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sensiolabs.com

https://sensiolabs.com· First analyzed 21 May 2026· Updated 21 May 2026
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sensiolabs.com
Desktop screenshot of sensiolabs.com
Mobile screenshot of sensiolabs.com
Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

35.246.184.45

Site Location

🇫🇷 Francevia phone

Server Location

🇩🇪 Frankfurt, Germany

ASN

AS396982

Organization

Google Cloud (europe-west3)

CDN

CDN

Nameservers

ns-26-b.gandi.net.ns-118-a.gandi.net.ns-225-c.gandi.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
633 ms10%
Speed Index
823 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
331 KB
103 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Medium
Infrastructure
Hosting
Google Cloud Platform
CDN
CDN

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Matomo

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

A84/100
26
3
0
Meta Tags12/15
Content12/12
Headings7/8
Technical22/25
E-E-A-T2/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sensiolabs.comsensiolabs.com

SensioLabs - Creator of Symfony

As the creator of the Open-Source framework Symfony, SensioLabs advises, trains, and shares expertise on development, e-commerce, and business apps.

Title Length31 chars

Recommended: 50-60 chars (~192px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (0)

    3 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    223 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    24/100
    Needs Work
    7 10

    Sponsored

    AI & LLM Readiness

    C61/100
    Bot Access
    20/25
    Machine Read.
    19/25
    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    def. listsnav
    Text ratio:5%
    Words:1,192
    Token eff.:Optimal
    Depth:2/5

    Structured Data

    2 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary70w
    Descriptive Headingsavg 3.5w
    Canonical URL
    Open Graph3/3
    Twitter Card2/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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.
    B
    75/100
    11
    Passed
    2
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    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
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    86/100
    A+
    33 mg
    CO₂e / view
    330.6 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    38 mg
    vs
    Returning (cached)
    19 mg
    Annual (10K/mo)
    4.0 kg
    Emission Segments
    Data Center
    2 mg
    Network
    10 mg
    Device
    22 mg
    Resource Breakdown
    JavaScript
    144.7 KB
    Images
    137.2 KB
    CSS
    19.9 KB
    HTML
    28.8 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    1 recommendation
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    100%Excellent
    Static / Informational

    HTTPS

    No WAF

    50d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    12.04.2026

    Valid Until

    11.07.2026

    Subject Alternative Names (5)

    blog.sensiolabs.comexpert.sensiolabs.comsensiolabs.comtraining.sensiolabs.comwww.sensiolabs.com

    SHA-256 Fingerprint

    8F:19:4B:AE:CE:82:7B:F8:CC:B5:CC:7E:71:49:7E:FA:DD:AF:98:9B...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    2296
    cache-control
    🟡 1 Hours(max-age=3600, must-revalidate, public)
    content-encoding
    📦 Gzip(gzip)
    content-length
    29187
    content-security-policy
    default-src 'self'; script-src 'sha512-FTjB9LwfOY33l9sq18OWJ...
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (5)

    ASPMX.L.GOOGLE.com
    ALT2.ASPMX.L.GOOGLE.com
    ALT3.ASPMX.L.GOOGLE.com
    ALT4.ASPMX.L.GOOGLE.com

    +1 more

    Domain Information

    sensiolabs.com

    Domain Age
    19y 5m

    Created

    15.12.2006

    Expires

    15.12.2026

    Last Updated

    14.11.2025

    Registrar

    Gandi SAS

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Notice (WP)

    Cookie Consent Banner
    Cookie Notice (WP)
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookie Notice (WP)
    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.
    B
    73/100
    Mobile Friendly
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica Neue

    WCAG AA
    70/100
    Readability
    /30
    11/30

    12px · LH 1.67

    Hierarchy
    /20
    16/20

    6x ratio

    WCAG
    /25
    21/25

    4.63:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans72px

    Body Font

    Helvetica Neue

    Sans12px

    Contrast Ratio

    4.63:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~35 CPL

    Narrow lines
    72px
    h1
    60px
    h2
    22px
    h4
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 6.0x larger than body text.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Flesch 30

    Color Palette

    9 unique colors
    18.08:1 AAA Light
    #ffffff
    Background· 63.800000000000004%
    #161617
    Text· 7.800000000000001%
    #e8f1f0
    Primary· 10.2%
    #97497c
    Secondary· 3.7%
    #66719f
    Secondary· 2.9%
    #bdcfbd
    Secondary· 1.9%

    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

    1 Resources

    0
    Scripts
    1
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    Website Identity

    SensioLabs

    SensioLabs

    Organization
    info@sensiolabs.com
    +33(0)1 86 65 72 00
    sensiolabs.com/
    19 years old
    Location detected: 🇫🇷 Francevia phone
    Gandi SAS📧 Google Workspaceen-US

    Sponsored

    Last analyzed: 21 May 2026 at 14:28

    Historical Analysis & Change Tracking