3 sec in total
641 ms
2.1 sec
314 ms
Visit centrum-kopert.pl now to see the best up-to-date Centrum Kopert content for Poland and also check out these interesting facts you probably never knew about centrum-kopert.pl
Koperty firmowe z nadrukiem. Tania drukarnia. W ofercie: koperty firmowe DL, C5, C6, C4, B5, B4, C6/5, C3, RBD, koperty ekologiczne, PREMIUM, bąbelkowe.
Visit centrum-kopert.plWe analyzed Centrum-kopert.pl page load time and found that the first response time was 641 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
centrum-kopert.pl performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value9.2 s
1/100
25%
Value12.8 s
2/100
10%
Value8,570 ms
0/100
30%
Value0.002
100/100
15%
Value15.5 s
7/100
10%
641 ms
107 ms
280 ms
190 ms
36 ms
Our browser made a total of 66 requests to load all elements on the main page. We found that 77% of them (51 requests) were addressed to the original Centrum-kopert.pl, 5% (3 requests) were made to Facebook.com and 3% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (942 ms) belongs to the original domain Centrum-kopert.pl.
Page size can be reduced by 172.2 kB (26%)
672.7 kB
500.5 kB
In fact, the total size of Centrum-kopert.pl main page is 672.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 501.9 kB which makes up the majority of the site volume.
Potential reduce by 39.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 39.1 kB or 77% of the original size.
Potential reduce by 58.3 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. Obviously, Centrum Kopert needs image optimization as it can save up to 58.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 53.9 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 53.9 kB or 56% of the original size.
Potential reduce by 21.0 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. Centrum-kopert.pl needs all CSS files to be minified and compressed as it can save up to 21.0 kB or 89% of the original size.
Number of requests can be reduced by 26 (41%)
64
38
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrum Kopert. 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 as a result speed up the page load time.
centrum-kopert.pl
641 ms
style.css
107 ms
jquery-1.3.1.min.js
280 ms
slide.js
190 ms
plusone.js
36 ms
jquery.min.js
32 ms
kontakt.js
215 ms
gg.js
193 ms
swfobject.js
217 ms
cb=gapi.loaded_0
63 ms
ga.js
49 ms
bg.png
137 ms
logo2.png
202 ms
home.png
135 ms
ofirmie.png
157 ms
terminy.png
157 ms
stz.png
134 ms
nr.png
206 ms
zm.png
197 ms
kontakt.png
214 ms
slide1.jpg
604 ms
koszyk.png
237 ms
zaufali.png
318 ms
search.png
356 ms
d_1.png
361 ms
aaf22824e85de76461dcead453faf4ef.jpg
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czytajwiecej.png
333 ms
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708 ms
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640 ms
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58c2bdaf5749b99a28e481a421ed660f.gif
462 ms
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562 ms
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719 ms
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717 ms
strzalka.png
765 ms
all.js
39 ms
logo.png
793 ms
big_up.png
803 ms
blue_up.png
806 ms
blue_center.png
820 ms
blue_down.png
853 ms
white_up.png
893 ms
white_center.png
942 ms
white_down.png
942 ms
next_red.png
940 ms
__utm.gif
62 ms
blue_up2.png
828 ms
blue_center2.png
889 ms
128 ms
AxV2hfgfPT
182 ms
ping
171 ms
blue_down2.png
849 ms
bottom_up.png
915 ms
xd_arbiter.php
31 ms
xd_arbiter.php
40 ms
bottom_down.png
901 ms
szybkikontakt.png
864 ms
gg.png
865 ms
mprint.png
885 ms
like.php
130 ms
widget_pl.js
192 ms
-Itb46I4DjZ.js
39 ms
LVx-xkvaJ0b.png
22 ms
centrum-kopert.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
[id] attributes on active, focusable elements are not unique
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
Image elements do not have [alt] attributes
Links do not have a discernible name
centrum-kopert.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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
centrum-kopert.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
PL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrum-kopert.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Centrum-kopert.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.
centrum-kopert.pl
Open Graph description is not detected on the main page of Centrum Kopert. 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: