tukaani.org

https://tukaani.org· First analyzed 01 May 2026· Updated 01 May 2026

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tukaani.org

Mobile

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Hosting Provider

Zoner Oy

IP Address

5.44.245.25

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Vantaa, Finland

ASN

AS201692

Organization

Zoner Oy

Server

Nginx

CDN

Proxy Cache

Nameservers

ns1.zoner.fi.ns3.zoner.fi.ns2.zoner.fi.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

549 ms10%

Speed Index

714 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

19 KB

3 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Zoner Oy

CDN

Proxy Cache

Technology Stack

1 Technologies Detected

Web Servers

Nginx

SEO Analysis

D50/100

Meta Tags4/15

Content10/12

Headings8/8

Technical11/21

E-E-A-T0/7

Images0/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

tukaani.orgtukaani.org

The Tukaani Project

No description available for this page.

Title Length19 chars

Recommended: 50-60 chars (~115px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

6 issues found

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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.

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AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

3/25

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

def. lists

Text ratio:39%

Words:216

Token eff.:Too Short

Sections/1K:18.5

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

16/20

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.

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.

57/100

A+

2 mg

CO₂e / view

19.4 KB

Page Weight

95%

Cleaner Than

New Visitor

3 mg

Returning (cached)

1 mg

Annual (10K/mo)

288 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

Images

2.2 KB

CSS

15.6 KB

HTML

1.5 KB

Green Hosting Not Verified

Zoner Oy

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

88%Very Good

Static / Informational

HTTPS

No WAF

51d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.03.2026

Valid Until

22.06.2026

Subject Alternative Names (3)

git.tukaani.orgtukaani.orgwww.tukaani.org

SHA-256 Fingerprint

54:46:DC:18:64:19:F4:B1:92:BF:CB:57:2D:85:CA:31:7C:AC:C6:93...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

1234

content-security-policy

default-src 'none'; img-src 'self' data:; style-src 'self' '...

content-type

text/html

date

Fri, 01 May 2026 23:12:44 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mailscanner01.zoner.fi

mailscanner02.zoner.fi

Domain Information

tukaani.org

Domain Age

20y 9m

Created

21.07.2005

Expires

21.07.2026

Last Updated

28.06.2025

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

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.

53/100

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

sans-serif

WCAG AAA

82/100

Readability

/30

26/30

17px · LH 1.60

Hierarchy

/20

19/20

2x ratio · ✓ H1→H6

WCAG

/25

23/25

8.95:1 min contrast

Performance

/25

14/25

0 fonts

Heading Font

sans-serif

Sans34px

Body Font

sans-serif

Sans17px

Contrast Ratio

8.95:1

WCAG AAA (≥7:1)

Reading Comfort

~35 CPL

Narrow lines

34px

27px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.9:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Fluid TypeFlesch 44

Color Palette

6 unique colors

Light

#ffffff

Background· 50.4%

#767996

Primary· 2.2%

#e6dd9c

Accent· 0.1%

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

tukaani.org

20 years old

Location detected: 🇫🇮 Finlandvia ip

CSL Computer Service Langenbach GmbH d/b/a joker.comen

Social Profiles

GitHub

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Last analyzed: 01 May 2026 at 23:13

Historical Analysis & Change Tracking