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billdu.com

https://billdu.com· First analyzed 14 May 2026· Updated 14 May 2026
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billdu.com
Desktop screenshot of billdu.com
Mobile screenshot of billdu.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.11.2

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

kiki.ns.cloudflare.com.jay.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
547 ms10%
Speed Index
711 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
736 KB
65 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPressv6.9.4
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

18 Technologies Detected

Plugins

5
WPML
Ewww Image Optimizer
WP Rocket
Elementor
WPML

Libraries

2
jQueryv3.7.1
jQuery UI

CSS Frameworks

2
Bootstrapv6.9.4
Tailwind CSS

Other

1
GSAP

UI Components

1
Swiper

Other

1
lazysizes

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Customer Support

1
Intercom

Reviews

1
Trustpilot

CDN

1
Cloudflare

SEO Analysis

A+94/100
29
2
0
Meta Tags14/15
Content11/12
Headings8/8
Technical24/25
E-E-A-T7/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
B
billdu.combilldu.com

Billdu: Invoicing Software for Small Businesses

Professional invoicing software for small businesses. Create professional-looking invoices, estimates, purchase orders, delivery notes, & more with Billdu apps.

Title Length47 chars

Recommended: 50-60 chars (~275px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

    2 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    4 URLs

    4 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    22/100
    Needs Work
    6 12 1

    Sponsored

    AI & LLM Readiness

    C61/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    10/25
    Citation
    18/25

    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
    nav
    Text ratio:6%
    Words:2,494
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    7 JSON-LD
    Article×1.2Person×1.3(min)Organization×1.1(min)WebSiteSearchAction

    Citation Readiness

    Opening Summary42w
    Descriptive Headingsavg 2.9w
    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
    75/100
    11
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    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
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    82/100
    A
    74 mg
    CO₂e / view
    736.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    85 mg
    vs
    Returning (cached)
    43 mg
    Annual (10K/mo)
    8.9 kg
    Emission Segments
    Data Center
    4 mg
    Network
    22 mg
    Device
    49 mg
    Resource Breakdown
    JavaScript
    9.8 KB
    Images
    216.7 KB
    CSS
    218.4 KB
    Fonts
    246.3 KB
    HTML
    41.1 KB
    Other
    3.9 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    62d

    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

    Valid From

    17.04.2026

    Valid Until

    16.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    billdu.com*.billdu.com

    SHA-256 Fingerprint

    EC:91:96:7F:AD:E9:18:CA:49:6A:CD:55:75:13:4C:AA:7C:D8:1B:55...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9fbad2551a32a8a7-CDG
    content-encoding
    📦 Gzip(gzip)
    content-length
    41770
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

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

    +1 more

    Domain Information

    billdu.com

    Domain Age
    10y 8m

    Created

    28.08.2015

    Expires

    28.08.2026

    Last Updated

    13.08.2025

    Registrar

    Gransy, s.r.o.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    iubenda

    Cookie Consent Banner
    iubenda
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: iubenda
    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
    74/100
    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, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Sonda Heavy + Inter Regular

    WCAG Partial
    81/100
    Readability
    /30
    25/30

    20px · LH 1.50

    Hierarchy
    /20
    18/20

    2.76x ratio · ✓ H1→H6

    WCAG
    /25
    20/25

    2.62:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 5 req

    Heading Font

    Sonda Heavy

    Sans55px

    Body Font

    Inter Regular

    Sans20px

    Contrast Ratio

    2.62:1

    1 issue

    Reading Comfort

    ~33 CPL

    Narrow lines
    55px
    h1
    213px
    h2
    30px
    h3
    14px
    h4
    20px
    p
    Perfect Fifth
    Scale

    ✅ Excellent readability: 20px body text is ideal for all devices.

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

    ⚠️ Partial contrast: 1 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 2.8x larger than body text.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    Buy on MyFontsFluid Type (rem)Flesch 70

    Color Palette

    8 unique colors
    Light
    #ffffff
    Background· 78.6%
    #a2adcf
    Secondary· 3.2%
    #fa7647
    Primary· 2.7%
    #0d2cca
    Accent· 2.7%
    #5161b3
    Secondary· 2.2%
    #050c48
    Accent· 2.1%
    #e7bcaf
    Accent· 1%

    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

    10 Resources

    3
    Scripts
    7
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    billdu.com(2)googletagmanager.com(1)

    Website Identity

    Billdu

    Person

    Professional invoicing software for small businesses. Create professional-looking invoices, estimates, purchase orders, delivery notes, & more with Billdu apps.

    www.billdu.com/author/admin/
    10 years old
    Location detected: 🇨🇦 Canadavia ip
    Gransy, s.r.o.📧 Google Workspaceen-US

    Social Profiles

    InstagramLinkedIn

    Sponsored

    Last analyzed: 14 May 2026 at 15:09

    Historical Analysis & Change Tracking

    billdu.com Technology Stack - Built With jQuery, jQuery UI, GSAP, Swiper, lazysizes | StackOptic | StackOptic