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Top Technologies

Google Font API
Font Scripts
Apache
Web Servers
Nginx
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Font Awesome
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CloudFlare
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Google Tag Manager
Tag Managers
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Web Frameworks

43 zszehusice.cz Last Updated: 1 month

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

Desktop

Mobile

Performance Desktop Score 90%
Best Practices Desktop Score 87%
SEO Desktop Score 91%
Progressive Web App Desktop Score 18%
Performance Mobile Score 62%
Best Practices Mobile Score 87%
SEO Mobile Score 92%
Progressive Web App Mobile Score 25%
Page Authority Authority 16%
Domain Authority Domain Authority 26%
Moz Rank 1.6/10
Bounce Rate Rate 0%
Title Tag 49 Characters
ZÁKLADNÍ ŠKOLA JANA VÁCLAVA STICHA-PUNTA ŽEHUŠICE
Meta Description 0 Characters
NO DATA
Effective URL 24 Characters
http://www.zszehusice.cz
Excerpt Page content
Základní škola Jana Václava Sticha-Punta Žehušice Menu Základní škola Jana Václava Sticha-Punta Žehušice ŠKOLA S ÚSMĚVEM ...
Keywords Cloud Density
fotogalerie13 školní9 provoz7 domácnosti7 image6 škola5 olympiáda4 základní4 podzimní4 třídy4
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
fotogalerie 13
školní 9
provoz 7
domácnosti 7
image 6
škola 5
olympiáda 4
základní 4
podzimní 4
třídy 4
Google Preview Your look like this in google search result
ZÁKLADNÍ ŠKOLA JANA VÁCLAVA STICHA-PUNTA ŽEHUŠICE
http://www.zszehusice.cz
Základní škola Jana Václava Sticha-Punta Žehušice Menu Základní škola Jana Václava Sticha-Punta Žehušice ŠKOLA S ÚSMĚVEM ...
Robots.txt File Detected
Sitemap.xml File Detected
Page Size Code & Text Ratio
Document Size: ~26.12 KB
Code Size: ~25.83 KB
Text Size: ~295 B Ratio: 1.10%

Social Data

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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
Keep request counts low and transfer sizes small 42 requests • 2,246 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Avoid chaining critical requests 14 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
Efficiently encode images Potential savings of 434 KiB
Optimized images load faster and consume less cellular data
First Contentful Paint 1.0 s
First Contentful Paint marks the time at which the first text or image is painted
Reduce unused CSS Potential savings of 63 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Minimizes main-thread work 0.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Eliminate render-blocking resources Potential savings of 970 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Reduce unused JavaScript Potential savings of 296 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Serve images in next-gen formats Potential savings of 1,112 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
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
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
Minimize third-party usage Third-party code blocked the main thread for 0 ms
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
Properly size images Potential savings of 1,280 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Does not use HTTPS 38 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding [mixed content](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content), where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Largest Contentful Paint 1.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoids an excessive DOM size 479 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)
Initial server response time was short Root document took 200 ms
Keep the server response time for the main document short because all other requests depend on it
Speed Index 1.0 s
Speed Index shows how quickly the contents of a page are visibly populated
First Meaningful Paint 1.0 s
First Meaningful Paint measures when the primary content of a page is visible
Avoids enormous network payloads Total size was 2,246 KiB
Large network payloads cost users real money and are highly correlated with long load times
JavaScript execution time 0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Serve static assets with an efficient cache policy 9 resources found
A long cache lifetime can speed up repeat visits to your page
Cumulative Layout Shift 0.013
Cumulative Layout Shift measures the movement of visible elements within the viewport
Time to Interactive 1.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Max Potential First Input Delay 50 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Minify CSS Potential savings of 9 KiB
Minifying CSS files can reduce network payload sizes
Web app manifest or service worker do not meet the installability requirements 1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
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

Mobile

Mobile Screenshot
Serve static assets with an efficient cache policy 9 resources found
A long cache lifetime can speed up repeat visits to your page
Initial server response time was short Root document took 250 ms
Keep the server response time for the main document short because all other requests depend on it
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
Efficiently encode images Potential savings of 382 KiB
Optimized images load faster and consume less cellular data
Total Blocking Time 120 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
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
Properly size images Potential savings of 793 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Time to Interactive 6.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Avoid long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
JavaScript execution time 0.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Reduce unused JavaScript Potential savings of 296 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Minify CSS Potential savings of 9 KiB
Minifying CSS files can reduce network payload sizes
Speed Index 4.1 s
Speed Index shows how quickly the contents of a page are visibly populated
Max Potential First Input Delay 170 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Avoids an excessive DOM size 484 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)
Document uses legible font sizes 88.57% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
Avoids enormous network payloads Total size was 2,121 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Contentful Paint (3G) 8629 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Does not use HTTPS 30 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding [mixed content](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content), where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Serve images in next-gen formats Potential savings of 1,056 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
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
Cumulative Layout Shift 0.066
Cumulative Layout Shift measures the movement of visible elements within the viewport
Avoid chaining critical requests 14 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
Tap targets are sized appropriately 100% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Eliminate render-blocking resources Potential savings of 3,960 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Minimize third-party usage Third-party code blocked the main thread for 10 ms
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
Keep request counts low and transfer sizes small 34 requests • 2,121 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Web app manifest or service worker do not meet the installability requirements 1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement
Minimizes main-thread work 1.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Largest Contentful Paint 7.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted
First Meaningful Paint 4.1 s
First Meaningful Paint measures when the primary content of a page is visible
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Reduce unused CSS Potential savings of 61 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
First Contentful Paint 4.1 s
First Contentful Paint marks the time at which the first text or image is painted

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Congratulations! Your title is optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Congratulations! We've found a sitemap file for your website
SSL Secure
Warning! Your website is not SSL secured (HTTPS).
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Congratulations! Your site not have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Congratulations! Your Domain Authority is good
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Warning! Your site not have a favicon
Broken Links
Congratulations! You not have broken links View links

Alexa Rank

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Domain Available

Domain (TDL) and Typo Status
zszehusice.co Available
zszehusice.us Available
zszehusice.com Available
zszehusice.org Available
zszehusice.net Available
zzehusice.cz Available
aszehusice.cz Available
wszehusice.cz Available

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Date: Sat, 23 Oct 2021 22:04:38 GMT
Server: Apache
X-Powered-By: Nette Framework
Set-Cookie: cookie_vsession=ab452534c5ce28c4fbb0e102d4a4fb2e; expires=Sat, 23-Oct-2021 22:34:38 GMT; Max-Age=1800; path=/; SameSite=Lax; HttpOnly
Strict-Transport-Security: max-age=15768000
Upgrade: h2,h2c
Connection: Upgrade
Accept-Ranges: bytes
Content-Type: text/html; charset=utf-8
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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