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ser.es

https://ser.es· First analyzed 19 May 2026· Updated 19 May 2026
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ser.es
Desktop screenshot of ser.es
Mobile screenshot of ser.es
Mobile

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Hosting Provider

arsys.es

IP Address

82.223.29.202

Site Location

🇪🇸 Spainvia tld

Server Location

🇪🇸 Madrid, Spain

ASN

AS8560

Server

Nginx

Nameservers

dns1.servidoresdns.net.dns2.servidoresdns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
579 ms10%
Speed Index
753 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.1 MB
60 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.1.6
cms
SER Themev1.0.0Custom
by Nitsnets (Andrés Sánchez)

Technology Stack

14 Technologies Detected

Plugins

5
Contact Form 7
Cookie Law InfoWpfront Scroll TopJs_Composer
Yoast SEO

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv1.12.4

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

Languages

1
PHPv5.6.40

Security

1
reCAPTCHA

SEO Analysis

C68/100
19
7
2
Meta Tags10/15
Content10/12
Headings3/8
Technical20/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
S
ser.esser.es

SER - Sociedad Española de Reumatología

La Sociedad Española de Reumatología (SER) es una asociación científica, sin ánimo de lucro, que tiene por objeto: fomentar el conocimiento de las patologías...

Description truncated.
Title Length39 chars

Recommended: 50-60 chars (~238px / 580px)

Description Length441 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (17/28) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

11 URLs

11 sub-sitemaps

robots.txt

14 rules

Local SEO

Local Search Readiness

22/100
Needs Work
6 10 1

Sponsored

AI & LLM Readiness

D55/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
3/25
Citation
19/25

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:6%
Words:1,200
Token eff.:Optimal
Sections/1K:15
Depth:1/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary34w
Descriptive Headingsavg 6.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
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
63/100
10
Passed
3
Critical
2
Warnings
Images & Alt Text
15/20
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
9/15
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.
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.
48/100
D
217 mg
CO₂e / view
2.1 MB
Page Weight
50%
Cleaner Than
New Visitor
248 mg
vs
Returning (cached)
124 mg
Annual (10K/mo)
26.1 kg
Emission Segments
Data Center
11 mg
Network
64 mg
Device
143 mg
Resource Breakdown
JavaScript
296.4 KB
Images
1.4 MB
CSS
404.6 KB
HTML
19.9 KB
Green Hosting Verified
IONOS SE
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

73d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

30.06.2025

Valid Until

31.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.ser.esser.es

SHA-256 Fingerprint

4C:A0:0D:90:A1:D7:8B:3E:47:31:A3:F8:A9:D3:1A:0E:CD:4E:08:FD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-methods
GET,POST,OPTIONS,DELETE,PUT
access-control-allow-origin
*
cache-control
🟡 3s(max-age=3, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
20069
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx.serviciodecorreo.es

Domain Information

ser.es

DNSSEC
Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner
CookieYes
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieYes
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.
C
60/100
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
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial
63/100
Readability
/30
18/30

13px · LH 1.43

Hierarchy
/20
11/20

2.77x ratio

WCAG
/25
17/25

2.17:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

Roboto

Sans36px

Body Font

Roboto

Sans13px

Contrast Ratio

2.17:1

5 issues

Reading Comfort

~45 CPL

Optimal (45–75)
36px
h1
47px
h2
22px
h3
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

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

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.2:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

Flesch 0

Color Palette

10 unique colors
2.55:1 Fail Light
#ffffff
Background· 33.4%
#a6a19f
Other· 6.7%
#1cc0e6
Primary· 11%
#276889
Primary· 8%
#dae1e8
Secondary· 7.9%
#d0d1c7
Text· 6.1%
#0c5284
Accent· 5%
#4b91aa
Secondary· 3.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

19 Resources

11
Scripts
8
Styles
2
Async
0
Defer

Top Script Sources

local(7)gstatic.com(1)code.jquery.com(1)google.com(1)googletagmanager.com(1)

Website Identity

SER

915767799
www.ser.es/

C/ Marqués del Duero, 5, 1º Madrid 28001

Location detected: 🇪🇸 Spainvia tld
es-ES

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Last analyzed: 19 May 2026 at 17:54

Historical Analysis & Change Tracking