StackOptic
Back to Search
heureka.group favicon

heureka.group

https://heureka.group· First analyzed 15 May 2026· Updated 15 May 2026
Export
heureka.group
Desktop screenshot of heureka.group
Mobile screenshot of heureka.group
Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

216.150.16.193

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

CDN

Cloudflare

WAF

Cloudflare

Nameservers

rajeev.ns.cloudflare.com.marjory.ns.cloudflare.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
832 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
774 KB
65 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Platform
Vercel
CDN
Cloudflare

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Hotjar

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Platforms

1
Vercel

SEO Analysis

B76/100
23
5
1
Meta Tags14/15
Content10/12
Headings7/8
Technical18/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
H
heureka.groupheureka.group

Získejte větší viditelnost a lepší výsledky s Heurekou!

Jsme největší cenový srovnávač a nákupní průvodce v Evropě. Propojujeme e-shopy a značky s relevantními zákazníky nejen v Česku, ale i v dalších 8 zemích Evr...

Description truncated.
Title Length55 chars

Recommended: 50-60 chars (~327px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (34/36) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

367 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

12/100
Poor
4 11 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D51/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
18/25

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
data-nosnippet

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:3%
Words:794
Token eff.:Optimal
Sections/1K:8.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary50w
Descriptive Headingsavg 7.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
77/100
12
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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
78 mg
CO₂e / view
774.4 KB
Page Weight
80%
Cleaner Than
New Visitor
89 mg
vs
Returning (cached)
45 mg
Annual (10K/mo)
9.4 kg
Emission Segments
Data Center
4 mg
Network
23 mg
Device
51 mg
Resource Breakdown
JavaScript
298.7 KB
Images
101.1 KB
CSS
134.4 KB
Fonts
28.4 KB
HTML
33.3 KB
Other
178.5 KB
Green Hosting Verified
Cloudflare
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

87d

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

12.05.2026

Valid Until

10.08.2026

Subject Alternative Names (1)

heureka.group

SHA-256 Fingerprint

32:E5:67:DA:E8:44:AE:D3:9B:F4:3F:38:FA:1E:49:9B:31:22:D4:46...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

age
0
cache-control
🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 04:17:57 GMT
link
</_next/static/media/47df9ba1c7236d3b-s.p.7bbb93ea.woff2>; r...
Good Warning Issue

Email Infrastructure

Google Workspace

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

heureka.group

Domain Age
6y 7m

Created

25.09.2019

Expires

25.09.2026

Last Updated

31.08.2025

Registrar

Gransy, s.r.o.

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Data Protection Officer mentioned

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.
B
70/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

AtypBLText + Source Sans 3

WCAG Partial
75/100
Readability
/30
22/30

19px · LH 1.35

Hierarchy
/20
16/20

3.37x ratio

WCAG
/25
17/25

2.87:1 min contrast

Performance
/25
20/25

2 fonts · 3 req

Heading Font

AtypBLText

Sans64px

Body Font

Source Sans 3

Sans19px

Contrast Ratio

2.87:1

4 issues

Reading Comfort

~35 CPL

Narrow lines
64px
h1
48px
h2
40px
h3
19px
p

✅ Excellent readability: 19px body text is ideal for all devices.

⚠️ Tight line spacing (1.35). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 2.9:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFonts

Color Palette

8 unique colors
18.58:1 AAA Light
#ffffff
Background· 64%
#131313
Text· 1.1%
#ee5f00
Primary· 12.8%
#e1a975
Accent· 5%
#6896b3
Secondary· 3.8%
#7b4727
Accent· 2%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
HotjarMid-Market

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

22 Resources

20
Scripts
2
Styles
18
Async
1
Defer

Top Script Sources

local(14)googletagmanager.com(2)ase1.excello.cz(1)static.hotjar.com(1)sdk.privacy-center.org(1)

Website Identity

heureka.group

info@heureka.cz
+420 488 570 070
6 years old
Location detected: 🇨🇿 Czech Republicvia phone
Gransy, s.r.o.📧 Google Workspacecs

Sponsored

Last analyzed: 15 May 2026 at 04:18

Historical Analysis & Change Tracking