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fer.es

https://fer.es· First analyzed 11 May 2026· Updated 11 May 2026
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fer.es
Desktop screenshot of fer.es
Mobile screenshot of fer.es
Mobile

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Hosting Provider

arsys.es

IP Address

217.76.130.173

Site Location

🇪🇸 Spainvia tld

Server Location

🇪🇸 Madrid, Spain

ASN

AS8560

Nameservers

ns1.fer.es.ns2.fer.es.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
677 ms10%
Speed Index
880 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
7.8 MB
81 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
arsys.es

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Foundation

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

UI Components

1
Slick Carousel

Tag Managers

1
Google Tag Manager

SEO Analysis

D58/100
14
8
1
Meta Tags10/15
Content11/12
Headings3/8
Technical10/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
F
fer.esfer.es

Portada, FER Federación de empresas de La Rioja

Portada, FER Federación de empresas de La Rioja

Title Length47 chars

Recommended: 50-60 chars (~287px / 580px)

Description Length47 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

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Local SEO

Local Search Readiness

11/100
Poor
4 11 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

D44/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
11/25

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:7%
Words:867
Token eff.:Optimal
Sections/1K:24.2
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary23w
Descriptive Headingsavg 1.7w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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
87/100
15
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
20/20
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
30/100
F
811 mg
CO₂e / view
7.8 MB
Page Weight
5%
Cleaner Than
New Visitor
927 mg
vs
Returning (cached)
464 mg
Annual (10K/mo)
97.4 kg
Emission Segments
Data Center
40 mg
Network
238 mg
Device
533 mg
Resource Breakdown
JavaScript
514.7 KB
Images
7.0 MB
CSS
338.2 KB
HTML
62.3 KB
Green Hosting Verified
IONOS SE
GWF Verified
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

28d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.05.2025

Valid Until

08.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.fer.esfer.es

SHA-256 Fingerprint

3D:29:D3:E2:86:EB:B2:53:05:C1:C6:2E:04:37:3D:0D:33:1C:A6:31...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
393
content-type
text/html
date
Mon, 11 May 2026 00:37:33 GMT
etag
"85f512742c8c61:0"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.serviciodecorreo.es

Domain Information

fer.es

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected

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
59/100
Mobile Friendly1 breakpoint
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

sans-serif

WCAG Partial
70/100
Readability
/30
20/30

16px · LH 1.40

Hierarchy
/20
16/20

1.75x ratio · ✓ H1→H6

WCAG
/25
16/25

3.2:1 min contrast

Performance
/25
18/25

0 fonts · 4 req

Heading Font

sans-serif

Sans28px

Body Font

sans-serif

Sans16px

Contrast Ratio

3.2:1

6 issues

Reading Comfort

~42 CPL

Narrow lines
28px
h1
25px
h2
28px
h3
16px
p
Minor Second
Scale

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 6/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 3.2:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Lean font stack: 0 font families keeps load times fast.

Flesch 6

Color Palette

8 unique colors
2.41:1 Fail Light
#ffffff
Background· 50.5%
#aba6a4
Other· 5.9%
#171211
Primary· 11.5%
#6a4c37
Secondary· 9.5%
#697f93
Secondary· 6.8%
#3e4a67
Secondary· 2.9%

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

26 Resources

16
Scripts
10
Styles
4
Async
1
Defer

Top Script Sources

local(9)googletagmanager.com(2)insuit.net(2)tracker.metricool.com(1)cdn.insuit.net(1)

Website Identity

fer.es

fer@fer.es
Location detected: 🇪🇸 Spainvia tld
es

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Last analyzed: 11 May 2026 at 00:38

Historical Analysis & Change Tracking