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b4x.com

https://b4x.com· First analyzed 13 May 2026· Updated 13 May 2026
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b4x.com
Desktop screenshot of b4x.com
Mobile screenshot of b4x.com
Mobile

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Hosting Provider

SourceDNS

IP Address

67.227.218.133

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Lansing, United States

ASN

AS32244

Organization

SourceDNS

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

paris.ns.cloudflare.com.rustam.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
550 ms10%
Speed Index
715 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
407 KB
27 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.3.2
cms
altitude-proCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Plugins

1
Autoptimize

SEO Analysis

C68/100
21
8
1
Meta Tags12/15
Content8/12
Headings8/8
Technical20/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile2/4
Indexability3/3
B
b4x.comb4x.com

Cross platform RAD development tools | B4X

B4X is a programming language and a set of cross-platform RAD development tools that allow complete beginners, citizen developers, and professionals to build...

Description truncated.
Title Length42 chars

Recommended: 50-60 chars (~257px / 580px)

Description Length203 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (20/28) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

13 rules

Sitemap reference found

Local SEO

Local Search Readiness

9/100
Poor
3 13 2

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

Sponsored

AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
3/25
Citation
10/25

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:9%
Words:433
Token eff.:Optimal
Sections/1K:25.4
Depth:2/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary13w
Descriptive Headingsavg 3.3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
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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
72/100
12
Passed
1
Critical
0
Warnings
Images & Alt Text
5/20
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
13/15
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.
1 recommendation
  • •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.
58/100
A
50 mg
CO₂e / view
406.8 KB
Page Weight
90%
Cleaner Than
New Visitor
58 mg
vs
Returning (cached)
29 mg
Annual (10K/mo)
6.0 kg
Emission Segments
Data Center
11 mg
Network
12 mg
Device
27 mg
Resource Breakdown
JavaScript
138.0 KB
Images
68.1 KB
CSS
190.7 KB
Fonts
2.7 KB
HTML
7.4 KB
Green Hosting Not Verified
SourceDNS
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

51d

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

04.04.2026

Valid Until

03.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

b4x.com*.b4x.com

SHA-256 Fingerprint

A5:71:90:06:A9:8F:D6:84:52:D7:A4:69:66:13:CC:B2:7B:0E:8A:04...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9faf46ba893c6aeb-FRA
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Wed, 13 May 2026 05:31:20 GMT
link
<https://www.b4x.com/wp-json/>; rel="https://api.w.org/", <h...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

b4x.com

Domain Age
26y 2m

Created

18.03.2000

Expires

18.03.2031

Last Updated

05.03.2026

Registrar

GoDaddy.com, LLC

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.
B
70/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial
63/100
Readability
/30
19/30

20px · LH 1.10

Hierarchy
/20
13/20

1.2x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
15/25

1 font · 2 req

Heading Font

Open Sans

Sans24px

Body Font

Open Sans

Sans20px

Contrast Ratio

1:1

18 issues

Reading Comfort

~44 CPL

Narrow lines
24px
h1
60px
h2
35px
h3
16px
h4
20px
p
Major Third
Scale

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

⚠️ Tight line spacing (1.10). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle FontsFlesch 64

Color Palette

9 unique colors
5.5:1 AA Dark
#68696b
Other· 54.80000000000001%
#ffffff
Primary· 8.9%
#4d809c
Secondary· 4.1%

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

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Scripts & Styles

12 Resources

8
Scripts
4
Styles
5
Async
2
Defer

Top Script Sources

b4x.com(4)googletagmanager.com(3)google-analytics.com(1)

Website Identity

b4x.com

[email protected]
26 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLCen-US

Sponsored

Last analyzed: 13 May 2026 at 05:31

Historical Analysis & Change Tracking