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Welcome to developerdays.pl homepage info - get ready to check Developer Days best content for Poland right away, or after learning these important things about developerdays.pl
.NET DeveloperDays 2023 - Premium conference for all developers using Microsoft development stack
Visit developerdays.plWe analyzed Developerdays.pl page load time and found that the first response time was 1.2 sec and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
developerdays.pl performance score
name
value
score
weighting
Value8.8 s
0/100
10%
Value16.1 s
0/100
25%
Value21.1 s
0/100
10%
Value3,290 ms
2/100
30%
Value1.001
2/100
15%
Value27.2 s
0/100
10%
1152 ms
407 ms
396 ms
411 ms
783 ms
Our browser made a total of 67 requests to load all elements on the main page. We found that 39% of them (26 requests) were addressed to the original Developerdays.pl, 30% (20 requests) were made to Static.xx.fbcdn.net and 13% (9 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Developerdays.pl.
Page size can be reduced by 226.1 kB (42%)
540.7 kB
314.6 kB
In fact, the total size of Developerdays.pl main page is 540.7 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. 60% of websites need less resources to load. Images take 244.5 kB which makes up the majority of the site volume.
Potential reduce by 28.4 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 28.4 kB or 75% of the original size.
Potential reduce by 29.9 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, Developer Days needs image optimization as it can save up to 29.9 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 93.8 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 93.8 kB or 55% of the original size.
Potential reduce by 74.0 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. Developerdays.pl needs all CSS files to be minified and compressed as it can save up to 74.0 kB or 85% of the original size.
Number of requests can be reduced by 36 (61%)
59
23
The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Developer Days. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
developerdays.pl
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developerdays.pl accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Links do not have a discernible name
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.
developerdays.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
Browser errors were logged to the console
Page has valid source maps
developerdays.pl SEO score
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
EN
PL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Developerdays.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Polish language. Our system also found out that Developerdays.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.
developerdays.pl
Open Graph data is detected on the main page of Developer Days. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: