os2museum.com

https://os2museum.com· First analyzed 16 May 2026· Updated 16 May 2026

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os2museum.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.161.254

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

elle.ns.cloudflare.com.dom.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

484 ms10%

Speed Index

629 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

116 KB

8 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

1 Technologies Detected

CDN

Cloudflare

SEO Analysis

F24/100

Meta Tags4/15

Content1/12

Headings0/8

Technical6/25

E-E-A-T0/7

Images0/7

Links1/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

os2museum.comos2museum.com

The OS/2 Museum

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars (~101px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (13 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

13 issues found

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Crawlability

Sitemap

robots.txt

7 rules

Local SEO

Local Search Readiness

0/100

Poor

15 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

F22/100

Bot Access

20/25

Machine Read.

2/25

Schema Data

0/25

Citation

0/25

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:15%

Words:10

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

63/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

3/20

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.

3 recommendations

•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.

65/100

A+

12 mg

CO₂e / view

115.9 KB

Page Weight

95%

Cleaner Than

New Visitor

13 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.4 kg

Emission Segments

Data Center

<0.001 g

Network

3 mg

Device

8 mg

Resource Breakdown

HTML

115.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Static / Informational

No SSL

No WAF

nulld

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9fce41eecced9f3f-FRA

content-encoding

zstd

content-security-policy

upgrade-insecure-requests;

content-type

text/html

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.os2museum.com

Domain Information

os2museum.com

Domain Age

15y 10m

Created

24.07.2010

Expires

24.07.2026

Last Updated

17.07.2025

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

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.

32/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue + Georgia

WCAG Partial

80/100

Readability

/30

29/30

16px · LH 1.50

Hierarchy

/20

14/20

1.88x ratio · ✓ H1→H6

WCAG

/25

17/25

1.06:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans30px

Body Font

Georgia

Serif16px

Contrast Ratio

1.06:1

26 issues

Reading Comfort

~73 CPL

Optimal (45–75)

30px

21px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

✅ Optimal line length: ~73 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 26 elements below WCAG AA threshold (min 1.1:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 52

Color Palette

5 unique colors

Light

#ffffff

Text· 99.69999999999995%

#b0b0d7

Primary· 0.30000000000000004%

#908fd9

Secondary· 0.1%

#c1c2e5

Secondary· 0.1%

#e7e8f4

Secondary· 0.1%

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Website Identity

os2museum.com

15 years old

Location detected: 🇨🇦 Canadavia ip

Tucows Domains Inc.

Sponsored

Last analyzed: 16 May 2026 at 23:45

Historical Analysis & Change Tracking