4.6 sec in total
492 ms
2.6 sec
1.5 sec
Welcome to developers.slashdot.jp homepage info - get ready to check Developers Slashdot best content for United States right away, or after learning these important things about developers.slashdot.jp
Visit developers.slashdot.jpWe analyzed Developers.slashdot.jp page load time and found that the first response time was 492 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.
developers.slashdot.jp performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value5.1 s
24/100
25%
Value8.1 s
21/100
10%
Value1,080 ms
24/100
30%
Value0.118
85/100
15%
Value12.6 s
14/100
10%
492 ms
686 ms
465 ms
468 ms
930 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Developers.slashdot.jp, 69% (18 requests) were made to Images.srad.jp and 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (930 ms) relates to the external source Images.srad.jp.
Page size can be reduced by 413.9 kB (65%)
632.0 kB
218.1 kB
In fact, the total size of Developers.slashdot.jp main page is 632.0 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. 25% of websites need less resources to load. Javascripts take 399.5 kB which makes up the majority of the site volume.
Potential reduce by 94.3 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. 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 94.3 kB or 74% of the original size.
Potential reduce by 76 B
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. Developers Slashdot images are well optimized though.
Potential reduce by 260.3 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 260.3 kB or 65% of the original size.
Potential reduce by 59.1 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. Developers.slashdot.jp needs all CSS files to be minified and compressed as it can save up to 59.1 kB or 83% of the original size.
Number of requests can be reduced by 4 (17%)
23
19
The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Developers Slashdot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
developers.slashdot.jp
492 ms
developers.srad.jp
686 ms
font-awesome.min.css
465 ms
classic.css
468 ms
all-minified.js
930 ms
dfp-code2.js
321 ms
gpt.js
140 ms
analytics.js
140 ms
srad_logo02.png
200 ms
windows_64.png
200 ms
ruby_64.png
201 ms
ibm_64.png
202 ms
chrome_64.png
313 ms
android_64.png
319 ms
java_64.png
314 ms
firefox_64.png
319 ms
os_64.png
319 ms
ios_64.png
329 ms
programming_64.png
464 ms
games_64.png
466 ms
fontawesome-webfont.woff
502 ms
sprite-syndication.png
343 ms
pubads_impl_81.js
71 ms
collect
42 ms
collect
116 ms
container.html
13 ms
developers.slashdot.jp 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
[role] values are not valid
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
Form elements do not have associated labels
Links do not have a discernible name
developers.slashdot.jp 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
developers.slashdot.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Developers.slashdot.jp 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 Developers.slashdot.jp 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.
developers.slashdot.jp
Open Graph description is not detected on the main page of Developers Slashdot. 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: