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ull.es

https://ull.es· First analyzed 22 Apr 2026· Updated 22 Apr 2026
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ull.es
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Hosting Provider

Universidad de La Laguna

IP Address

193.145.100.5

Site Location

🇪🇸 Spainvia tld

Server Location

🇪🇸 San Cristóbal de La Laguna, Spain

ASN

AS766

Organization

Universidad de La Laguna

Server

Nginx

Nameservers

sun.rediris.es.dns2.ull.es.dns1.ull.es.chico.rediris.es.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
816 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.4 MB
89 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
Universidad de La Laguna

Technology Stack

18 Technologies Detected

Plugins

7
Stackable Ultimate Gutenberg Blocks
Timeline Block
Contact Form 7
DepicterTranslatepress MultilingualTranslatepress DeveloperUltimate Post

Libraries

2
jQueryv3.7.1
Underscore.js

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Other

1
Lottie

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Nginxv1.20.1

Languages

1
PHPv8.2.20

SEO Analysis

D52/100
16
10
3
Meta Tags0/15
Content10/12
Headings5/8
Technical18/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
U
ull.esull.es

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing page title — critical for SEO rankings and SERP display
  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (44/44) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 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

F34/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
6/25

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:4%
Words:1,675
Token eff.:Optimal
Sections/1K:0.6
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary27w
Descriptive Headingsavg 2.6w
Canonical URL
Open Graph0/3
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.
C
60/100
9
Passed
5
Critical
2
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
2/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
32/100
F
562 mg
CO₂e / view
4.4 MB
Page Weight
15%
Cleaner Than
New Visitor
643 mg
vs
Returning (cached)
321 mg
Annual (10K/mo)
67.5 kg
Emission Segments
Data Center
126 mg
Network
135 mg
Device
302 mg
Resource Breakdown
JavaScript
161.9 KB
Images
1.6 MB
CSS
2.7 MB
Fonts
5.3 KB
HTML
47.0 KB
Other
327 B
Green Hosting Not Verified
Universidad de La Laguna
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

80d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

13.04.2026

Valid Until

12.07.2026

Subject Alternative Names (6)

php8.ull.esstatic.ull.estarjeta.ull.esull.esusuarios.ull.eswww.ull.es

SHA-256 Fingerprint

5A:FE:0E:D6:02:85:83:91:52:30:AF:15:DD:F0:EF:0A:7C:CD:5D:4B...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
cache-control
🔵 Public(public)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-length
47777
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxb-006a4e02.gslb.pphosted.com
mxa-006a4e02.gslb.pphosted.com

Domain Information

ull.es

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
86/100
Mobile Friendly73 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

Open Sans

WCAG Partial
64/100
Readability
/30
18/30

20px · LH 1.20

Hierarchy
/20
15/20

2.25x ratio

WCAG
/25
15/25

1:1 min contrast

Performance
/25
16/25

2 fonts · 9 req

Heading Font

Open Sans

Sans45px

Body Font

Open Sans

Sans20px

Contrast Ratio

1:1

6 issues

Reading Comfort

~44 CPL

Narrow lines
45px
h1
30px
h2
20px
h4
20px
p

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

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

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

⚠️ Partial contrast: 6 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.

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 0

Color Palette

10 unique colors
Light
#cccccc
Other· 30.4%
#1a1d22
Primary· 15.5%
#846d57
Secondary· 9.9%
#292638
Secondary· 8.9%
#4a066f
Accent· 8.3%
#303d4b
Secondary· 5.6%
#5e4950
Secondary· 5%

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

25 Resources

15
Scripts
10
Styles
1
Async
1
Defer

Top Script Sources

ull.es(12)ajax.googleapis.com(1)cdn.jsdelivr.net(1)googletagmanager.com(1)

Website Identity

ull.es

Location detected: 🇪🇸 Spainvia tld

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Last analyzed: 22 Apr 2026 at 21:05

Historical Analysis & Change Tracking