pngquant.org

https://pngquant.org· First analyzed 05 May 2026· Updated 05 May 2026

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pngquant.org

Mobile

Sponsored

Hosting Provider

Host Europe

hosteurope.de

IP Address

83.169.2.68

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Strasbourg, France

ASN

AS8972

Organization

Hosteurope GmbH

Server

Nginx

Nameservers

ns-221-b.gandi.net.ns-95-c.gandi.net.ns-228-a.gandi.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

341 ms10%

Speed Index

443 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

113 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Host Europe

Technology Stack

1 Technologies Detected

Web Servers

Nginxv1.21.0

SEO Analysis

D59/100

Meta Tags7/15

Content12/12

Headings8/8

Technical11/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

pngquant.orgpngquant.org

pngquant — lossy PNG compressor

No description available for this page.

Title Length31 chars

Recommended: 50-60 chars (~195px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

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.

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

16/25

Schema Data

0/25

Citation

5/25

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

code blocksdef. lists

Text ratio:40%

Words:698

Token eff.:Optimal

Sections/1K:15.8

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary14w

Descriptive Headingsavg 1.2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

71/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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.

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.

61/100

A+

14 mg

CO₂e / view

112.7 KB

Page Weight

95%

Cleaner Than

New Visitor

16 mg

Returning (cached)

8 mg

Annual (10K/mo)

1.7 kg

Emission Segments

Data Center

3 mg

Network

3 mg

Device

8 mg

Resource Breakdown

Images

107.7 KB

HTML

5.0 KB

Green Hosting Not Verified

Host Europe

3 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

96%Excellent

Static / Informational

HTTPS

No WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (2)

pngquant.orgwww.pngquant.org

SHA-256 Fingerprint

4A:F8:7B:36:1F:70:10:6C:4B:AD:5D:5D:30:FE:FA:84:8C:3F:6D:D6...

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests

content-type

text/html

date

Tue, 05 May 2026 12:59:22 GMT

etag

W/"6580ade8-2aad"

last-modified

Mon, 18 Dec 2023 20:39:04 GMT

Good Warning Issue

Email Infrastructure

Fastmail

Score

SPF

DKIM

DMARC

MX Records (2)

in1-smtp.messagingengine.com

in2-smtp.messagingengine.com

Domain Information

pngquant.org

Domain Age

14y 4m

Created

27.12.2011

Expires

27.12.2031

Last Updated

06.12.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

45/100

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.

Viewport

width=480

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG AAA

82/100

Readability

/30

21/30

15px · LH 1.40

Hierarchy

/20

17/20

3x ratio · ✓ H1→H6

WCAG

/25

24/25

9.4:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans46px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~40 CPL

Narrow lines

46px

30px

18px

15px

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

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

Flesch 51

Color Palette

10 unique colors

3.38:1 AA Large Light

#ffffff

Background· 83.10000000000001%

#7f8f8e

Other· 2.2%

#171313

Primary· 2.5%

#831322

Accent· 1.8%

#1a3764

Accent· 1.3%

#b9d9c3

Secondary· 1.2%

#784448

Secondary· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Website Identity

pngquant.org

14 years old

Location detected: 🇫🇷 Francevia ip

Gandi SAS📧 Fastmail

Social Profiles

GitHub

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Last analyzed: 05 May 2026 at 12:59

Historical Analysis & Change Tracking