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cef.es

https://cef.es· First analyzed 09 May 2026· Updated 09 May 2026
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cef.es
Desktop screenshot of cef.es
Mobile screenshot of cef.es
Mobile

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Hosting Provider

GTN Services B.V.

IP Address

193.116.165.101

Site Location

🇪🇸 Spainvia tld

Server Location

🇪🇸 Madrid, Spain

ASN

AS48083

Server

Apache

Nameservers

selma.cef.es.dns.inittab.org.etc.inittab.org.patty.cef.es.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
610 ms10%
Speed Index
793 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
526 KB
55 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Advertising

2
Google AdsLinkedIn Ads

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.66

SEO Analysis

B76/100
23
5
1
Meta Tags13/15
Content10/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile3/4
Indexability3/3
C
cef.escef.es

CEF.- | Masters, Cursos, Oposiciones y Libros

El Centro de Estudios Financieros (CEF.-) es un Centro de Formación privado que imparte Masters, Cursos y Oposiciones para el desarrollo de profesionales alt...

Description truncated.
Title Length45 chars

Recommended: 50-60 chars (~269px / 580px)

Description Length190 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

1,884 URLs

robots.txt

54 rules

Sitemap reference found

Sponsored

AI & LLM Readiness

F36/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
1/25
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
Text ratio:10%
Words:3,947
Token eff.:Poor Structure

Structured Data

2 JSON-LD
BreadcrumbList

Citation Readiness

Opening Summary139w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
B
73/100
13
Passed
4
Critical
3
Warnings
Images & Alt Text
15/20
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
12/15
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.
5 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.
56/100
A
65 mg
CO₂e / view
526.4 KB
Page Weight
80%
Cleaner Than
New Visitor
74 mg
vs
Returning (cached)
37 mg
Annual (10K/mo)
7.8 kg
Emission Segments
Data Center
15 mg
Network
16 mg
Device
35 mg
Resource Breakdown
JavaScript
95.4 KB
Images
200.8 KB
CSS
215.4 KB
HTML
14.8 KB
Green Hosting Not Verified
GTN Services B.V.
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

201d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

27.11.2025

Valid Until

26.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cef.comcef.com

SHA-256 Fingerprint

8B:31:75:DF:D3:7A:C5:62:3C:CD:17:A3:E6:D6:9A:98:6B:8E:B7:F3...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(must-revalidate, no-cache, private)
connection
Keep-Alive
content-encoding
⚡ Brotli(br)
content-length
14887
content-type
text/html; charset=UTF-8
content-language
es
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

cef-es.mail.protection.outlook.com

Domain Information

cef.es

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Legitimate interest basis 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.
A
80/100
Mobile Friendly25 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

DM Sans

WCAG Partial
57/100
Readability
/30
24/30

16px · LH 1.60

Hierarchy
/20
8/20
WCAG
/25
10/25

1.11:1 min contrast

Performance
/25
15/25

1 font · 3 req

Heading Font

DM Sans

Sans

Body Font

DM Sans

Sans16px

Contrast Ratio

1.11:1

4 issues

Reading Comfort

~35 CPL

Narrow lines
39px
h2
31px
h3
16px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.1:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 0

Color Palette

8 unique colors
Light
#ffffff
Background· 46.8%
#002619
Background· 21%
#59664f
Secondary· 7.5%
#0c150e
Primary· 6.9%
#1d3222
Primary· 5.4%
#b6b89a
Secondary· 5.3%
#77a693
Secondary· 4.3%
#dae7c0
Secondary· 2.7%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

3

Categories

4

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

14 Resources

12
Scripts
2
Styles
5
Async
2
Defer

Top Script Sources

local(4)googletagmanager.com(3)consent.cookiebot.eu(2)use.fontawesome.com(2)snap.licdn.com(1)

Website Identity

cef.es

Location detected: 🇪🇸 Spainvia tld
📧 Microsoft 365

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Last analyzed: 09 May 2026 at 22:41

Historical Analysis & Change Tracking