1.9 sec in total
408 ms
1.3 sec
151 ms
Click here to check amazing Open Stack Days content for Japan. Otherwise, check out these important facts you probably never knew about openstackdays.com
Visit openstackdays.comWe analyzed Openstackdays.com page load time and found that the first response time was 408 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
openstackdays.com performance score
name
value
score
weighting
Value3.9 s
26/100
10%
Value4.8 s
31/100
25%
Value8.8 s
15/100
10%
Value250 ms
84/100
30%
Value0.001
100/100
15%
Value9.6 s
29/100
10%
408 ms
293 ms
294 ms
31 ms
31 ms
Our browser made a total of 25 requests to load all elements on the main page. We found that 64% of them (16 requests) were addressed to the original Openstackdays.com, 8% (2 requests) were made to Google-analytics.com and 8% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (591 ms) belongs to the original domain Openstackdays.com.
Page size can be reduced by 72.2 kB (44%)
163.5 kB
91.4 kB
In fact, the total size of Openstackdays.com main page is 163.5 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. 30% of websites need less resources to load. Javascripts take 71.4 kB which makes up the majority of the site volume.
Potential reduce by 13.0 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 13.0 kB or 73% of the original size.
Potential reduce by 4.6 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. Open Stack Days images are well optimized though.
Potential reduce by 44.6 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 44.6 kB or 62% of the original size.
Potential reduce by 10.0 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. Openstackdays.com needs all CSS files to be minified and compressed as it can save up to 10.0 kB or 81% of the original size.
Number of requests can be reduced by 5 (23%)
22
17
The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open Stack 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 6 to 1 for JavaScripts and as a result speed up the page load time.
openstackdays.com
408 ms
style.css
293 ms
jquery.jscrollpane.css
294 ms
css
31 ms
jquery.min.js
31 ms
jquery.mousewheel.js
311 ms
jquery.jscrollpane.min.js
311 ms
jquery.rollover.js
313 ms
analytics.js
7 ms
logo.png
302 ms
icon_fb.gif
301 ms
visual_e.png
305 ms
banner_sponsor.jpg
303 ms
banner2015.jpg
304 ms
banner2014.jpg
306 ms
banner2013.jpg
591 ms
sdk.js
54 ms
menu_off.jpg
536 ms
visual_back.jpg
536 ms
bullet.png
537 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
51 ms
collect
35 ms
129 ms
xd_arbiter.php
32 ms
xd_arbiter.php
38 ms
openstackdays.com 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.
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
openstackdays.com 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
Missing source maps for large first-party JavaScript
openstackdays.com 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
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Openstackdays.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Openstackdays.com 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.
openstackdays.com
Open Graph description is not detected on the main page of Open Stack Days. 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: