Chalda.Cz - Info chalda.cz

chalda.cz receives about 136 unique visitors and 136 (1.00 per visitor) page views per day which should earn about $0.56/day from advertising revenue. Estimated site value is $405.32. According to Alexa Traffic Rank chalda.cz is ranked number 6,908,533 in the world and 3.0E-6% of global Internet users visit it. Site is hosted in United States and links to network IP address 192.30.252.154. This server doesn't support HTTPS and doesn't support HTTP/2.

About - chalda.cz


Technologies used on Website

CDN
GitHub Pages
Web Frameworks
Ruby on Rails

chalda.cz Profile

Last update was 39 days ago
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*HypeStat.com is not linking to, promoting or affiliated with chalda.cz in any way. Only publicly available statistics data are displayed.

How popular is chalda.cz?

136 daily visitors
Is this your site?
Verify your site's metrics.
Daily Unique Visitors:
136
Monthly Unique Visitors:
3,264
Pages per Visit:
1.00
Daily Pageviews:
136
Alexa Rank:
6,908,533 visit alexa
Alexa Reach:
3.0E-6%   (of global internet users)
Avg. visit duration:
n/a
Bounce rate:
n/a
*All traffic values are estimates only.

Alexa Traffic Ranks
Search Traffic

Visitors by country

Currently Not Available

Where do visitors go on this site?

Currently Not Available

Competitive Data

SEMrush
Domain:
  chalda.cz
Rank:
(Rank based on keywords, cost and organic traffic)
  n/a
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  0
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
Adwords Keywords:
(Keywords a website is buying in Google AdWords for ads that appear in paid search results)
  0
Adwords Traffic:
(Number of visitors brought to the website via paid search results)
  0
Adwords Cost:
(Estimated budget spent for buying keywords in Google AdWords for ads that appear in paid search results - monthly estimation)
  $0.00

+ Moz Data

Domain Authority:
  n/a
Page Authority:
  n/a
MozRank:
  n/a

+ How socially engaged is chalda.cz?

Facebook:
  0
Google +:
  0
Linkedin:
  0
Stumbles:
  0
Buffer:
  0
Pins:
  0

+ Ad Experience Report

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

Desktop summary

Root domain:
chalda.cz
Region:
(The Ad Standard region to which this site has been assigned.)
Pending
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


Mobile summary

Region:
(The Ad Standard region to which this site has been assigned.)
Pending
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

Root domain:
chalda.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

+ How much chalda.cz can earn?

Daily Revenue:
$0.56
Monthly Revenue:
$16.80
Yearly Revenue:
$204.40
*All earnings values are estimates only.

Daily earning by country

Currently Not Available

How much money do chalda.cz lose due to Adblock?

Daily Revenue Loss:
n/a
Monthly Revenue Loss:
n/a
Yearly Revenue Loss:
n/a
Daily Pageviews Blocked:
n/a
Monthly Pageviews Blocked:
n/a
Yearly Pageviews Blocked:
n/a
*All earnings values are estimates only.

Daily revenue loss by country

Currently Not Available

How much is chalda.cz worth?

Website Value:
$405.32

+ Where is chalda.cz hosted?

Server IP:
192.30.252.154
ASN:
AS36459 
ISP:
GitHub, Inc. 
Server Location:

United States, US
 

Other sites hosted on 192.30.252.154

+ How fast does chalda.cz load?

Average Load Time:
n/a ms n/a % of sites are slower

Page Speed (Google PageSpeed Insights) - Desktop

100
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.

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.

Lab Data

Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. Learn more.
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Speed Index 0.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First CPU Idle 0.2 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. Learn more.
First Contentful Paint 0.2 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Performance budget
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more.
First Meaningful Paint 0.2 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more.
Max Potential First Input Delay 20 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task. Learn more.
Time to Interactive 0.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Minimize third-party usage
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn more.

Screenshot Thumbnails

This is what the load of your site looked like.

Avoids enormous network payloads - Total size was 1 KB
Large network payloads cost users real money and are highly correlated with long load times. Learn more.

URL
Size
http://chalda.cz/
1 KB
Minimizes main-thread work - 0.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.

Category
Time Spent
Other
9 ms
Style & Layout
4 ms
Script Evaluation
2 ms
Rendering
1 ms
Script Parsing & Compilation
1 ms
Parse HTML & CSS
1 ms
Avoids an excessive DOM size - 22 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). Learn more.

Statistic
ElementValue
Total DOM Elements
22
Maximum DOM Depth
4
Maximum Child Elements
8
Keep request counts low and transfer sizes small - 1 request • 1 KB
To set budgets for the quantity and size of page resources, add a budget.json file. Learn more.

Resource Type
RequestsTransfer Size
Document
11 KB
Total
11 KB
Stylesheet
00 KB
Image
00 KB
Media
00 KB
Font
00 KB
Script
00 KB
Other
00 KB
Third-party
00 KB
Network Requests
Lists the network requests that were made during page load.

URL
Start TimeEnd TimeTransfer SizeResource SizeStatus CodeMIME TypeResource Type
http://chalda.cz/
0 ms247 ms1 KB1 KB200text/htmlDocument
Tasks
Lists the toplevel main thread tasks that executed during page load.

Start Time
End Time
272 ms
7 ms
281 ms
6 ms
All text remains visible during webfont loads
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more.

Preconnect to required origins
Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. Learn more.

Minify CSS
Minifying CSS files can reduce network payload sizes. Learn more.

JavaScript execution time
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.

Defer offscreen images
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn more.

Server Backend Latencies - 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. Learn more.

Properly size images
Serve images that are appropriately-sized to save cellular data and improve load time. Learn more.

Remove unused CSS
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. Learn more.

Serve images in next-gen formats
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more.

Avoid chaining critical requests
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn more.

Preload key requests
Consider using `` to prioritize fetching resources that are currently requested later in page load. Learn more.

Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn more.

Avoid multiple page redirects
Redirects introduce additional delays before the page can be loaded. Learn more.

User Timing marks and measures
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more.

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more.

Server response times are low (TTFB) - Root document took 250 ms
Time To First Byte identifies the time at which your server sends a response. Learn more.

Eliminate render-blocking resources
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn more.

Efficiently encode images
Optimized images load faster and consume less cellular data. Learn more.

Enable text compression
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more.

Uses efficient cache policy on static assets - 0 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more.

Network Round Trip Times - 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. Learn more.


Page Speed (Google PageSpeed Insights) - Mobile

100
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.

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.

Lab Data

Max Potential First Input Delay 20 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task. Learn more.
Time to Interactive 0.6 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Minimize third-party usage
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn more.
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. Learn more.
First Contentful Paint (3G) 1230 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network. Learn more.
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Speed Index 0.6 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First CPU Idle 0.6 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. Learn more.
First Contentful Paint 0.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Performance budget
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more.
First Meaningful Paint 0.6 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more.

Screenshot Thumbnails

This is what the load of your site looked like.

Network Requests
Lists the network requests that were made during page load.

URL
Start TimeEnd TimeTransfer SizeResource SizeStatus CodeMIME TypeResource Type
http://chalda.cz/
0 ms245 ms1 KB1 KB200text/htmlDocument
Tasks
Lists the toplevel main thread tasks that executed during page load.

Start Time
End Time
264 ms
6 ms
271 ms
6 ms
JavaScript execution time - 0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.

URL
Total CPU TimeScript EvaluationScript Parse
Other
63 ms7 ms3 ms
Avoids enormous network payloads - Total size was 1 KB
Large network payloads cost users real money and are highly correlated with long load times. Learn more.

URL
Size
http://chalda.cz/
1 KB
Minimizes main-thread work - 0.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.

Category
Time Spent
Other
29 ms
Style & Layout
16 ms
Script Evaluation
7 ms
Rendering
5 ms
Script Parsing & Compilation
3 ms
Parse HTML & CSS
2 ms
Garbage Collection
1 ms
Avoids an excessive DOM size - 22 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). Learn more.

Statistic
ElementValue
Total DOM Elements
22
Maximum DOM Depth
4
Maximum Child Elements
8
Keep request counts low and transfer sizes small - 1 request • 1 KB
To set budgets for the quantity and size of page resources, add a budget.json file. Learn more.

Resource Type
RequestsTransfer Size
Document
11 KB
Total
11 KB
Stylesheet
00 KB
Image
00 KB
Media
00 KB
Font
00 KB
Script
00 KB
Other
00 KB
Third-party
00 KB
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more.

Server response times are low (TTFB) - Root document took 250 ms
Time To First Byte identifies the time at which your server sends a response. Learn more.

Eliminate render-blocking resources
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn more.

Efficiently encode images
Optimized images load faster and consume less cellular data. Learn more.

Enable text compression
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more.

Uses efficient cache policy on static assets - 0 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more.

Network Round Trip Times - 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. Learn more.

All text remains visible during webfont loads
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more.

Preconnect to required origins
Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. Learn more.

Minify CSS
Minifying CSS files can reduce network payload sizes. Learn more.

Server Backend Latencies - 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. Learn more.

Defer offscreen images
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn more.

Properly size images
Serve images that are appropriately-sized to save cellular data and improve load time. Learn more.

Remove unused CSS
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. Learn more.

Serve images in next-gen formats
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more.

Avoid chaining critical requests
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn more.

Preload key requests
Consider using `` to prioritize fetching resources that are currently requested later in page load. Learn more.

Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn more.

Avoid multiple page redirects
Redirects introduce additional delays before the page can be loaded. Learn more.

User Timing marks and measures
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more.

Page Speed (Google PageSpeed Insights) - v2

Suggestions Summary

Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

Blog chalda.cz renders only 6 pixels tall (16 CSS pixels) .
Presentations renders only 7 pixels tall (19 CSS pixels) .
Consistency in…tup, Sep 2019) and 8 others render only 6 pixels tall (16 CSS pixels) .
( and 1 others render only 6 pixels tall (16 CSS pixels) .

Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="presentations/…ree-fimuni.pdf">Can&#39;t we just…UNI, Nov 2019)</a> and 8 others are close to other tap targets .

Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

Configure a viewport for this page.
Avoid landing page redirects
Your page has no redirects. Learn more about avoiding landing page redirects.
Avoid plugins
Your page does not appear to use plugins, which would prevent content from being usable on many platforms. Learn more about the importance of avoiding plugins.
Enable compression
You have compression enabled. Learn more about enabling compression.
Leverage browser caching
You have enabled browser caching. Learn more about browser caching recommendations.
Reduce server response time
Your server responded quickly. Learn more about server response time optimization.
Minify CSS
Your CSS is minified. Learn more about minifying CSS.
Minify HTML
Your HTML is minified. Learn more about minifying HTML.
Minify JavaScript
Your JavaScript content is minified. Learn more about minifying JavaScript.
Eliminate render-blocking JavaScript and CSS in above-the-fold content
You have no render-blocking resources. Learn more about removing render-blocking resources.
Optimize images
Your images are optimized. Learn more about optimizing images.
Prioritize visible content
You have the above-the-fold content properly prioritized. Learn more about prioritizing visible content.
Size content to viewport
The contents of your page fit within the viewport. Learn more about sizing content to the viewport.
Download optimized image, JavaScript, and CSS resources for this page.

+ Does chalda.cz use compression?

chalda.cz use gzip compression.
Original size: 993 B
Compressed size: 417 B
File reduced by: 576 B (58%)

+ Google Safe Browsing

This site is not currently listed as suspicious

MyWot.com Reputation Ratings

Trustworthiness:
  n/a
Vendor reliability:
  n/a
Privacy:
  n/a
Child safety:
  n/a

+ SSL Checker - SSL Certificate Verify

chalda.cz does not support HTTPS
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Verifying SSL Support. Please wait...

+ Verify HTTP/2 Support

chalda.cz does not support HTTP/2
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Verifying HTTP/2.0 Support. Please wait...

+ Site Categories (dmoz)

Currently Not Available

+ Http Header

Server: GitHub.com
Date: Wed, 08 Jan 2020 08:31:05 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Last-Modified: Thu, 14 Nov 2019 11:28:37 GMT
Vary: Accept-Encoding
ETag: W/"5dcd3a65-3e1"
Access-Control-Allow-Origin: *
Expires: Wed, 08 Jan 2020 08:41:05 GMT
Cache-Control: max-age=600
Content-Encoding: gzip
X-Proxy-Cache: MISS
X-GitHub-Request-Id: EB79:6377:3DE73:5074C:5E159349

+ DNS Lookup

Type Ip Target TTL
TXT 3600
MX mxb.mailgun.org 3600
MX mxa.mailgun.org 3600
SOA 3600
Mname ns1.ignum.com
Rname hostmaster.ignum.cz
Serial Number 2019110200
Refresh 10800
Retry 3600
Expire 604800
Minimum TTL 0
A 192.30.252.154 3586
A 192.30.252.153 3586
NS ns1.ignum.com 3586
NS ns2.ignum.com 3586

+ Whois Lookup

Domain Created:
0000-00-00
Domain Age:
 
WhoIs:
 

whois lookup at whois.nic.cz...
% (c) 2006-2019 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: 3.12.0
% Timestamp: Wed Jan 08 09:31:16 2020

domain: chalda.cz
registrant: IGN-C401***7-PKQ
nsset: IGNUM
keyset: IGNUM
registrar: REG-IGNUM
registered: 13.10.2016 02:54:11
changed: 05.02.2017 21:45:01
expire: 13.10.2022

contact: IGN-C401***7-PKQ
name: Ondřej Chaloupka
address: Záhumenice 17
address: Brno
address: 61900
address: CZ
registrar: REG-IGNUM
created: 11.10.2016 21:04:01

nsset: IGNUM
nserver: ns1.ignum.com
nserver: ns2.ignum.cz (217.31.48.201, 2001:1ab0:7e1e:2::5)
tech-c: IGNUM-DOMENY
registrar: REG-IGNUM
created: 04.10.2007 15:19:01
changed: 13.12.2012 16:18:08

contact: IGNUM-DOMENY
org: IGNUM, s. r. o.
name: Lucie Vojtíková
address: Vinohradská 190
address: Praha 3
address: 130 61
address: CZ
e-mail: email
registrar: REG-IGNUM
created: 13.12.2012 10:40:09
changed: 06.06.2018 08:32:00

keyset: IGNUM
dnskey: 257 3 13 vbv/f+97qix5SwiL2MWMCP+DeDJOepR1S7L/JwnP6D29BRe7L3NS95ZAmLOF/F+mxJA88zBP2dyj6lfciwgsJQ==
tech-c: IGNUM
registrar: REG-IGNUM
created: 22.12.2011 12:52:38
changed: 04.05.2019 15:54:01

contact: IGNUM
org: IGNUM, s.r.o.
name: Lucie Vojtíková
address: Vinohradská 190
address: Praha 3
address: 130 61
address: CZ
registrar: REG-IGNUM
created: 17.03.2008 14:43:09
changed: 15.05.2018 21:32:00
Last update was 39 days ago
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