crk.cz Crk.cz

   
Úvodní strana | Český Radioklub

Domain Summary

What is the traffic rank for Crk.cz?

• Crk.cz ranks #4,877,944 globally on HypeStat.

What percent of global Internet users visit Crk.cz?

• 1.07E-5% of global Internet users visit Crk.cz

How many people visit Crk.cz each day?

• Crk.cz receives approximately 528 visitors and 403 page impressions per day.

Which countries does Crk.cz receive most of its visitors from?

• Crk.cz is mostly visited by people located in Czech Republic,Indonesia,Finland.

How much Crk.cz can earn?

• Crk.cz should earn about $0.84/day from advertising revenue.

What is Crk.cz estimated value?

• Estimated value of Crk.cz is $908.47.

What IP addresses does Crk.cz resolve to?

• Crk.cz resolves to the IP addresses 81.91.86.11.

Where are Crk.cz servers located in?

• Crk.cz has servers located in Czechia.

crk.cz Profile

Title:Úvodní strana | Český Radioklub
Category:Arts and Entertainment / Music
About: The crk.cz website is focused on genealogical research, specifically related to Czech and Slovak heritage. It offers a variety of resources and services to those interested in tracing their family history in the Czech Republic and Slovakia. The site includes access to historical records, such as birth, marriage, and death records, as well as census data and other important historical documents. Additionally, crk.cz provides tools for building family trees and offers guidance on how to conduct genealogical research. The website aims to support both amateur and professional genealogists in uncovering their ancestral roots.
*This text is generated by artificial intelligence and may not be accurate. Edit Site Info

What technologies does crk.cz use?

These are the technologies used at crk.cz. crk.cz has a total of 5 technologies installed in 5 different categories.
CMS
Drupal Drupal
JavaScript Libraries
jQuery jQuery
Web Servers
OpenResty OpenResty
Nginx Nginx
Programming Languages
PHP PHP
Reverse proxies
Nginx Nginx

crk.cz Traffic Analysis

Crk.cz is ranked #4,877,944 in the world. This website is viewed by an estimated 528 visitors daily, generating a total of 403 pageviews. This equates to about 16K monthly visitors. Crk.cz traffic has decreased by 79.01% compared to last month.
Daily Visitors528
79.07%
Monthly Visits16K
79.01%
Pages per Visit0.76
47.78%
Visit duration02:14
194.39%
Bounce Rate48.88%
20.18%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
528
Monthly Visits:
15,998
Pages per Visit:
0.76
Daily Pageviews:
403
Avg. visit duration:
02:14
Bounce rate:
48.88%
Global Reach:
1.07E-5%
Monthly Visits (SEMrush):
1,607
Monthly Unique Visitors (SEMrush):
1,227
Monthly Visits (SimilarWeb):
15,695
HypeRank:
4,877,944
SEMrush Rank:
16,041,063
SimilarWeb Rank:
4,424,900
*All traffic values are estimates only.

Traffic sources

Direct:
17.36%
Referral:
0%
Search:
82.64%
Social:
0%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
0%

Total Visits Last 3 Months

18.8K
MAR
76.2K
APR
16K
MAY

Visitors by country

Country
Users%
 
Czech Republic 30.79%
 
Indonesia 8.08%
 
Finland 7.23%
 
Philippines 6.52%
 
Germany 5.24%

Which sites are competitors to crk.cz?

Websites similar to crk.cz are sites similar on user interests and browsing behavior. Users can discover new websites that are similar to the ones they already enjoy or find useful.
Last update was 4 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with crk.cz in any way. Only publicly available statistics data are displayed.

  ▼

SEMrush is a complete on line advertising and marketing platform that gives a extensive variety of gear and functions to help companies and entrepreneurs in enhancing their on line visibility and optimizing their virtual advertising and marketing strategies.
SemRushSemRush
Domain:
  crk.cz
Rank:
(Rank based on keywords, cost and organic traffic)
  16,041,063
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  10
Organic Traffic:
(Number of visitors coming from top 20 search results)
  0
Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
  $0.00
Full SEMrush Report >>

Revenue report ▼

Google.com would generate approximately $0.8 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $25.2 and annual gross revenue of approximately $306.6. Based on these figures, the site's net worth is estimated at around $0.9K.

How much would crk.cz make?

Daily Revenue:
$0.84
Monthly Revenue:
$25.20
Yearly Revenue:
$306.60
*All earnings values are estimates only.

Daily earning by country

 
CountryPageviewsEarning
 
Czech Republic 124$0.06
 
Finland 29$0.05
 
Germany 21$0.03
 
Philippines 26$0.01
 
Indonesia 33$0.00

Loss of money due to Adblock?

