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34 dlanauczyciela.pl Last Updated: 5 months

Success 54% of passed verification steps
Warning 23% of total warning
Errors 23% of total errors, require fast action
Share

Desktop

Mobile

Performance Desktop Score 72%
Best Practices Desktop Score 77%
SEO Desktop Score 91%
Progressive Web App Desktop Score 58%
Performance Mobile Score 54%
Best Practices Mobile Score 77%
SEO Mobile Score 90%
Progressive Web App Mobile Score 59%
Page Authority Authority 32%
Domain Authority Domain Authority 29%
Moz Rank 3.2/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 62 Characters
DLANAUCZYCIELA.PL - MATERIAŁY DYDAKTYCZNE WYDAWNICTWA NOWA ERA
Meta Description 272 Characters
Dlanauczyciela.pl to portal wydawnictwa Nowa Era pełniący funkcję bazy i wyszukiwarki materiałów dydaktycznych ze wszystkich przedmiotów. Znajdziesz tu materiały ułatwiające organizację pracy w trakcie całego roku szkolnego, niezbędne do przygotowania i prowadzenia zajęć.
Effective URL 29 Characters
https://www.dlanauczyciela.pl
Excerpt Page content
Dlanauczyciela.pl - materiały dydaktyczne wydawnictwa Nowa Era ...
Keywords Cloud Density
język65 chemia40 matematyka40 biologia36 materiały35 angielski29 informatyka27 czasie26 historia26 geografia24
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
język 65
chemia 40
matematyka 40
biologia 36
materiały 35
angielski 29
informatyka 27
czasie 26
historia 26
geografia 24
Google Preview Your look like this in google search result
DLANAUCZYCIELA.PL - MATERIAŁY DYDAKTYCZNE WYDAWNICTWA NOWA E
https://www.dlanauczyciela.pl
Dlanauczyciela.pl to portal wydawnictwa Nowa Era pełniący funkcję bazy i wyszukiwarki materiałów dydaktycznych ze wszystkich przedmiotów. Znajdziesz t
Robots.txt File Detected
http://dlanauczyciela.pl/robots.txt
Sitemap.xml File No Found
http://dlanauczyciela.pl/sitemap.xml
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 / 617 months 21 days
Page Size Code & Text Ratio
Document Size: ~550.61 KB
Code Size: ~178.9 KB
Text Size: ~371.71 KB Ratio: 67.51%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

My app My app

The web app manifest is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in areas where they would expect to see apps (for example, a mobile device's home screen)
Param name
My app
Manifest is not valid
Your manifest are missing some important params, read more in Web App Manifest

Desktop

Desktop Screenshot
Eliminate render-blocking resources Potential savings of 950 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 50 KB
Optimized images load faster and consume less cellular data
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
Total Blocking Time 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
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
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 3.3 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 1.2 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 5,952 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.2 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 7 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 20 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
Avoid an excessive DOM size 1,993 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 920 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Minify JavaScript Potential savings of 20 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 1.2 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 86 requests • 5,952 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 4 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 50 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 1.3 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
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 22 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 5,031 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 2,810 ms
Time To First Byte identifies the time at which your server sends a response

Mobile

Mobile Screenshot
Avoid chaining critical requests 21 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
Avoid an excessive DOM size 1,993 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 2,550 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Minify JavaScript Potential savings of 20 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 3.7 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 53 requests • 5,866 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 4 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 170 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 6.0 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
Estimated Input Latency 20 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
First Contentful Paint (3G) 7031.5 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Tap targets are not sized appropriately 78% 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
Document uses legible font sizes 99.18% 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
Remove unused CSS Potential savings of 22 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 5,031 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 2,180 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 2,690 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 50 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 230 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
Total Blocking Time 210 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.7 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 14 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 7.2 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 5.5 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 5,866 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 1.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 3.7 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 7 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

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
Date: Sat, 25 Apr 2020 19:00:13 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Vary: Accept-Encoding
Set-Cookie: route=44fa08b890529efa6fecf2fdd83cf466; Path=/; HttpOnly
Vary: Accept-Encoding
Set-Cookie: dlanauczycielapl=qe76afcqqmcsjo3ei61jbj1k88pvvmp3; path=/; secure
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
X-Cache: MISS
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
X-Backend-Server: app-srv1.ovh.nowaera.pl
Server: NE Web Server
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=31536000; includeSubDomains
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records
Type Name Value Class TTL
A dlanauczyciela.pl 51.83.219.183 IN 485
NS dlanauczyciela.pl dns100.ovh.net IN 3600
NS dlanauczyciela.pl ns100.ovh.net IN 3600
MX dlanauczyciela.pl smtp.nowaera.pl IN 3600
TXT dlanauczyciela.pl 1|www.dlanauczyciela.pl IN 600
TXT dlanauczyciela.pl v=spf1 mx a:smtp.nowaera.pl ip4:212.106.5.4 ip4:212.106.5.15 include:_spf.emaillabs.net.pl -all IN 600

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