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rgraph.net

https://rgraph.net· First analyzed 24 May 2026· Updated 24 May 2026
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rgraph.net
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Mobile screenshot of rgraph.net
Mobile

Sponsored

Hosting Provider

IONOS (1&1)
ionos.com

IP Address

217.160.0.49

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1051.ui-dns.org.ns1121.ui-dns.com.ns1023.ui-dns.de.ns1038.ui-dns.biz.

Performance

98

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
IONOS (1&1)

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

C68/100
18
7
0
Meta Tags15/15
Content10/12
Headings8/8
Technical14/25
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
R
rgraph.netrgraph.net

Easily make JavaScript charts for websites with RGraph

RGraph produces easy-to-use charts using JavaScript - over 60 different SVG and canvas types. Started in 2008, RGraph is Open Source.

Title Length54 chars

Recommended: 50-60 chars (~335px / 580px)

Description Length133 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    632 URLs

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    4/100
    Poor
    1 15 1

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

    Sponsored

    AI & LLM Readiness

    F39/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    0/25
    Citation
    9/25

    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
    Text ratio:3%
    Words:630
    Token eff.:Optimal

    Structured Data

    1 JSON-LD

    Citation Readiness

    Opening Summary39w
    Descriptive Headingsavg 1.1w
    Canonical URL
    Open Graph0/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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
    9
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    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
    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.
    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+
    26 mg
    CO₂e / view
    255.5 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    30 mg
    vs
    Returning (cached)
    15 mg
    Annual (10K/mo)
    3.1 kg
    Emission Segments
    Data Center
    1 mg
    Network
    8 mg
    Device
    17 mg
    Resource Breakdown
    JavaScript
    165.9 KB
    CSS
    75.2 KB
    HTML
    14.0 KB
    Other
    320 B
    Green Hosting Verified
    IONOS SE
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    88%Very Good
    Static / Informational

    HTTPS

    No WAF

    230d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    26.12.2025

    Valid Until

    09.01.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.rgraph.netrgraph.net

    SHA-256 Fingerprint

    AE:BC:30:7B:8E:77:93:F8:54:58:8E:99:7F:5D:A0:CF:EB:4D:01:EB...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    cache-control
    🔵 1 Week(public, private, max-age=604800)
    content-encoding
    📦 Gzip(gzip)
    content-length
    14058
    content-type
    text/html
    date
    Sun, 24 May 2026 11:28:52 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    mx01.ionos.co.uk
    mx00.ionos.co.uk

    Domain Information

    rgraph.net

    Domain Age
    17y 5m

    Created

    12.12.2008

    Expires

    12.12.2026

    Last Updated

    06.01.2021

    Registrar

    IONOS SE

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    C
    61/100
    Mobile Friendly3 breakpoints
    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

    HeaderFont + sans-serif

    WCAG Partial
    67/100
    Readability
    /30
    20/30

    24px · LH 1.88

    Hierarchy
    /20
    18/20

    2.25x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    2.59:1 min contrast

    Performance
    /25
    13/25

    1 font · 1 req

    Heading Font

    HeaderFont

    Sans54px

    Body Font

    sans-serif

    Sans24px

    Contrast Ratio

    2.59:1

    29 issues

    Reading Comfort

    Dual Sans-Serif

    left aligned
    54px
    h1
    36px
    h2
    24px
    p

    ✅ Excellent readability: 24px body text is ideal for all devices.

    ⚠️ Wide line spacing (1.88). 1.4–1.6 is optimal for body text.

    ⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 29 elements below WCAG AA threshold (min 2.6:1).

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

    ✅ Strong hierarchy: Headlines are 2.2x larger than body text.

    Buy on MyFontsFlesch 33

    Color Palette

    7 unique colors
    21:1 AAA Light
    #ffffff
    Text· 65.7%
    #000000
    Background· 22.499999999999996%
    #dde4e7
    Primary· 2.3%

    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

    22 Resources

    18
    Scripts
    4
    Styles
    0
    Async
    1
    Defer

    Top Script Sources

    local(18)

    Website Identity

    RGraph charts

    WebApplication

    Easy-to-use JavaScript charts - over 60 different SVG and canvas charts. RGraph is GPL licensed.

    www.rgraph.net
    17 years old
    Location detected: 🇩🇪 Germanyvia ip
    IONOS SE

    Sponsored

    Last analyzed: 24 May 2026 at 11:29

    Historical Analysis & Change Tracking