4.5 sec in total
369 ms
3.9 sec
279 ms
Click here to check amazing Derowerk content. Otherwise, check out these important facts you probably never knew about derowerk.pl
Derowerk to ocieplanie budynków metodą wdmuchiwania wełny celulozowej Isocell For You, docieplenie stropodachu, poddasza i piwnic, izolacja termoakustyczna garaży podziemnych, szczelność powietrzno-wi...
Visit derowerk.plWe analyzed Derowerk.pl page load time and found that the first response time was 369 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
derowerk.pl performance score
name
value
score
weighting
Value5.6 s
6/100
10%
Value8.0 s
2/100
25%
Value11.9 s
4/100
10%
Value430 ms
64/100
30%
Value0.25
49/100
15%
Value14.7 s
8/100
10%
369 ms
854 ms
579 ms
322 ms
330 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 80% of them (47 requests) were addressed to the original Derowerk.pl, 8% (5 requests) were made to Fonts.googleapis.com and 5% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Derowerk.pl.
Page size can be reduced by 680.1 kB (27%)
2.6 MB
1.9 MB
In fact, the total size of Derowerk.pl main page is 2.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 26.3 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 6.2 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 26.3 kB or 75% of the original size.
Potential reduce by 88.8 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Derowerk images are well optimized though.
Potential reduce by 422.6 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 422.6 kB or 73% of the original size.
Potential reduce by 142.3 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Derowerk.pl needs all CSS files to be minified and compressed as it can save up to 142.3 kB or 85% of the original size.
Number of requests can be reduced by 27 (50%)
54
27
The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Derowerk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
derowerk.pl
369 ms
www.derowerk.pl
854 ms
bootstrap.min.css
579 ms
bootstrap-responsive.min.css
322 ms
template.css
330 ms
my-responsive.css
223 ms
paralaxslider.css
335 ms
modernizr.custom.28468.js
248 ms
jquery.cslider.js
333 ms
css
27 ms
css
40 ms
finder.css
357 ms
jquery.min.js
754 ms
jquery-noconflict.js
439 ms
jquery-migrate.min.js
444 ms
caption.js
448 ms
bootstrap.min.js
567 ms
jquery.autocomplete.min.js
549 ms
jquery.min.js
37 ms
jquery-ui-1.7.2.custom.js
1298 ms
jquery.jcoverflip.js
667 ms
css
16 ms
css
24 ms
css
24 ms
analytics.js
23 ms
pl.gif
114 ms
en.gif
136 ms
ru.gif
136 ms
logo.png
137 ms
przycisk_czytaj_wiecej.png
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ocieplenie-stropodachu-welna-celuloza.jpg
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logo2.png
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news.gif
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979 ms
rzetelna_firma_logo_wys_51px-2.jpg
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gtm.js
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derowerk.pl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Form elements do not have associated labels
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
derowerk.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
derowerk.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
PL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Derowerk.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Derowerk.pl main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
derowerk.pl
Open Graph description is not detected on the main page of Derowerk. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: