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stack.hu

https://stack.hu· First analyzed 28 May 2026· Updated 28 May 2026
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stack.hu
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Hosting Provider

Hetzner
hetzner.com

IP Address

65.21.89.233

Site Location

🇭🇺 Hungaryvia tld

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24940

Organization

Hetzner

Server

Nginx

Nameservers

ns3.domdom.net.ns2.domdom.net.ns1.domdom.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
247 ms10%
Speed Index
321 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 KB
1 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Hetzner

Technology Stack

2 Technologies Detected

Web Servers

1
Nginx

Languages

1
PHPv7.4.33

SEO Analysis

F34/100
12
8
3
Meta Tags4/15
Content3/12
Headings0/8
Technical14/25
E-E-A-T0/7
Images0/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
S
stack.hustack.hu

stack.hu

No description available for this page.

Title Length8 chars

Recommended: 50-60 chars (~47px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (38 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

3/100
Poor
1 14 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

F25/100
Bot Access
20/25
Machine Read.
2/25
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
Text ratio:14%
Words:37
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 (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.
C
66/100
8
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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.
72/100
A+
<0.001 g
CO₂e / view
1.1 KB
Page Weight
95%
Cleaner Than
New Visitor
<0.001 g
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
12 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
<0.001 g
Resource Breakdown
HTML
1.1 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

54d

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

23.04.2026

Valid Until

22.07.2026

Subject Alternative Names (1)

stack.hu

SHA-256 Fingerprint

4B:E2:6C:72:71:92:C2:92:4B:23:0A:E8:15:9A:A5:CD:44:8E:7D:91...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
873
content-type
text/html; charset=UTF-8
date
Thu, 28 May 2026 23:46:14 GMT
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

Domain Information

stack.hu

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.
D
45/100
Not 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,maximum-scale=1,minimum-scale=1
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

arial

WCAG AAA
69/100
Readability
/30
15/30

12px · LH 1.60

Hierarchy
/20
10/20
WCAG
/25
24/25

8.45:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

arial

Body Font

arial

Sans12px

Contrast Ratio

8.45:1

WCAG AAA (≥7:1)

Reading Comfort

Single Family

left aligned

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.4:1).

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

Flesch 39

Color Palette

6 unique colors
Light
#ffffff
Background· 97.39999999999999%
#c2c4d8
Primary· 0.5%
#dad9e0
Secondary· 0.5%
#b3b3cd
Secondary· 0.4%
#9695bc
Secondary· 0.3%

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Website Identity

stack.hu

Location detected: 🇭🇺 Hungaryvia tld
hu

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Last analyzed: 28 May 2026 at 23:46

Historical Analysis & Change Tracking