5.3 sec in total
801 ms
4 sec
452 ms
Click here to check amazing Drbd content for Japan. Otherwise, check out these important facts you probably never knew about drbd.jp
DRBD(Distributed Replicated Block Device)とは、複数サーバのストレージをリアルタイムにミラーリング(複製)するオープンソースソフ トウェアです。概要から動作環境や活用シーンなど詳しく解説します。
Visit drbd.jpWe analyzed Drbd.jp page load time and found that the first response time was 801 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
drbd.jp performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value10.2 s
0/100
25%
Value7.6 s
25/100
10%
Value790 ms
37/100
30%
Value0.197
63/100
15%
Value10.4 s
24/100
10%
801 ms
1022 ms
156 ms
954 ms
155 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 85% of them (39 requests) were addressed to the original Drbd.jp, 11% (5 requests) were made to Majisemi.com and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Drbd.jp.
Page size can be reduced by 146.5 kB (18%)
820.5 kB
674.0 kB
In fact, the total size of Drbd.jp main page is 820.5 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. 25% of websites need less resources to load. Images take 777.7 kB which makes up the majority of the site volume.
Potential reduce by 11.7 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 11.7 kB or 69% of the original size.
Potential reduce by 127.5 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. Obviously, Drbd needs image optimization as it can save up to 127.5 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 7.2 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. Drbd.jp needs all CSS files to be minified and compressed as it can save up to 7.2 kB or 83% of the original size.
Number of requests can be reduced by 22 (52%)
42
20
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Drbd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
drbd.jp
801 ms
www.drbd.jp
1022 ms
style.css
156 ms
api.js
954 ms
header_logo.png
155 ms
header_3ware_logo.png
308 ms
header_image3.jpg
1072 ms
menu_background.png
465 ms
menu_top.png
466 ms
menu_what_drbd.png
472 ms
menu_jirei.png
491 ms
menu_document.png
492 ms
menu_support.png
616 ms
menu_event.png
617 ms
menu_download.png
626 ms
menu_faq.png
650 ms
menu_column.png
850 ms
menu_link.png
769 ms
menu_contact.png
926 ms
cont_image01.png
938 ms
img_data_protect01.png
1135 ms
img_remote_backup01.png
1077 ms
drbd9-011.png
1145 ms
drbd9-05.png
1543 ms
drbd9-06.png
1250 ms
drbd9-07.png
1220 ms
footer_3ware_logo.png
1231 ms
contents_vBar.png
510 ms
footer_bar.png
515 ms
%E7%94%BB%E5%83%8F2.jpg
861 ms
%E7%94%BB%E5%83%8F2.jpg
719 ms
%E7%94%BB%E5%83%8F2.jpg
928 ms
%E7%94%BB%E5%83%8F2.jpg
793 ms
ga.js
30 ms
acclog.cgi
333 ms
__utm.gif
19 ms
acclog.cgi
192 ms
menu_top_d.png
155 ms
menu_what_drbd_d.png
157 ms
menu_jirei_d.png
159 ms
menu_document_d.png
157 ms
menu_support_d.png
165 ms
menu_download_d.png
164 ms
menu_faq_d.png
305 ms
menu_link_d.png
311 ms
menu_partner_d.png
310 ms
drbd.jp 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
Form elements do not have associated labels
Links do not have a discernible name
drbd.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
drbd.jp 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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Drbd.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Drbd.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.
drbd.jp
Open Graph description is not detected on the main page of Drbd. 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: