quantum-journal.org

https://quantum-journal.org· First analyzed 15 May 2026· Updated 15 May 2026

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quantum-journal.org

Mobile

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Hosting Provider

Webhostone

IP Address

89.107.186.85

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Karlsruhe, Germany

ASN

AS12843

Organization

Webhostone

Server

Nginx

Nameservers

ns1.nshost2.de.ns3.nshost2.net.ns2.nshost2.de.

Performance

Core Web Vitals

Weight

First Contentful Paint

711 ms10%

Speed Index

924 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.7 MB

49 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

OnePressv2.3.17

by FameThemes

View Theme

Technology Stack

10 Technologies Detected

Plugins

Libraries

CSS Frameworks

Icon Libraries

Fonts

Web Servers

Languages

Security

SEO Analysis

B72/100

Meta Tags12/15

Content11/12

Headings8/8

Technical16/25

E-E-A-T3/7

Images3/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

quantum-journal.orgquantum-journal.org

Quantum – the open journal for quantum science

Quantum is an open-access peer-reviewed journal for quantum science and related fields. Quantum is non-profit and community-run: an effort by researchers and...

Description truncated.

Title Length46 chars

Recommended: 50-60 chars (~289px / 580px)

Description Length246 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (17/32) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

4 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.

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AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

0/25

Citation

15/25

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:8%

Words:1,336

Token eff.:Optimal

Sections/1K:15

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary31w

Descriptive Headingsavg 6.9w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

AI readiness recommendation preview...

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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.

82/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

14/15

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

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

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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.

31/100

215 mg

CO₂e / view

1.7 MB

Page Weight

60%

Cleaner Than

New Visitor

246 mg

Returning (cached)

123 mg

Annual (10K/mo)

25.8 kg

Emission Segments

Data Center

48 mg

Network

52 mg

Device

116 mg

Resource Breakdown

JavaScript

346.9 KB

Images

649.7 KB

CSS

716.7 KB

Fonts

2.7 KB

HTML

24.0 KB

Green Hosting Not Verified

Webhostone

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

174d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.04.2026

Valid Until

05.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

quantum-journal.orgwww.quantum-journal.org

SHA-256 Fingerprint

AC:59:2B:DD:46:D9:BE:A5:B6:2E:65:AD:66:94:C0:14:CF:45:5C:38...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 23:09:11 GMT

link

<https://quantum-journal.org/wp-json/>; rel="https://api.w.o...

server

nginx

x-powered-by

PHP/7.4.33

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

xa7.serverdomain.org

Domain Information

quantum-journal.org

Domain Age

10y 2m

Created

11.03.2016

Expires

11.03.2027

Last Updated

25.04.2026

Registrar

RegistryGate GmbH

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.

82/100

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

Typography & Readability

Helvetica

WCAG Partial

58/100

Readability

/30

16/30

14px · LH 1.70

Hierarchy

/20

12/20

1.57x ratio

WCAG

/25

16/25

2.85:1 min contrast

Performance

/25

14/25

3 fonts · 5 req

Heading Font

Helvetica

Sans22px

Body Font

Helvetica

Sans14px

Contrast Ratio

2.85:1

33 issues

Reading Comfort

~51 CPL

Optimal (45–75)

22px

32px

14px

Augmented Fourth

Scale

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

✅ Optimal line length: ~51 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 33 elements below WCAG AA threshold (min 2.9:1).

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts Buy on MyFontsFlesch 19

Color Palette

6 unique colors

2.06:1 Fail Light

#ffffff

Background· 86.50000000000003%

#b6b4b8

Other· 3.3%

#715789

Primary· 2.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

quantum-journal.org(10)gstatic.com(1)cdnjs.cloudflare.com(1)google.com(1)

Website Identity

quantum-journal.org

info@quantum-journal.org

10 years old

Location detected: 🇩🇪 Germanyvia ip

RegistryGate GmbHen-GB

Social Profiles

Facebook X (Twitter)Reddit

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Last analyzed: 15 May 2026 at 23:09

Historical Analysis & Change Tracking