4.4 sec in total
710 ms
2.9 sec
832 ms
Welcome to devday.pl homepage info - get ready to check Dev Day best content for Poland right away, or after learning these important things about devday.pl
Official website for DevDay 2015 conference
Visit devday.plWe analyzed Devday.pl page load time and found that the first response time was 710 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
devday.pl performance score
name
value
score
weighting
Value3.1 s
45/100
10%
Value3.4 s
66/100
25%
Value3.3 s
91/100
10%
Value470 ms
61/100
30%
Value0.004
100/100
15%
Value7.8 s
44/100
10%
710 ms
884 ms
641 ms
300 ms
8 ms
Our browser made a total of 70 requests to load all elements on the main page. We found that 86% of them (60 requests) were addressed to the original Devday.pl, 7% (5 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Devday.pl.
Page size can be reduced by 426.1 kB (12%)
3.5 MB
3.0 MB
In fact, the total size of Devday.pl main page is 3.5 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. 60% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.
Potential reduce by 29.6 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 14.6 kB, which is 42% 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 29.6 kB or 86% of the original size.
Potential reduce by 18.5 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. Dev Day images are well optimized though.
Potential reduce by 169.9 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 169.9 kB or 71% of the original size.
Potential reduce by 208.1 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. Devday.pl needs all CSS files to be minified and compressed as it can save up to 208.1 kB or 86% of the original size.
Number of requests can be reduced by 12 (19%)
63
51
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev Day. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
devday.pl
710 ms
bootstrap.css
884 ms
responsive.css
641 ms
responsive-custom.css
300 ms
font-awesome.css
8 ms
theme.css
769 ms
fonts.css
254 ms
theme-custom.css
530 ms
logo_2015.svg
958 ms
main-image-2.png
1010 ms
speakers.png
1086 ms
sessions.png
1045 ms
workshops.png
1043 ms
location.png
1159 ms
scott_allen.png
986 ms
rob_conery.png
1027 ms
will_evans.png
1069 ms
gary_short.png
1095 ms
chris_heilmann.png
1151 ms
chad_fowler.png
1152 ms
nat_pryce.png
1169 ms
oliver_sturm.png
1184 ms
steve_freeman.png
1204 ms
scott_allen_300.png
1356 ms
oliver_sturm_300.png
1414 ms
mathias_brandewinder_300.png
1412 ms
css
24 ms
clapping.jpg
1219 ms
rob.jpg
1328 ms
stairs.jpg
1348 ms
discussion.jpg
1358 ms
standing.jpg
1499 ms
wg_net.png
1425 ms
wroc_net.png
1441 ms
dotnetomaniak.png
1457 ms
devtalk.png
1477 ms
devwarsztaty.jpg
1744 ms
lodzka_grupa_net.png
1571 ms
bstoknet-logo.png
1591 ms
dotnetconf_pl.png
1637 ms
jquery.min.js
1750 ms
bootstrap.js
1603 ms
jquery.flexslider-min.js
1424 ms
script.js
1312 ms
script-custom.js
1165 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
5 ms
nj47mAZe0mYUIySgfn0wpQ.ttf
26 ms
zJY4gsxBiSo5L7tNutxFNg.ttf
26 ms
DvlFBScY1r-FMtZSYIYoYw.ttf
25 ms
4cKlrioa77J2iqTqBgkRWg.ttf
26 ms
fontawesome-webfont.woff
24 ms
get_net.png
1110 ms
mce.png
1101 ms
jday_lviv.png
1076 ms
wrocsharp.png
1093 ms
devldz.png
1047 ms
ncrafts.png
1056 ms
mobilization.png
1059 ms
juglodz.png
1086 ms
kgdnet.png
1084 ms
buildstuff.png
1045 ms
oredev.png
1003 ms
spotkania_it.png
1093 ms
interia.png
1076 ms
abb.jpg
1075 ms
grid.png
1081 ms
top-shadow.png
941 ms
bottom-shadow.png
930 ms
analytics.js
10 ms
collect
12 ms
devday.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
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
devday.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
devday.pl SEO score
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devday.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Devday.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.
devday.pl
Open Graph data is detected on the main page of Dev Day. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: