vira.cz

https://vira.cz· First analyzed 31 May 2026· Updated 31 May 2026

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vira.cz

Mobile

Sponsored

Hosting Provider

Nethost s.r.o.

IP Address

81.0.235.72

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS15685

Organization

Nethost s.r.o.

Nameservers

bodie.netservis.cz.doyle.netservis.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1 MB

39 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Nethost s.r.o.

Technology Stack

8 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

SEO Analysis

C64/100

Meta Tags10/15

Content12/12

Headings3/8

Technical16/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social1/5

Freshness0/4

Mobile4/4

Indexability3/3

vira.czvira.cz

VIRA.CZ - víra, Bůh, křesťanství

Člověk a víra - informační zdroj o křesťanské víře a životě z víry. Křesťanská víra není soubor pouček a nařízení, ale osobní vztah důvěry. Bůh důvěřuje nám ...

Description truncated.

Title Length32 chars

Recommended: 50-60 chars (~189px / 580px)

Description Length222 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

11,263 URLs

robots.txt

3 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.

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

12/25

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:15%

Words:818

Token eff.:Optimal

Sections/1K:29.3

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 6.1w

Canonical URL

Open Graph1/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

52/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

7/20

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

5/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

0/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

5 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.

40/100

130 mg

CO₂e / view

1.0 MB

Page Weight

70%

Cleaner Than

New Visitor

148 mg

Returning (cached)

74 mg

Annual (10K/mo)

15.6 kg

Emission Segments

Data Center

29 mg

Network

31 mg

Device

70 mg

Resource Breakdown

JavaScript

112.3 KB

Images

820.2 KB

CSS

102.9 KB

Fonts

2.3 KB

HTML

9.9 KB

Green Hosting Not Verified

Nethost s.r.o.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

69d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (3)

admin.vira.czvira.czwww.vira.cz

SHA-256 Fingerprint

33:4E:CE:73:38:49:76:CE:2D:55:13:AF:AD:70:49:4A:37:B0:B3:DB...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sun, 31 May 2026 14:20:41 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

ms.netservis.cz

ap.vira.cz

Domain Information

vira.cz

Domain Age

28y 1m

Created

27.04.1998

Expires

10.10.2032

Last Updated

04.06.2013

Registrar

REG-MEDIA4WEB

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

64/100

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=1.0, user-scalable=yes

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Noto Serif + Open Sans

WCAG Partial

51/100

Readability

/30

11/30

13px · LH 1.65

Hierarchy

/20

8/20

WCAG

/25

17/25

2.65:1 min contrast

Performance

/25

15/25

2 fonts · 2 req

Heading Font

Noto Serif

Serif

Body Font

Open Sans

Sans13px

Contrast Ratio

2.65:1

16 issues

Reading Comfort

~113 CPL

Too wide

22px

42px

24px

13px

Major Third

Scale

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

❌ Very long lines: ~113 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 2.6:1).

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

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

GGoogle Fonts Buy on MyFontsFlesch 59

Color Palette

8 unique colors

3.89:1 AA Large Light

#ffffff

Background· 40.39999999999999%

#748487

Secondary· 4.5%

#d5edf9

Primary· 25.699999999999996%

#406e89

Secondary· 7.4%

#809ea6

Secondary· 1.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)statistiky.vira.cz(1)kookiecheck.cz(1)vira.cz(1)

Website Identity

vira.cz

28 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-MEDIA4WEBcs

Social Profiles

Facebook X (Twitter)

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Last analyzed: 31 May 2026 at 14:21

Historical Analysis & Change Tracking