StackOptic
Back to Search
kerkour.com favicon

kerkour.com

https://kerkour.com· First analyzed 20 May 2026· Updated 20 May 2026
Export
kerkour.com
Desktop screenshot of kerkour.com
Mobile screenshot of kerkour.com
Mobile

Sponsored

Hosting Provider

Scaleway
scaleway.com

IP Address

51.159.145.222

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS12876

Organization

ONLINE

Server

Markdown Ninja

CDN

Bunny

Nameservers

kiki.bunny.net.coco.bunny.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
493 ms10%
Speed Index
641 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
168 KB
6 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Scaleway
CDN
Bunny

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

A80/100
24
5
0
Meta Tags5/15
Content11/12
Headings8/8
Technical21/25
E-E-A-T5/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
K
kerkour.comkerkour.com

Sylvain Kerkour

(Ab)using technology for fun & profit.

Title Length15 chars

Recommended: 50-60 chars (~88px / 580px)

Description Length38 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    465 URLs

    robots.txt

    10 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    0/100
    Poor
    15 2

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

    Sponsored

    AI & LLM Readiness

    D54/100
    Bot Access
    20/25
    Machine Read.
    14/25
    Schema Data
    6/25
    Citation
    14/25

    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
    navheader/footer
    Text ratio:15%
    Words:1,168
    Token eff.:Optimal
    Sections/1K:7.7
    Depth:2/5

    Structured Data

    1 JSON-LD
    Article×1.2Organization×1.1

    Citation Readiness

    Opening Summary16w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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
    72/100
    9
    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
    1/15
    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.
    76/100
    A+
    17 mg
    CO₂e / view
    167.8 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    19 mg
    vs
    Returning (cached)
    10 mg
    Annual (10K/mo)
    2.0 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    5 mg
    Device
    11 mg
    Resource Breakdown
    JavaScript
    84.0 KB
    Images
    66.3 KB
    CSS
    8.7 KB
    HTML
    8.8 KB
    Green Hosting Verified
    Scaleway
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    No WAF

    54d

    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+H3

    Valid From

    14.04.2026

    Valid Until

    13.07.2026

    Subject Alternative Names (1)

    kerkour.com

    SHA-256 Fingerprint

    C1:D1:56:6D:89:5A:49:09:E6:D7:36:95:3A:49:54:26:30:E6:7F:1B...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(public, no-cache, must-revalidate)
    content-encoding
    zstd
    content-type
    text/html; charset=utf-8
    date
    Wed, 20 May 2026 00:14:07 GMT
    etag
    "kSn7UZ263zio_mBU-hmP646m4k9FL6_ZI9X3bcwAq7g"
    Good Warning Issue

    Email Infrastructure

    Proton Mail

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    mail.protonmail.ch
    mailsec.protonmail.ch

    Domain Information

    kerkour.com

    Domain Age
    9y 1m

    Created

    16.04.2017

    Expires

    16.04.2030

    Last Updated

    16.05.2026

    Registrar

    Amazon Registrar, Inc.

    DNSSEC
    Not Enabled

    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
    66/100
    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, height=device-height, initial-scale=1.0, maximum-scale=1.0
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Apple Color Emoji

    WCAG Partial
    66/100
    Readability
    /30
    22/30

    16px · LH 1.75

    Hierarchy
    /20
    11/20

    1.25x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    4:1 min contrast

    Performance
    /25
    16/25

    1 font

    Heading Font

    Apple Color Emoji

    Sans20px

    Body Font

    Apple Color Emoji

    Sans16px

    Contrast Ratio

    4:1

    25 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    20px
    h1
    24px
    h2
    16px
    p
    Minor Third
    Scale

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 4.0:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

    Buy on MyFontsFlesch 40

    Color Palette

    7 unique colors
    2.46:1 Fail Light
    #ffffff
    Background· 82.50000000000001%
    #a5a5a5
    Other· 2.7%
    #fe0000
    Primary· 6.499999999999999%
    #d7d0cd
    Secondary· 2.5%
    #ceb0ae
    Secondary· 1.9%
    #ae6f6c
    Secondary· 1.3%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    2 Resources

    1
    Scripts
    1
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(1)

    Website Identity

    kerkour.com

    9 years old
    Location detected: 🇫🇷 Francevia ip
    Amazon Registrar, Inc.📧 Proton Mail

    Social Profiles

    GitHubMastodonBluesky

    Sponsored

    Last analyzed: 20 May 2026 at 00:14

    Historical Analysis & Change Tracking