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slsa.dev

https://slsa.dev· First analyzed 05 May 2026· Updated 05 May 2026
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slsa.dev
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

99.83.231.61

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Netlify

Nameservers

ns2.dnsimple-edge.net.ns3.dnsimple.com.ns4.dnsimple-edge.org.ns1.dnsimple.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
993 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
967 KB
32 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Jekyllv3.9.5
Infrastructure
Platform
Netlify

Technology Stack

4 Technologies Detected

Frameworks

1
Alpine.js

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Platforms

1
Netlify

SEO Analysis

B76/100
22
6
0
Meta Tags12/15
Content11/12
Headings8/8
Technical17/25
E-E-A-T5/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
slsa.devslsa.dev

SLSA • Supply-chain Levels for Software Artifacts

SLSA is a security framework. It is a check-list of standards and controls to prevent tampering, improve integrity, and secure packages and infrastructure in...

Description truncated.
Title Length49 chars

Recommended: 50-60 chars (~297px / 580px)

Description Length294 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    273 URLs

    robots.txt

    1 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    7/100
    Poor
    2 14 1

    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
    5/25
    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
    navheader/footer
    Text ratio:16%
    Words:795
    Token eff.:Optimal
    Sections/1K:2.5
    Depth:2/5

    Structured Data

    1 JSON-LD
    Organization×1.1WebSite

    Citation Readiness

    Opening Summary44w
    Descriptive Headingsavg 3.5w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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
    76/100
    13
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    10/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    7/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    69/100
    B
    98 mg
    CO₂e / view
    966.8 KB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    112 mg
    vs
    Returning (cached)
    56 mg
    Annual (10K/mo)
    11.7 kg
    Emission Segments
    Data Center
    5 mg
    Network
    29 mg
    Device
    64 mg
    Resource Breakdown
    JavaScript
    50.8 KB
    Images
    240.7 KB
    CSS
    574.2 KB
    HTML
    6.5 KB
    Other
    94.7 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    1 recommendation
    • •Carbon footprint recommendation preview...
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    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    66d

    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 (2)

    slsa.devwww.slsa.dev

    SHA-256 Fingerprint

    4F:24:DA:C7:0C:42:D1:E5:5A:1F:52:F1:A3:2F:9B:C9:89:81:8B:63...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    0
    cache-control
    🟡 0s(public,max-age=0,must-revalidate)
    cache-status
    "Netlify Edge"; fwd=miss
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    slsa.dev

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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
    61/100
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Prodigy + Inter

    WCAG AA
    75/100
    Readability
    /30
    19/30

    16px · LH 1.70

    Hierarchy
    /20
    16/20

    4.75x ratio · ✓ H1→H6

    WCAG
    /25
    22/25

    4.69:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 5 req

    Heading Font

    Prodigy

    Sans76px

    Body Font

    Inter

    Sans16px

    Contrast Ratio

    4.69:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~40 CPL

    Narrow lines
    76px
    h1
    40px
    h2
    40px
    h3
    40px
    h4
    16px
    p

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

    ⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

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

    ✅ Strong hierarchy: Headlines are 4.8x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    Buy on MyFontsFlesch 39

    Color Palette

    4 unique colors
    Light
    #155756
    Primary· 85.49999999999999%
    #58da94
    Primary· 10.899999999999999%
    #ffffff
    Primary· 0%
    #329171
    Primary· 2%
    #5dbf94
    Secondary· 1.5%

    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

    8 Resources

    2
    Scripts
    6
    Styles
    0
    Async
    1
    Defer

    Top Script Sources

    local(2)

    Website Identity

    SLSA

    SLSA is a security framework. It is a check-list of standards and controls to prevent tampering, improve integrity, and secure packages and infrastructure in your projects, businesses or enterprises. It’s how you get from safe enough to being as resilient as possible, at any link in the chain.

    /
    Location detected: 🇺🇸 United Statesvia ip
    en

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 05 May 2026 at 23:02

    Historical Analysis & Change Tracking

    slsa.dev Technology Stack - Built With Alpine.js, Swiper, Tailwind CSS, Netlify | StackOptic | StackOptic