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42 postaonline.cz Last Updated: 10 months

Success 62% of passed verification steps
Warning 15% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 50%
Best Practices Desktop Score 92%
SEO Desktop Score 91%
Progressive Web App Desktop Score 19%
Performance Mobile Score 5%
Best Practices Mobile Score 85%
SEO Mobile Score 69%
Progressive Web App Mobile Score 19%
Page Authority Authority 42%
Domain Authority Domain Authority 85%
Moz Rank 4.2/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 31 Characters
POŠTAONLINE - ČESKÁ POŠTA, S.P.
Meta Description 95 Characters
Webové stránky PoštaOnline nabízí online služby České pošty, včetně užitečných online nástrojů.
Effective URL 32 Characters
https://www.postaonline.cz/index
Excerpt Page content
PoštaOnline - Česká pošta, s.p. Přihlásit Registrovat EN Oblíbené nástroje Sledování zásilek Vyhledávání poboček Vyhledávání PSČ Kalkulátor poštovného Pohl...
Keywords Cloud Density
online4 podání3 prodej3 zboží3 doručení3 informace2 služby2 balíku2 kontakty2 změna2
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
online 4
podání 3
prodej 3
zboží 3
doručení 3
informace 2
služby 2
balíku 2
kontakty 2
změna 2
Google Preview Your look like this in google search result
POŠTAONLINE - ČESKÁ POŠTA, S.P.
https://www.postaonline.cz/index
Webové stránky PoštaOnline nabízí online služby České pošty, včetně užitečných online nástrojů.
Robots.txt File Detected
Sitemap.xml File Detected
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 1970-01-01 / 51 years
Create on: 1970-01-01 / 51 years
Expires on: 1970-01-01 / 620 months 1 days

REG-ACTIVE24 REG-ACTIVE24 REG-ACTIVE24 REG-ACTIVE24 REG-ACTIVE24 ,
Registrar Address: Politických vězňů 909/4 Praha 1 22599 ČR CZ Politickych veznu 909/4 Praha 1 22599 CZ ,

Jindřich Kolář Václav Beníšek

Nameservers
dns1.cpost.cz
(193.150.24.97)
dns2.cpost.cz
(193.150.25.97)
Page Size Code & Text Ratio
Document Size: ~24.03 KB
Code Size: ~15.76 KB
Text Size: ~8.27 KB Ratio: 34.41%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Serve images in next-gen formats Potential savings of 1,468 KB
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
Reduce server response times (TTFB) Root document took 700 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 2,470 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 597 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 1,213 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
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
Speed Index 3.4 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.6 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 3,422 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 2.4 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 6 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 30 chains found
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
Avoids an excessive DOM size 312 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)
Preload key requests Potential savings of 380 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Minify JavaScript Potential savings of 11 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 2.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 50 requests • 3,422 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 3 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 60 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.7 s
Time to interactive is the amount of time it takes for the page to become fully interactive
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
Page load is not fast enough on mobile networks Interactive on simulated mobile network at 17.7 s
A fast page load over a cellular network ensures a good mobile user experience
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
Remove unused CSS Potential savings of 495 KB
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

Mobile

Mobile Screenshot
Minify JavaScript Potential savings of 11 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 11.5 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 51 requests • 2,656 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 3 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 360 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 16.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive
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
Page load is not fast enough on mobile networks Interactive at 16.8 s
A fast page load over a cellular network ensures a good mobile user experience
First Contentful Paint (3G) 22114 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Estimated Input Latency 130 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
Remove unused CSS Potential savings of 495 KB
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
Serve images in next-gen formats Potential savings of 785 KB
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
Server response times are low (TTFB) Root document took 170 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 10,130 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 597 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 1,214 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Total Blocking Time 570 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.8 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
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
Defer offscreen images Potential savings of 941 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 11.3 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 11.9 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoids enormous network payloads Total size was 2,656 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 2.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 10.6 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 6 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 30 chains found
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
Avoids an excessive DOM size 312 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)
Preload key requests Potential savings of 3,690 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1
Set-Cookie: JSESSIONID=16552E8A2888EBB2F083801A291AEA0A.jvm3; Path=/; Secure; HttpOnly
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: private, no-cache, no-store, must-revalidate
Pragma: no-cache
Set-Cookie: COOKIE_SUPPORT=true; Expires=Tue, 26-Jan-2021 10:15:07 GMT; Path=/; Secure; HttpOnly
Set-Cookie: GUEST_LANGUAGE_ID=cs_CZ; Expires=Tue, 26-Jan-2021 10:15:07 GMT; Path=/; Secure; HttpOnly
Content-Type: text/html;charset=UTF-8
Content-Length: 0
Date: Mon, 27 Jan 2020 10:15:07 GMT
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=94608000; includeSubDomains
Set-Cookie: f5avrbbbbbbbbbbbbbbbb=PKBMIBPFHJGNMMHNHABDCLLLMCENMFKEHNPDDKIGMCJCBJLOBHNBNJOOOEGPCFIIFCPDJLMGAHAIHFCPJMBACIIKOLMIAMBKPABGANOCDIFJLLDCFJMMBHANKELNNBFI; HttpOnly; secure
Set-Cookie: TS01001f20=0109e99bad1146a8d07ffb154c5f6d05369e1bb3a3291d067d4a4e22283da2ed232f0630c23cf485dba14c256065cd606943f8b548; Path=/
DNS Records DNS Resource Records associated with a hostname
View DNS Records

Comments

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