Daily Revenue Loss:
$0.03
Monthly Revenue Loss:
$0.88
Yearly Revenue Loss:
$10.71
Daily Pageviews Blocked:
46
Monthly Pageviews Blocked:
1,379
Yearly Pageviews Blocked:
16,777

Daily revenue loss by country

 
CountryBlockedLost Money
 
Finland 7$0.01
 
Germany 6$0.01
 
Czech Republic 12$0.01
 
Indonesia 19$0.00
 
Philippines 2$0.00

How much is crk.cz worth?

Website Value:
$0.9K

Ad Experience Report ▼

Summary of the ad experience rating of a website for a specific platform.

Mobile summary

Root domain:
crk.cz
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Desktop summary

Root domain:
crk.cz
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Abusive Experience Report ▼

Summary of the abusive experience rating of a website.
Root domain:
crk.cz
Enforcement:
(Chrome is not preventing your site from opening new windows or tabs.)
Off
Status:
(The status of the site reviewed for the abusive experiences.)
Not reviewed

Where is crk.cz hosted? ▼

Crk.cz may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
81.91.86.11
ASN:
AS39790 
ISP:
Web4U s.r.o. 
Server Location:

Czechia, CZ
 

Other sites hosted on 81.91.86.11

How fast does crk.cz load? ▼

The average loading time of crk.cz is 1102 ms. The Desktop speed index is 84 and mobile speed index is 79.
Average Load Time:
1102 ms

Page Speed (Google PageSpeed Insights) - Desktop

84
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) First Contentful Paint (FCP) 0%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%

Origin Data

All pages served from this origin have an speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) First Contentful Paint (FCP) 0%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%

Lab Data

Largest Contentful Paint 1.1 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
First Meaningful Paint 0.8 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Speed Index 2.3 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`  
A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, but also prevents . a 300 millisecond delay to user input Learn more about using the viewport meta tag
First Contentful Paint 0.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Time to Interactive 0.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade

Page Speed (Google PageSpeed Insights) - Mobile

79
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) First Contentful Paint (FCP) 0%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%

Origin Data

All pages served from this origin have an speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) First Contentful Paint (FCP) 0%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%

Lab Data

Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
First Meaningful Paint 2.8 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`  
A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, but also prevents . a 300 millisecond delay to user input Learn more about using the viewport meta tag
Time to Interactive 2.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
Speed Index 4.5 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Largest Contentful Paint 4.1 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
First Contentful Paint 2.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade

Does crk.cz use compression? ▼

Website compression is the process of reducing the size of website files, such as HTML, CSS, JavaScript, and image files, to improve website performance and load times. Compressing website files can significantly reduce the amount of data that needs to be transferred from the server to the user's browser, resulting in faster page load times and improved user experience. Files on crk.cz are reduced by 60%.
crk.cz use gzip compression.
Original size: 9.15 KB
Compressed size: 3.63 KB
File reduced by: 5.52 KB (60%)

Google Safe Browsing ▼

Google Safe Browsing is a service provided by Google that helps protect users from visiting websites that may contain malicious or harmful content, such as malware, phishing attempts, or deceptive software.
This site is not currently listed as suspicious

MyWot.com Reputation Ratings

MyWOT (short for "My Web of Trust") is a web-based reputation and rating service that provides users with information about the trustworthiness and safety of websites.
Status:
  SAFE

SSL Checker - SSL Certificate Verify ▼

An SSL (Secure Sockets Layer) certificate is a digital certificate that establishes a secure encrypted connection between a web server and a user's web browser. It provides authentication and encryption, ensuring that data transmitted between the server and the browser remains private and protected. crk.cz supports HTTPS.
 crk.cz supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: crk.cz
Organization:
Location:
Issuer: R3
Valid from: Apr 27 19:23:30 2024 GMT
Valid until: Jul 26 19:23:29 2024 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: R3
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Sep 4 00:00:00 2020 GMT
Valid until: Sep 15 16:00:00 2025 GMT
Authority: CA:TRUE
Keysize: 2048 Bits

Verify HTTP/2 Support ▼

HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency.
 crk.cz supports HTTP/2
     
Verifying HTTP/2.0 Support. Please wait...

