jstatsoft.org

https://jstatsoft.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026

Export

jstatsoft.org

Mobile

Sponsored

Hosting Provider

Uibk

IP Address

138.232.16.156

Site Location

🇦🇹 Austriavia ip

Server Location

🇦🇹 Innsbruck, Austria

ASN

AS1110

Organization

Uibk

Server

Apache

Nameservers

ns82.worldnic.com.ns81.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

892 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

19 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Uibk

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

Web Servers

Languages

SEO Analysis

C61/100

Meta Tags11/15

Content11/12

Headings3/8

Technical13/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social1/5

Freshness0/4

Mobile4/4

Indexability3/3

jstatsoft.orgjstatsoft.org

Journal of Statistical Software

The Journal of Statistical Software publishes articles on statistical software along with the source code of the software itself and replication code for all...

Description truncated.

Title Length31 chars

Recommended: 50-60 chars (~186px / 580px)

Description Length176 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Local SEO

Local Search Readiness

6/100

Poor

2 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

D42/100

Bot Access

20/25

Machine Read.

13/25

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

nav

Text ratio:5%

Words:692

Token eff.:Optimal

Sections/1K:21.7

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary131w

Descriptive Headingsavg 7.2w

Canonical URL

Open Graph0/3

Twitter Card1/3

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.

75/100

Passed

Critical

Warnings

Images & Alt Text

8/20

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

11/15

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.

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.

27/100

272 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

311 mg

Returning (cached)

156 mg

Annual (10K/mo)

32.7 kg

Emission Segments

Data Center

61 mg

Network

65 mg

Device

146 mg

Resource Breakdown

JavaScript

1.5 MB

Images

158.6 KB

CSS

206.8 KB

HTML

70.1 KB

Other

199.5 KB

Green Hosting Not Verified

Uibk

6 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

40d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

12.03.2026

Valid Until

10.06.2026

Subject Alternative Names (2)

jstatsoft.orgwww.jstatsoft.org

SHA-256 Fingerprint

5B:A9:50:E9:F9:07:B7:4D:9C:0C:1A:72:09:1D:74:9B:23:D2:6F:F7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store)

connection

Keep-Alive

content-type

text/html; charset=utf-8

date

Thu, 30 Apr 2026 04:16:06 GMT

keep-alive

timeout=5, max=99

server

Apache/2.4.37 (Rocky Linux) OpenSSL/1.1.1k

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (3)

mxext3.mailbox.org

mxext2.mailbox.org

mxext1.mailbox.org

Domain Information

jstatsoft.org

Domain Age

25y 10m

Created

06.07.2000

Expires

06.07.2033

Last Updated

16.04.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

74/100

Mobile Friendly

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Barlow

WCAG Partial

68/100

Readability

/30

23/30

14px · LH 1.43

Hierarchy

/20

12/20

2.57x ratio

WCAG

/25

14/25

2.07:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Barlow

Sans36px

Body Font

Barlow

Sans14px

Contrast Ratio

2.07:1

37 issues

Reading Comfort

~45 CPL

Optimal (45–75)

36px

30px

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 37 elements below WCAG AA threshold (min 2.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

Buy on MyFontsFlesch 30

Color Palette

8 unique colors

Light

#ffffff

Primary· 65.3%

#0079a9

Primary· 17.5%

#c8dee2

Secondary· 2.8%

#95c1cd

Secondary· 2.6%

#7c9ba1

Secondary· 2.5%

#2b4149

Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

jstatsoft.org(5)

Website Identity

jstatsoft.org

25 years old

Location detected: 🇦🇹 Austriavia ip

Network Solutions, LLCen-US

Social Profiles

Facebook X (Twitter)

Sponsored

Last analyzed: 30 Apr 2026 at 04:16

Historical Analysis & Change Tracking