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jenprace.cz

https://jenprace.cz· First analyzed 21 May 2026· Updated 21 May 2026
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jenprace.cz
Desktop screenshot of jenprace.cz
Mobile screenshot of jenprace.cz
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.4.182

Site Location

🇨🇿 Praha, Czech Republicvia schema

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

coen.ns.cloudflare.com.rosalie.ns.cloudflare.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
933 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
467 KB
54 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B72/100
21
7
1
Meta Tags13/15
Content11/12
Headings3/8
Technical23/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
J
jenprace.czjenprace.cz

Práce a brigády, aktuální nabídka | JenPráce.cz

Najděte si práci či brigádu na portálu JenPráce.cz! Každý den aktuální nabídky v České republice i zahraničí.

Title Length47 chars

Recommended: 50-60 chars (~280px / 580px)

Description Length109 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

17 URLs

17 sub-sitemaps

robots.txt

183 rules

Sitemap reference found

Local SEO

Local Search Readiness

41/100
Fair
10 12 1

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AI & LLM Readiness

D58/100
Bot Access
24/25
Machine Read.
17/25
Schema Data
3/25
Citation
14/25

AI Bot Access

13/14 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
nav
Text ratio:14%
Words:2,385
Token eff.:Optimal
Sections/1K:13.8
Depth:1/5

Structured Data

1 JSON-LD
LocalBusiness×1.1
sameAs entity links

Citation Readiness

Opening Summary806w
Descriptive Headingsavg 6.2w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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
67/100
11
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
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
11/15
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.
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.
79/100
A
47 mg
CO₂e / view
466.5 KB
Page Weight
90%
Cleaner Than
New Visitor
54 mg
vs
Returning (cached)
27 mg
Annual (10K/mo)
5.7 kg
Emission Segments
Data Center
2 mg
Network
14 mg
Device
31 mg
Resource Breakdown
JavaScript
142.5 KB
Images
110.6 KB
CSS
65.7 KB
Fonts
125.8 KB
HTML
21.9 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.05.2026

Valid Until

17.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

jenprace.cz*.jenprace.cz

SHA-256 Fingerprint

25:C8:D1:F5:F3:5C:C6:88:45:28:68:6E:BD:D8:A7:53:73:7A:0A:FC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 0s(s-maxage=0, max-age=0, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray
9ff28cf57a9041ff-EWR
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Google Workspace

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx3.googlemail.com
aspmx2.googlemail.com
aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

jenprace.cz

Domain Age
13y 8m

Created

28.08.2012

Expires

27.08.2029

Last Updated

27.03.2025

Registrar

REG-WEDOS

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked
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
78/100
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, shrink-to-fit=no

Typography & Readability

Open Sans

WCAG Partial
64/100
Readability
/30
24/30

16px · LH 1.30

Hierarchy
/20
8/20
WCAG
/25
12/25

1:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

6 issues

Reading Comfort

~38 CPL

Narrow lines
28px
h2
40px
h3
18px
h4
16px
p

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Buy on MyFontsFlesch 58

Color Palette

4 unique colors
14.17:1 AAA Dark
#2a2b2d
Text· 39%
#ffffff
Primary· 15.7%
#060a15
Background· 43%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

14 Resources

10
Scripts
4
Styles
4
Async
7
Defer

Top Script Sources

local(6)d70shl7vidtft.cloudfront.net(1)googletagmanager.com(1)static.cloudflareinsights.com(1)accounts.google.com(1)

Website Identity

Coweo Technologies s.r.o.

LocalBusiness

Jsme Coweo Technologies a provozujeme druhý největší inzertní portál pro vyhledávání práce a brigád v České republice – JenPráce.cz. Specializujeme se na prodej inzertních služeb v oblasti personalistiky. Na trhu nejsme žádní nováčci, zkušenosti s inzerováním pracovních nabídek sbíráme již od roku 2

www.jenprace.cz
13 years old

Škrétova 490/12 , Praha

12000, Praha, Praha

CZ

Location detected: 🇨🇿 Czech Republic, Prahavia schema
REG-WEDOS📧 Google Workspacecs

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Last analyzed: 21 May 2026 at 09:28

Historical Analysis & Change Tracking