domain Information

stem.edu.gr

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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
77/100
Mobile Friendly6 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

Larsseit

WCAG Partial
69/100
Readability
/30
20/30

16px · LH 1.80

Hierarchy
/20
15/20

2.25x ratio

WCAG
/25
18/25

1:1 min contrast

Performance
/25
16/25

1 font · 12 req

Heading Font

Larsseit

Sans36px

Body Font

Larsseit

Sans16px

Contrast Ratio

1:1

12 issues

Reading Comfort

~39 CPL

Narrow lines
36px
h1
26px
h3
21px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Easy to read: Flesch score 85/100 — accessible to general audiences.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 85

Color Palette

12 unique colors
2.75:1 Fail Light
#ffffff
Background· 56.5%
#939f95
Other· 2.2%
#be763f
Primary· 8.2%
#11afe9
Accent· 7.7%
#279cfd
Accent· 6.5%
#80b710
Accent· 6%
#ebf2ef
Secondary· 3%
#4cb9c8
Accent· 2.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

10 Resources

0
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

stem.edu.gr

Location detected: 🇬🇷 Greecevia tld
el

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Last analyzed: 05 May 2026 at 10:45

Historical Analysis & Change Tracking