Http Header ▼

HTTP headers are extra portions of records despatched among a consumer (which include an internet browser) and a server at some stage in an HTTP request or response. They offer instructions, metadata, or manipulate parameters for the conversation among the consumer and server. 
server: openresty
date: Sun, 23 Jun 2024 08:38:03 GMT
content-type: text/html; charset=iso-8859-1
content-length: 313
location: https://www.crk.cz/
cache-control: max-age=1
expires: Sun, 23 Jun 2024 08:38:04 GMT
x-w4u-upstream: http://data28_php52

HTTP/2 302 
server: openresty
date: Sun, 23 Jun 2024 08:38:03 GMT
content-type: text/html
content-length: 0
location: /CZ
cache-control: max-age=1
expires: Sun, 23 Jun 2024 08:38:04 GMT
x-w4u-upstream: http://data28_php52

HTTP/2 200 
server: openresty
date: Sun, 23 Jun 2024 08:38:03 GMT
content-type: text/html; charset=utf-8
set-cookie: SESS45d06011966106eb9980101b7c32f532=4f53b131cae2c0480076154b95b71f30; expires=Tue, 16-Jul-2024 12:11:23 GMT; path=/; domain=.crk.cz
expires: Sun, 19 Nov 1978 05:00:00 GMT
last-modified: Sun, 23 Jun 2024 08:38:03 GMT
cache-control: store, no-cache, must-revalidate
cache-control: post-check=0, pre-check=0
x-w4u-upstream: http://data28_php52
content-encoding: gzip

DNS Lookup ▼

DNS entries (Domain Name System) are a critical component of the Internet infrastructure. They act as directories that translate human-readable domain names (such as example.com) to machine-readable IP addresses. DNS records are stored on DNS servers and help forward internet traffic efficiently.
Type Ip Target/Txt TTL
SOA 14341
Mname ns.web4u.cz
Rname admin.web4u.cz
Serial Number 2005050604
Refresh 10800
Retry 3600
Expire 1209600
Minimum TTL 14400
A 81.91.86.11 14340
NS ns.web4u.cz 3540
NS ns2.web4u.cz 3540

Whois Lookup ▼

Domain WHOIS is a public database that provides information about domain names, including registered owners, contact information, domain registrars, registration and expiration dates, name servers, and other relevant information. Domain registration for this website began on December 6, 2000 and will expire on December 8, 2024 if not renewed. This website is now assigned through the registrar Web4U s.r.o.. The WHOIS data for this website's domain was last updated on December 1, 2014.
Domain Created:
2000-12-06
Domain Expires:
2024-12-08
Domain Updated:
2014-12-01
Domain Age:
23 years 6 months 22 days
Domain Registrar:
Web4U s.r.o.
Domain Owner:
CESKY RADIOKLUB
WhoIs:
 

%  (c) 2006-2021 CZ.NIC, z.s.p.o.
% 
% Intended use of supplied data and information
% 
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
% 
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
% 
% See also a search service at http://www.nic.cz/whois/
% 
% 
% Whoisd Server Version: 3.15.0
% Timestamp: Sun Jun 23 08:38:58 2024

domain:       crk.cz
registrant:   CESKY-RADIOKLUB
admin-c:      GUN389-20001206P
nsset:        WEB4U
keyset:       WEB4U
registrar:    REG-WEB4U
registered:   06.12.2000 16:43:00
changed:      01.12.2014 08:27:01
expire:       08.12.2024

contact:      CESKY-RADIOKLUB
org:          CESKY RADIOKLUB
name:         CESKY RADIOKLUB
address:      U Pergamenky 3
address:      Praha 7
address:      17000
address:      CZ
registrar:    REG-MOJEID
created:      01.12.2014 08:22:21

contact:      GUN389-20001206P
org:          Český radioklub
name:         Josef Zabavík
address:      U Pergamenky 3
address:      Praha 7
address:      17000
address:      CZ
registrar:    REG-WEB4U
created:      10.08.2001 22:13:00
changed:      15.05.2018 21:32:00

nsset:        WEB4U
nserver:      ns2.web4u.cz (85.207.53.12, 2a02:a40:100:28ff::12)
nserver:      ns.web4u.cz (185.14.224.241, 2001:1568:fd::241)
tech-c:       WEB4U
registrar:    REG-WEB4U
created:      03.10.2007 14:53:59
changed:      24.04.2023 10:14:55

contact:      WEB4U
org:          Web4U s.r.o.
name:         František Princ
address:      Korunní 2569/108
address:      Vinohrady
address:      Praha 10
address:      10100
address:      CZ
registrar:    REG-WEB4U
created:      03.10.2007 14:48:14
changed:      24.04.2023 10:14:55

keyset:       WEB4U
dnskey:       257 3 14 n/2fsBmhKHkGDjP5cOlbmUPB5DfVSDzAean7RjBjf8DbGV7Nx5f5Ao2sec7u7NrO2iLiSfH7bmBYs9U8fqkPiHwnj2jBI97K4/EYwfGR7LIuiCovoXo7igqu61iBP5QX
tech-c:       WEB4U
registrar:    REG-WEB4U
created:      23.09.2009 14:06:52
changed:      25.07.2023 11:36:15