irfanview.net

https://irfanview.net· First analyzed 13 May 2026· Updated 13 May 2026

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irfanview.net

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

91.99.64.95

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

ns1.your-server.de.ns3.second-ns.de.ns.second-ns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

619 ms10%

Speed Index

805 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

223 KB

14 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hetzner

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Apache

SEO Analysis

D56/100

Meta Tags5/15

Content10/12

Headings6/8

Technical14/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

irfanview.netirfanview.net

IrfanView - Official Homepage - One of the Most Popular Viewers Wor...

IrfanView ... one of the most popular viewers worldwide.

Title truncated.

Title Length73 chars

Recommended: 50-60 chars (~455px / 580px)

Description Length56 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (73 chars, ~455px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

7 rules

Local SEO

Local Search Readiness

5/100

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

F32/100

Bot Access

19/25

Machine Read.

6/25

Schema Data

0/25

Citation

7/25

AI Bot Access

12/14 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

header/footer

Text ratio:12%

Words:213

Token eff.:Too Short

Sections/1K:9.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary23w

Descriptive Headingsavg 4w

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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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.

73/100

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

12/15

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.

2 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.

69/100

A+

23 mg

CO₂e / view

223.1 KB

Page Weight

95%

Cleaner Than

New Visitor

26 mg

Returning (cached)

13 mg

Annual (10K/mo)

2.7 kg

Emission Segments

Data Center

1 mg

Network

7 mg

Device

15 mg

Resource Breakdown

Images

115.8 KB

CSS

96.3 KB

HTML

11.0 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

66d

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/2

Valid From

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (2)

irfanview.netwww.irfanview.net

SHA-256 Fingerprint

F4:FE:E9:55:04:61:CF:34:05:3E:2A:F6:C8:24:43:08:0A:70:C6:F1...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-length

10928

content-type

text/html

date

Wed, 13 May 2026 15:25:02 GMT

etag

"2ab0-647f74647e5cb"

last-modified

Fri, 09 Jan 2026 16:47:01 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

dedivirt4118.your-server.de

Domain Information

irfanview.net

Domain Age

22y 1m

Created

29.03.2004

Expires

29.03.2027

Last Updated

25.11.2025

Registrar

Hetzner Online 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.

57/100

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...

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Typography & Readability

Arial

WCAG Partial

62/100

Readability

/30

18/30

15px · LH 1.50

Hierarchy

/20

10/20

1.73x ratio

WCAG

/25

14/25

2.3:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Arial

Sans26px

Body Font

Arial

Sans15px

Contrast Ratio

2.3:1

8 issues

Reading Comfort

~33 CPL

Narrow lines

26px

16px

18px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.3:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

Flesch 51

Color Palette

10 unique colors

13.48:1 AAA Light

#ffffff

Background· 30.500000000000004%

#2f2e32

Other· 8.4%

#100d16

Primary· 11.4%

#404c3e

Border· 9.1%

#b7b1a7

Secondary· 6%

#5d6147

Secondary· 5.7%

#7d8b6b

Secondary· 5.2%

#dadbcb

Secondary· 4.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

irfanview.net

irfanview@gmx.net

22 years old

Location detected: 🇩🇪 Germanyvia ip

Hetzner Online GmbHen

Sponsored

Last analyzed: 13 May 2026 at 15:25

Historical Analysis & Change Tracking