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uso.es

https://uso.es· First analyzed 28 May 2026· Updated 28 May 2026
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uso.es
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Mobile

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Hosting Provider

Scaleway
scaleway.com

IP Address

163.172.119.200

Site Location

🇪🇸 Spainvia tld

Server Location

🇫🇷 Paris, France

ASN

AS12876

Organization

ONLINE

Server

TWS

Nameservers

ns100.ovh.net.dns100.ovh.net.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
9.7 MB
129 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv.
cms
richerv1.4Custom
by ArtstudioWorks
View Theme

Technology Stack

19 Technologies Detected

Plugins

8
Contact Form 7
Add Search To Menu
Wordpress Popular Posts
Wp Google Map PluginJs_ComposerAdd To AnyResponsive Menu Pro
Yoast SEO

Libraries

2
jQueryv3.5.1
Lodash

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Languages

1
PHPv7.3.33

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

A82/100
23
8
0
Meta Tags10/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
U
uso.esuso.es

Sindicato USO - Unión Sindical Obrera

Últimas Noticias Actualidad Acción Sindical Salud laboral Igualdad Internacional Formación Elecciones Sindicales Igualdad Prestación cuid...

Description truncated.
Title Length37 chars

Recommended: 50-60 chars (~221px / 580px)

Description Length816 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    16 URLs

    16 sub-sitemaps

    robots.txt

    3 rules

    Local SEO

    Local Search Readiness

    14/100
    Poor
    4 13

    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.
    7/25
    Schema Data
    7/25
    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
    Text ratio:6%
    Words:2,417
    Token eff.:Optimal

    Structured Data

    3 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary145w
    Descriptive Headings
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    68/100
    10
    Passed
    5
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    10/15
    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
    8/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    5/15
    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.
    31/100
    F
    999 mg
    CO₂e / view
    9.7 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.14 g
    vs
    Returning (cached)
    571 mg
    Annual (10K/mo)
    119.8 kg
    Emission Segments
    Data Center
    49 mg
    Network
    294 mg
    Device
    656 mg
    Resource Breakdown
    JavaScript
    485.6 KB
    Images
    9.0 MB
    CSS
    150.6 KB
    Fonts
    3.7 KB
    HTML
    26.3 KB
    Green Hosting Verified
    Scaleway
    GWF Verified
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    125d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    GoDaddy.com, Inc.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/1.1

    Valid From

    16.03.2026

    Valid Until

    30.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    uso.eswww.uso.es

    SHA-256 Fingerprint

    20:4D:33:E7:4B:AE:E3:5B:79:FF:1E:D3:41:20:12:FA:86:35:59:AF...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-length
    26607
    content-type
    text/html; charset=UTF-8
    date
    Thu, 28 May 2026 07:52:22 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (4)

    alt3.aspmx.l.google.com
    alt1.aspmx.l.google.com
    alt2.aspmx.l.google.com
    alt4.aspmx.l.google.com

    Domain Information

    uso.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
    Data Protection Officer mentioned
    Legitimate interest basis mentioned

    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 Friendly26 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, maximum-scale=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    trebuchet + Open Sans

    WCAG Partial
    64/100
    Readability
    /30
    17/30

    14px · LH 1.40

    Hierarchy
    /20
    17/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    3.84:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 1 req

    Heading Font

    trebuchet

    Sans42px

    Body Font

    Open Sans

    Sans14px

    Contrast Ratio

    3.84:1

    24 issues

    Reading Comfort

    Dual Sans-Serif

    left aligned
    42px
    h1
    16px
    h2
    16px
    h3
    15px
    h4
    14px
    p

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

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

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

    ⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 3.8:1).

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

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    GGoogle FontsBuy on MyFontsFlesch 0

    Color Palette

    7 unique colors
    10.33:1 AAA Dark
    #414040
    Text· 39.60000000000001%
    #ffffff
    Background· 30.099999999999998%
    #2a0d0c
    Primary· 10.3%
    #3e1a18
    Secondary· 9.7%
    #b1a09f
    Secondary· 4.4%
    #533432
    Secondary· 0.5%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    6
    Async
    1
    Defer

    Top Script Sources

    uso.es(11)static.addtoany.com(3)consent.cookiebot.com(2)googletagmanager.com(2)gstatic.com(1)

    Website Identity

    Unión Sindical Obrera

    Unión Sindical Obrera

    Organization

    Unión Sindical Obrera

    www.uso.es/
    Location detected: 🇪🇸 Spainvia tld
    📧 Google Workspacees

    Sponsored

    Last analyzed: 28 May 2026 at 07:52

    Historical Analysis & Change Tracking

    uso.es Technology Stack - Built With jQuery, Lodash, Tailwind CSS, Font Awesome, Google Fonts | StackOptic | StackOptic