drbna.cz

https://drbna.cz· First analyzed 09 May 2026· Updated 09 May 2026

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drbna.cz

Mobile

Sponsored

Hosting Provider

Web4U s.r.o.

IP Address

81.91.91.39

Site Location

🇨🇿 České Budějovice, Czech Republicvia schema_nap

Server Location

🇨🇿 Prague, Czechia

ASN

AS39790

Server

Nginx

Nameservers

ns.forpsi.it.ns.forpsi.net.ns.forpsi.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.1 s10%

Speed Index

2.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

65 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Web4U s.r.o.

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

UI Components

CSS Frameworks

Tag Managers

Advertising

Web Servers

SEO Analysis

B71/100

Meta Tags9/15

Content9/12

Headings3/8

Technical21/25

E-E-A-T5/7

Images5/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile4/4

Indexability3/3

drbna.czdrbna.cz

Drbna.cz

Drbna tvoří autentické regionální zpravodajství a přinášíme místní příběhy a odpovědi na otázky pro všechny, kteří se zajímají o dění kolem sebe.

Title Length8 chars

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

Description Length145 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

16,452 URLs

robots.txt

25 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100

Needs Work

6 14

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AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

3/25

Citation

14/25

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

Text ratio:4%

Words:977

Token eff.:Optimal

Sections/1K:35.8

Structured Data

1 JSON-LD

Organization×1.1

sameAs entity links

Citation Readiness

Opening Summary35w

Descriptive Headingsavg 8.2w

Canonical URL

Open Graph1/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

14/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

8/15

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

4/15

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

270 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

308 mg

Returning (cached)

154 mg

Annual (10K/mo)

32.4 kg

Emission Segments

Data Center

60 mg

Network

65 mg

Device

145 mg

Resource Breakdown

JavaScript

377.9 KB

Images

1.5 MB

CSS

272.4 KB

HTML

29.1 KB

Other

2.5 KB

Green Hosting Not Verified

Web4U s.r.o.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

176d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.10.2025

Valid Until

01.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.drbna.czdrbna.cz

SHA-256 Fingerprint

2E:BF:32:D1:5E:42:9B:21:06:56:EB:A8:BE:18:AA:C2:50:4A:E8:60...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

29542

content-type

text/html; charset=utf-8

date

Sat, 09 May 2026 13:39:20 GMT

expires

Sat, 09 May 2026 13:39:20 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mta.vshosting.eu

mta.vshosting.cloud

Domain Information

drbna.cz

Domain Age

19y 10m

Created

14.07.2006

Expires

13.07.2026

Last Updated

10.07.2017

Registrar

REG-INTERNET-CZ

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

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.

71/100

Mobile Friendly2 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, maximum-scale=1, shrink-to-fit=no

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto + Arial

WCAG Partial

59/100

Readability

/30

18/30

13px · LH 1.50

Hierarchy

/20

10/20

0.08x ratio · ✓ H1→H6

WCAG

/25

17/25

3.06:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Roboto

Sans1px

Body Font

Arial

Sans13px

Contrast Ratio

3.06:1

1 issue

Reading Comfort

~48 CPL

Optimal (45–75)

1px

26px

18px

13px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.1:1).

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

Fluid TypeFlesch 34

Color Palette

7 unique colors

2.73:1 Fail Light

#ffffff

Primary· 76.80000000000001%

#999da0

Other· 4.3%

#e00000

Primary· 6.7%

#b52e38

Accent· 0.8%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)a-scripts.prod.iprima.cz(2)delivery.r2b2.cz(2)scripts.clarity.ms(1)gstatic.com(1)

Website Identity

Drbna.cz

Organization

www.drbna.cz/

19 years old

L. B. Schneidera 3, České Budějovice

370 01, České Budějovice

Location detected: 🇨🇿 Czech Republic, České Budějovicevia schema_nap

REG-INTERNET-CZcs

Social Profiles

Facebook Instagram

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Last analyzed: 09 May 2026 at 13:39

Historical Analysis & Change Tracking