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heureka.fi

https://heureka.fi· First analyzed 19 May 2026· Updated 19 May 2026
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heureka.fi
Desktop screenshot of heureka.fi
Mobile screenshot of heureka.fi
Mobile

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Hosting Provider

Shopify
shopify.com

IP Address

23.227.38.65

Site Location

🇫🇮 Finlandvia tld

Server Location

🇨🇦 Ottawa, Canada

ASN

AS13335

Organization

Shopify, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

leo.ns.cloudflare.com.irma.ns.cloudflare.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
908 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.2 MB
268 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Shopify
Infrastructure
Hosting
Shopify
CDN
Cloudflare

Technology Stack

12 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar

Email Marketing

2
MailchimpKlaviyo

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

B75/100
25
2
1
Meta Tags12/15
Content3/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
H
heureka.fiheureka.fi

Heureka – Tiedekeskus Heureka

Heureka on suomalainen tiedekeskus, jossa tutustutaan tieteeseen ja teknologiaan hauskalla tavalla itse tehden ja kokeillen.

Title Length30 chars

Recommended: 50-60 chars (~183px / 580px)

Description Length124 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (4 words). Search engines need substantial content for ranking.

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

13 URLs

13 sub-sitemaps

robots.txt

162 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100
Needs Work
7 11

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AI & LLM Readiness

D43/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
8/25
Citation
7/25

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.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:6%
Words:12,688
Token eff.:Excessive

Structured Data

3 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
C
68/100
9
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
3/15
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.
30/100
F
1.06 g
CO₂e / view
10.2 MB
Page Weight
5%
Cleaner Than
New Visitor
1.21 g
vs
Returning (cached)
604 mg
Annual (10K/mo)
126.9 kg
Emission Segments
Data Center
52 mg
Network
311 mg
Device
695 mg
Resource Breakdown
JavaScript
1.2 MB
Images
553.5 KB
CSS
284.1 KB
HTML
90.5 KB
Other
8.1 MB
Green Hosting Verified
Cloudflare
GWF Verified
7 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

WAF

61d

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/2+H3

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (1)

www.heureka.fi

SHA-256 Fingerprint

31:45:3A:71:6A:F1:8D:DB:6F:9E:C4:22:30:D9:59:0B:09:6B:1E:3A...

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9fe04bf29deb6f9a-CDG
content-encoding
⚡ Brotli(br)
content-language
fi-FI
content-length
92364
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

heureka-fi.mail.protection.outlook.com

Domain Information

heureka.fi

Domain Age
35y 4m

Created

01.01.1991

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis 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.
C
68/100
Mobile Friendly3 breakpoints
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...
Upgrade to view recommendations

Typography & Readability

Cera Pro Bold + Cera Pro

WCAG Partial
65/100
Readability
/30
14/30

13px · LH 1.40

Hierarchy
/20
17/20

3.2x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

Cera Pro Bold

Sans40px

Body Font

Cera Pro

Sans13px

Contrast Ratio

1:1

6 issues

Reading Comfort

~37 CPL

Narrow lines
40px
h1
40px
h2
13px
p
Minor Second
Scale

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

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 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 3.2x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

7 unique colors
20.87:1 AAA Light
#ffffff
Background· 33.5%
#010101
Primary· 24.200000000000003%
#39302a
Secondary· 6.4%
#51ff51
Accent· 3.1%
#98dd97
Accent· 2.8%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

1
MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

4

Categories

5

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
15
Async
6
Defer

Top Script Sources

heureka.fi(7)consent.cookiebot.com(2)connect.facebook.net(2)chimpstatic.com(2)googletagmanager.com(2)

Website Identity

Tiedekeskus Heureka

Tiedekeskus Heureka

Organization

Heureka on suomalainen tiedekeskus, jossa tutustutaan tieteeseen ja teknologiaan hauskalla tavalla itse tehden ja kokeillen.

asiakaspalvelu@heureka.fi
www.heureka.fi
35 years old
Location detected: 🇫🇮 Finlandvia tld
📧 Microsoft 365fi

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Last analyzed: 19 May 2026 at 04:18

Historical Analysis & Change Tracking