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jabref.org

https://jabref.org· First analyzed 16 May 2026· Updated 16 May 2026
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jabref.org
Desktop screenshot of jabref.org
Mobile screenshot of jabref.org
Mobile

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Hosting Provider

Microsoft Azure
azure.microsoft.com

IP Address

150.171.109.198

Site Location

🇰🇪 Kenyavia ip

Server Location

🇰🇪 Nairobi, Kenya

ASN

AS8075

Organization

Microsoft Corporation

CDN

CDN

Nameservers

brit.ns.cloudflare.com.nash.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
566 ms10%
Speed Index
736 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
578 KB
36 requests
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Nuxt.js
Styling
Tailwind CSS
Infrastructure
Hosting
Microsoft Azure
CDN
CDN

Technology Stack

2 Technologies Detected

Meta Frameworks

1
Nuxt.js

CSS Frameworks

1
Tailwind CSS

SEO Analysis

B77/100
21
6
0
Meta Tags14/15
Content8/12
Headings6/8
Technical24/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
J
jabref.orgjabref.org

JabRef - Free Reference Manager - Stay on top of your Literature

A free reference manager that helps you to discover, collect, organize and cite your scholarly literature and research in an efficient way.

Title Length64 chars

Recommended: 50-60 chars (~397px / 580px)

Description Length139 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    5 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    11/100
    Poor
    3 14

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

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    5/25
    Citation
    13/25

    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:4%
    Words:343
    Token eff.:Optimal
    Sections/1K:26.2
    Depth:2/5

    Structured Data

    6 JSON-LD
    Organization×1.1Product

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 4.3w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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.
    A
    81/100
    13
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    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
    4/15
    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.
    74/100
    A
    58 mg
    CO₂e / view
    578.0 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    67 mg
    vs
    Returning (cached)
    33 mg
    Annual (10K/mo)
    7.0 kg
    Emission Segments
    Data Center
    3 mg
    Network
    17 mg
    Device
    38 mg
    Resource Breakdown
    JavaScript
    280.7 KB
    Images
    252.4 KB
    CSS
    31.5 KB
    HTML
    12.5 KB
    Other
    890 B
    Green Hosting Verified
    Microsoft Azure
    Provider Match
    1 recommendation
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    52d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    07.01.2026

    Valid Until

    07.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    jabref.org

    SHA-256 Fingerprint

    39:5F:7D:A0:CD:BB:BE:D3:71:DE:0A:C0:45:5E:FA:8B:51:41:10:F2...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    date
    Sat, 16 May 2026 14:32:58 GMT
    request-context
    appId=cid-v1:562ccb16-3bf1-4f49-81fd-96596a137278
    strict-transport-security
    max-age=31536000; includeSubDomains
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    volans.uberspace.de

    Domain Information

    jabref.org

    Domain Age
    14y 3m

    Created

    28.01.2012

    Expires

    28.01.2027

    Last Updated

    01.02.2026

    Registrar

    Mesh Digital Limited

    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.
    B
    72/100
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Apple Color Emoji

    WCAG Partial
    67/100
    Readability
    /30
    22/30

    16px · LH 1.50

    Hierarchy
    /20
    14/20

    3x ratio

    WCAG
    /25
    17/25

    3.4:1 min contrast

    Performance
    /25
    14/25

    1 font

    Heading Font

    Apple Color Emoji

    Sans48px

    Body Font

    Apple Color Emoji

    Sans16px

    Contrast Ratio

    3.4:1

    4 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    48px
    h1
    30px
    h2
    30px
    h3
    24px
    h4
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 3.4:1).

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

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

    Buy on MyFontsFlesch 47

    Color Palette

    5 unique colors
    3.12:1 AA Large Light
    #ffffff
    Background· 81.79999999999998%
    #909296
    Other· 2.4%

    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

    JabRef e.V.

    JabRef e.V.

    Organization

    JabRef is a free reference manager that helps you to discover, collect, organize and cite your scholarly literature and research in an efficient way.

    production
    14 years old
    Location detected: 🇰🇪 Kenyavia ip
    Mesh Digital Limiteden

    Social Profiles

    X (Twitter)GitHub

    Sponsored

    Last analyzed: 16 May 2026 at 14:33

    Historical Analysis & Change Tracking