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rediris.es

https://rediris.es· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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rediris.es
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Mobile

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Hosting Provider

Entidad Publica Empresarial Red.es

IP Address

130.206.13.20

Site Location

🇪🇸 Spainvia tld

Server Location

🇪🇸 Ciutadella, Spain

ASN

AS766

Organization

Entidad Publica Empresarial Red.es

Server

Apache

Nameservers

chico.rediris.es.scsnms.switch.ch.sun.rediris.es.ns02.fccn.pt.

Performance

76

Core Web Vitals

Weight

First Contentful Paint
2.8 s10%
Speed Index
3.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.9 MB
53 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Entidad Publica Empresarial Red.es

Technology Stack

6 Technologies Detected

Libraries

1
jQuery

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Apachev2.2.3

SEO Analysis

D52/100
14
9
2
Meta Tags4/15
Content11/12
Headings7/8
Technical13/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
R
rediris.esrediris.es

RedIRIS - RedIRIS - Spanish academic and research network - Connect...

No description available for this page.

Title truncated.
Title Length95 chars

Recommended: 50-60 chars (~570px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (95 chars, ~570px). Will be truncated in search results.
  • • Missing meta description — important for click-through rates in SERPs

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

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

D42/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
10/25

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:17%
Words:945
Token eff.:Optimal
Sections/1K:5.3
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary88w
Descriptive Headingsavg 3.2w
Canonical URL
Open Graph0/3
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.
D
58/100
9
Passed
5
Critical
2
Warnings
Images & Alt Text
10/20
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
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
5/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
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.
18/100
F
366 mg
CO₂e / view
2.9 MB
Page Weight
30%
Cleaner Than
New Visitor
418 mg
vs
Returning (cached)
209 mg
Annual (10K/mo)
43.9 kg
Emission Segments
Data Center
82 mg
Network
88 mg
Device
196 mg
Resource Breakdown
JavaScript
262.9 KB
Images
2.0 MB
CSS
569.2 KB
HTML
25.6 KB
Green Hosting Not Verified
Entidad Publica Empresarial Red.es
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

313d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.03.2026

Valid Until

05.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (14)

www.rediris.esrediris.esabuses.essir.rediris.esrediris.orgwww.eduid.esrediris.comwww.rediris.org+6 more

SHA-256 Fingerprint

BB:4A:45:DA:93:C1:AD:0F:C4:E6:FE:4E:D0:00:A3:35:87:A8:5E:62...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
cache-control
🔴 No Cache(no-cache)
connection
Keep-Alive
content-language
en
content-length
264
content-location
index.html.en
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx03.puc.rediris.es
mx04.puc.rediris.es

Domain Information

rediris.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

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
71/100
Mobile Friendly12 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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

verdana

WCAG Partial
65/100
Readability
/30
22/30

16px · LH 1.30

Hierarchy
/20
13/20

1.9x ratio

WCAG
/25
17/25

3.82:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

verdana

Sans30px

Body Font

verdana

Sans16px

Contrast Ratio

3.82:1

Below AA

Reading Comfort

~38 CPL

Narrow lines
30px
h1
21px
h2
21px
h3
16px
p

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 2/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 0 elements below WCAG AA threshold (min 3.8:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 2

Color Palette

9 unique colors
Light
#ffffff
Background· 56%
#008395
Primary· 11.5%
#59a0a7
Secondary· 6.1%
#73b2ba
Secondary· 5.6%
#c0d1d2
Secondary· 5.5%
#23919f
Primary· 5.1%
#f1da88
Accent· 3.4%
#166e7f
Accent· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

17 Resources

9
Scripts
8
Styles
0
Async
5
Defer

Top Script Sources

local(7)fslightbox.js(1)google.com(1)

Website Identity

rediris.es

Location detected: 🇪🇸 Spainvia tld
es

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Last analyzed: 25 Apr 2026 at 12:34

Historical Analysis & Change Tracking

rediris.es Technology Stack - Built With jQuery, Lightbox, Tailwind CSS, Font Awesome, Matomo | StackOptic | StackOptic