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or.cz

https://or.cz· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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or.cz
Desktop screenshot of or.cz
Mobile screenshot of or.cz
Mobile

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Hosting Provider

ZONER software, a.s.

IP Address

217.198.121.29

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS34222

Organization

ZONER software, a.s.

Server

Apache

Nameservers

pasky.or.cz.sinux.sinus.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
246 ms10%
Speed Index
320 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 KB
1 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
ZONER software, a.s.

Technology Stack

1 Technologies Detected

Web Servers

1
Apachev2.4.62

SEO Analysis

F28/100
8
9
3
Meta Tags4/15
Content2/12
Headings6/8
Technical4/21
E-E-A-T0/7
Images0/7
Links0/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
O
or.czor.cz

403 Forbidden

No description available for this page.

Title Length13 chars

Recommended: 50-60 chars (~78px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (18 words). Search engines need substantial content for ranking.
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Local SEO

Local Search Readiness

5/100
Poor
1 14 2

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

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AI & LLM Readiness

F27/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
0/25

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:40%
Words:16
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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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
71/100
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
11/20
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
1/15
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.
50/100
A+
<0.001 g
CO₂e / view
571 B
Page Weight
95%
Cleaner Than
New Visitor
<0.001 g
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
12 g
Emission Segments
Resource Breakdown
HTML
571 B
Green Hosting Not Verified
ZONER software, a.s.
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

53d

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/1.1

Valid From

20.03.2026

Valid Until

18.06.2026

Subject Alternative Names (20)

ambon.or.czbaudis.or.czbible.or.czdownload.pravoslavi.czeparchie-ob.eueparchie.czhlas.pravoslavi.czikonograf.pravoslavi.cz+12 more

SHA-256 Fingerprint

9A:68:A3:60:0B:A5:40:8C:F3:90:51:32:66:B0:D8:A9:50:D7:BA:BF...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection
Keep-Alive
content-length
271
content-type
text/html; charset=iso-8859-1
date
Sat, 25 Apr 2026 21:21:17 GMT
keep-alive
timeout=5, max=100
server
Apache/2.4.62 (Debian)
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

engine.or.cz

Domain Information

or.cz

Domain Age
25y 4m

Created

14.12.2000

Expires

16.12.2026

Last Updated

06.02.2019

Registrar

REG-WEBGLOBE

DNSSEC
Not Enabled

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.
F
32/100
Not Mobile Friendly
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG AAA
79/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
24/25

21:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

21:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
32px
h1
16px
p

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 21.0:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

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

Buy on MyFonts

Color Palette

6 unique colors
5.4:1 AA Light
#ffffff
Background· 98.69999999999996%
#6b6a69
Other· 0.2%

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Website Identity

or.cz

25 years old

Apache/2.4.62 (Debian) Server at or.cz Port 443

Location detected: 🇨🇿 Czech Republicvia tld
REG-WEBGLOBE

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Last analyzed: 25 Apr 2026 at 21:21

Historical Analysis & Change Tracking