tdx.cat

https://tdx.cat· First analyzed 29 Apr 2026· Updated 29 Apr 2026

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tdx.cat

Mobile

Sponsored

Hosting Provider

CSUC Services

IP Address

84.88.27.106

Site Location

🇪🇸 Spainvia ip

Server Location

🇪🇸 Barcelona, Spain

ASN

AS13041

Organization

CSUC Services

Nameservers

ns1.cesca.es.ns2.cesca.es.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.6 s10%

Speed Index

3.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.8 MB

63 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CSUC Services

Technology Stack

5 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

SEO Analysis

B78/100

Meta Tags11/15

Content11/12

Headings8/8

Technical21/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

tdx.cattdx.cat

TDX (Tesis Doctorals en Xarxa)

Institutional repository that preserves and disseminates the academic and scientific output of the institution.

Title Length30 chars

Recommended: 50-60 chars (~181px / 580px)

Description Length111 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (43/49) — critical for accessibility and SEO

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

61 rules

Sitemap reference found

Local SEO

Local Search Readiness

15/100

Poor

4 12 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D49/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

2/25

Citation

15/25

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:13%

Words:881

Token eff.:Optimal

Sections/1K:22.7

Depth:1/5

Structured Data

1 JSON-LD

WebSite

Citation Readiness

Opening Summary36w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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Sponsored

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.

59/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

18/20

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

9/15

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.

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.

17/100

361 mg

CO₂e / view

2.8 MB

Page Weight

30%

Cleaner Than

New Visitor

412 mg

Returning (cached)

206 mg

Annual (10K/mo)

43.3 kg

Emission Segments

Data Center

81 mg

Network

87 mg

Device

194 mg

Resource Breakdown

JavaScript

377.5 KB

Images

2.3 MB

CSS

215.9 KB

HTML

11.2 KB

Green Hosting Not Verified

CSUC Services

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

76d

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

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

14.07.2025

Valid Until

14.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

tdx.catwww.tdx.cat

SHA-256 Fingerprint

0A:F1:EA:2E:D7:AC:E6:20:E0:54:E1:25:82:24:97:C5:F9:48:03:CA...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

content-encoding

📦 Gzip(gzip)

content-language

en-GB

content-length

11219

content-type

text/html;charset=utf-8

date

Wed, 29 Apr 2026 02:27:12 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

peguera.xs.csuc.cat

gabarro.xs.csuc.cat

Domain Information

tdx.cat

Domain Age

20y 1m

Created

06.03.2006

Expires

06.03.2027

Last Updated

20.04.2026

Registrar

Nominalia

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

68/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Titillium Web

WCAG Partial

79/100

Readability

/30

22/30

14px · LH 1.43

Hierarchy

/20

20/20

2.86x ratio · ✓ H1→H6

WCAG

/25

17/25

2.13:1 min contrast

Performance

/25

20/25

1 font · 3 req

Heading Font

Titillium Web

Sans40px

Body Font

Titillium Web

Sans14px

Contrast Ratio

2.13:1

6 issues

Reading Comfort

~34 CPL

Narrow lines

40px

30px

24px

16px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 2.1:1).

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

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFonts

Color Palette

4 unique colors

2.91:1 Fail Dark

#2a2b2d

Other· 32.3%

#677379

Secondary· 1.3%

#040f15

Primary· 49.4%

#fffffe

Background· 16.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)googletagmanager.com(1)

Website Identity

TDX (Tesis Doctorals en Xarxa)

tdx.cat/

20 years old

Location detected: 🇪🇸 Spainvia ip

Nominaliaen

Sponsored

Last analyzed: 29 Apr 2026 at 02:27

Historical Analysis & Change Tracking