c3.hu

https://c3.hu· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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c3.hu

Mobile

Sponsored

Hosting Provider

Magyar Telekom

IP Address

194.38.96.9

Site Location

🇭🇺 Hungaryvia tld

Server Location

🇭🇺 Győr, Hungary

ASN

AS5483

Server

Apache

Nameservers

ns2.c3.hu.ns1.c3.hu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

287 ms10%

Speed Index

373 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

31 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Magyar Telekom

Technology Stack

3 Technologies Detected

Advertising

Google Ads Google AdSense

Web Servers

Apachev2.4.61

SEO Analysis

D51/100

Meta Tags11/15

Content5/12

Headings6/8

Technical7/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

c3.huc3.hu

C3 - Center for Culture & Communication Foundation

Center for Culture and Communication

Title Length50 chars

Recommended: 50-60 chars (~306px / 580px)

Description Length36 chars

Recommended: 120-160 chars

Issues (1)

• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

4 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.

Sponsored

AI & LLM Readiness

F28/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

4/25

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:4%

Words:52

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary15w

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 (11)

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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.

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.

29/100

193 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

220 mg

Returning (cached)

110 mg

Annual (10K/mo)

23.1 kg

Emission Segments

Data Center

43 mg

Network

46 mg

Device

103 mg

Resource Breakdown

Images

1.5 MB

HTML

10.7 KB

Green Hosting Not Verified

Magyar Telekom

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

54d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

26.03.2026

Valid Until

24.06.2026

Subject Alternative Names (3)

w3.c3.huwww.c3.huwww.c3.net

SHA-256 Fingerprint

6C:59:07:3C:A2:76:8D:D8:02:18:87:61:B2:80:01:88:C6:E6:5F:0A...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-type

text/html

date

Thu, 30 Apr 2026 05:38:28 GMT

keep-alive

timeout=5, max=100

server

Apache/2.4.61 (FreeBSD) OpenSSL/3.0.15 mod_fcgid/2.3.9 SVN/1...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mail01.c3.hu

mail.c3.hu

Domain Information

c3.hu

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.

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.

5 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG Partial

74/100

Readability

/30

22/30

16px · LH --

Hierarchy

/20

19/20

2x ratio · ✓ H1→H6

WCAG

/25

19/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

1:1

2 issues

Reading Comfort

Single Font Family

left aligned

32px

16px

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

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

12 unique colors

21:1 AAA Light

#ffffff

Background· 81.10000000000001%

#000000

Text· 7.2%

#fc0202

Primary· 3.2%

#354e66

Secondary· 1.5%

#619c86

Secondary· 1.4%

#161f30

Secondary· 1%

#947370

Secondary· 1%

#c92821

Accent· 0.9%

Business & Marketing Stack

1 Tools Detected

Growing

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(1)Scripts(1)c3.hu(1)

Website Identity

c3.hu

Location detected: 🇭🇺 Hungaryvia tld

Social Profiles

Facebook Instagram

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Last analyzed: 30 Apr 2026 at 05:38

Historical Analysis & Change Tracking