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adoptopenjdk.net

https://adoptopenjdk.net· First analyzed 01 May 2026· Updated 01 May 2026
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adoptopenjdk.net
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Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.17.74.81

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

carter.ns.cloudflare.com.zoe.ns.cloudflare.com.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
59 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
Netlify
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Frameworks

1
Angular

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B76/100
23
6
0
Meta Tags8/15
Content10/12
Headings6/8
Technical20/25
E-E-A-T5/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
A
adoptopenjdk.netadoptopenjdk.net

Home | Adoptium

Eclipse Adoptium provides prebuilt OpenJDK binaries from a fully open source set of build scripts and infrastructure.

Title Length15 chars

Recommended: 50-60 chars (~94px / 580px)

Description Length117 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    147 URLs

    robots.txt

    4 rules

    Sitemap reference found

    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.
    12/25
    Schema Data
    2/25
    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
    blockquotesnavheader/footer
    Text ratio:5%
    Words:1,300
    Token eff.:Optimal
    Sections/1K:30.8
    Depth:3/5

    Structured Data

    1 JSON-LD
    Organization×1.1

    Citation Readiness

    Opening Summary20w
    Descriptive Headingsavg 4.9w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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.
    B
    78/100
    12
    Passed
    5
    Critical
    0
    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
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    11/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    65/100
    C
    181 mg
    CO₂e / view
    1.8 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    207 mg
    vs
    Returning (cached)
    104 mg
    Annual (10K/mo)
    21.7 kg
    Emission Segments
    Data Center
    9 mg
    Network
    53 mg
    Device
    119 mg
    Resource Breakdown
    JavaScript
    1.5 MB
    Images
    67.3 KB
    CSS
    113.6 KB
    HTML
    36.8 KB
    Other
    8.2 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Static / Informational

    HTTPS

    WAF

    47d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    19.03.2026

    Valid Until

    17.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    adoptium.net*.adoptium.net

    SHA-256 Fingerprint

    79:2A:AF:1B:0C:FB:2F:44:14:E8:9B:B2:41:F0:11:F7:8B:9F:72:13...

    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
    🟡 300s(public, max-age=300)
    cache-status
    "Netlify Durable"; fwd=bypass, "Netlify Edge"; fwd=miss
    cf-cache-status
    HIT
    cf-ray
    9f4c39552c63d0f8-SOF
    content-encoding
    📦 Gzip(gzip)
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (5)

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

    +1 more

    Domain Information

    adoptopenjdk.net

    Domain Age
    9y 1m

    Created

    17.03.2017

    Expires

    17.03.2030

    Last Updated

    15.02.2025

    Registrar

    123-Reg Limited

    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

    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
    75/100
    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

    Typography & Readability

    Hanken Grotesk

    WCAG Partial
    76/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    16/20

    6x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 2 req

    Heading Font

    Hanken Grotesk

    Sans96px

    Body Font

    Hanken Grotesk

    Sans16px

    Contrast Ratio

    1:1

    5 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    96px
    h1
    96px
    h2
    24px
    h3
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 15/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

    Buy on MyFontsFlesch 15

    Color Palette

    4 unique colors
    Light
    #14003d
    Primary· 63.400000000000006%
    #300240
    Accent· 28.699999999999996%
    #ccbecf
    Secondary· 4.1%
    #633c6a
    Secondary· 3.7%

    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

    28 Resources

    20
    Scripts
    8
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    local(19)googletagmanager.com(1)

    Website Identity

    Eclipse Adoptium

    Eclipse Adoptium

    Organization
    adoptium.net
    9 years old
    Location detected: 🇨🇦 Canadavia ip
    123-Reg Limited📧 Google Workspaceen

    Sponsored

    Last analyzed: 01 May 2026 at 05:00

    Historical Analysis & Change Tracking