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centrocentro.org

https://centrocentro.org· First analyzed 15 May 2026· Updated 15 May 2026
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centrocentro.org
Desktop screenshot of centrocentro.org
Mobile screenshot of centrocentro.org
Mobile

Sponsored

Hosting Provider

Asac Comunicaciones S.L

IP Address

181.224.166.5

Site Location

🇪🇸 Madrid, Spainvia geo_meta

Server Location

🇪🇸 Avilés, Spain

ASN

AS200165

Organization

Asac Comunicaciones S.L

Server

Nginx

CDN

CDN

Nameservers

dns34.servidoresdns.net.dns33.servidoresdns.net.

Performance

75

Core Web Vitals

Weight

First Contentful Paint
3.4 s10%
Speed Index
4.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.6 MB
178 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

12 Technologies Detected

Libraries

3
jQuery
jQuery UI
Animate.css

CSS Frameworks

2
Tailwind CSS
Normalize.css

Analytics

2
Google Analytics
Google Analytics 4

UI Components

1
Slick Carousel

Other

1
Modernizr

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C62/100
19
5
2
Meta Tags7/15
Content9/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
C
centrocentro.orgcentrocentro.org

CentroCentro

CentroCentro es un espacio de encuentro intercultural, una gran plaza pública para el ciudadano y un escenario de participación, acción, ocio y aprendizaje. ...

Description truncated.
Title Length12 chars

Recommended: 50-60 chars (~74px / 580px)

Description Length488 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (28/44) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

277 rules

Local SEO

Local Search Readiness

17/100
Poor
5 13 2

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

Sponsored

AI & LLM Readiness

F39/100
Bot Access
15/25
Machine Read.
10/25
Schema Data
0/25
Citation
14/25

AI Bot Access

9/14 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:3%
Words:408
Token eff.:Optimal
Sections/1K:12.3
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary40w
Descriptive Headingsavg 2.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
C
66/100
12
Passed
5
Critical
1
Warnings
Images & Alt Text
5/20
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
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
30/100
F
706 mg
CO₂e / view
5.6 MB
Page Weight
5%
Cleaner Than
New Visitor
807 mg
vs
Returning (cached)
403 mg
Annual (10K/mo)
84.7 kg
Emission Segments
Data Center
158 mg
Network
169 mg
Device
379 mg
Resource Breakdown
JavaScript
912.4 KB
Images
576.4 KB
CSS
4.1 MB
HTML
16.7 KB
Green Hosting Not Verified
Asac Comunicaciones S.L
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

183d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

30.04.2026

Valid Until

14.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.centrocentro.orgcentrocentro.org

SHA-256 Fingerprint

CA:65:5C:17:0D:9B:CB:B9:ED:6D:DB:38:EE:E3:31:C8:16:0F:7A:16...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 1 Hours(max-age=3600, public)
content-encoding
📦 Gzip(gzip)
content-language
es
content-type
text/html; charset=UTF-8
date
Thu, 14 May 2026 09:04:11 GMT
etag
W/"1778843370"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx02.hornetsecurity.com
mx03.hornetsecurity.com
mx01.hornetsecurity.com
mx04.hornetsecurity.com

Domain Information

centrocentro.org

Domain Age
15y 1m

Created

21.03.2011

Expires

21.03.2027

Last Updated

05.05.2026

Registrar

Arsys Internet, S.L. dba NICLINE.COM

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
54/100
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

tex_gyre_herosregular

WCAG AAA
52/100
Readability
/30
13/30

11px · LH 1.40

Hierarchy
/20
6/20
WCAG
/25
24/25

19.86:1 min contrast

Performance
/25
9/25

1 font · 7 req

Heading Font

tex_gyre_herosregular

Sans

Body Font

tex_gyre_herosregular

Sans11px

Contrast Ratio

19.86:1

WCAG AAA (≥7:1)

Reading Comfort

~83 CPL

Wide lines
20px
h2
14px
h4
11px
p

❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Wide lines: ~83 chars/line. Use max-width: 65ch for comfortable reading.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 19.9:1).

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

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

Buy on MyFonts

Color Palette

8 unique colors
3.21:1 AA Large Light
#ffffff
Background· 26%
#8a9287
Other· 7.1%
#e12a1a
Primary· 40%
#baa89c
Secondary· 6.4%
#cfd2c7
Secondary· 6.1%
#feffbb
Accent· 6%
#51100d
Accent· 5.5%
#ae453c
Secondary· 3.1%

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

Sponsored

Scripts & Styles

30 Resources

20
Scripts
10
Styles
2
Async
1
Defer

Top Script Sources

local(18)googletagmanager.com(2)

Website Identity

centrocentro.org

15 years old
Location detected: 🇪🇸 Spain, Madridvia geo_meta
Arsys Internet, S.L. dba NICLINE.COMes

Sponsored

Last analyzed: 15 May 2026 at 12:04

Historical Analysis & Change Tracking