Access dff.jp. sumabo クリックで救える命がある。

name

value

score

weighting

FCP (First Contentful Paint)

Value8.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.6 s

0/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value1,890 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.353

31/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

dff.jp

309 ms

www.dff.jp

835 ms

common_main.css

295 ms

main.css

442 ms

jquery_sidr.css

316 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 44% of them (56 requests) were addressed to the original Dff.jp, 16% (21 requests) were made to Abs.twimg.com and 16% (20 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Dff.jp.

Content Size

936.5 kB

After Optimization

652.5 kB

In fact, the total size of Dff.jp main page is 936.5 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. 60% of websites need less resources to load. Images take 563.9 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 82.9 kB

Original 92.7 kB
After minification 35.4 kB
After compression 9.7 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. This page needs HTML code to be minified as it can gain 57.3 kB, which is 62% 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 82.9 kB or 90% of the original size.

Image Optimization

-10%

Potential reduce by 58.4 kB

Original 563.9 kB
After minification 505.5 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. Dff images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 110.0 kB

Original 241.0 kB
After minification 223.6 kB
After compression 131.0 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 110.0 kB or 46% of the original size.

CSS Optimization

-84%

Potential reduce by 32.7 kB

Original 39.0 kB
After minification 28.5 kB
After compression 6.3 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. Dff.jp needs all CSS files to be minified and compressed as it can save up to 32.7 kB or 84% of the original size.

Requests Now

126

After Optimization

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dff. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dff.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 Dff.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.

Social Sharing Optimization

dff.jp

Open Graph description is not detected on the main page of Dff. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

sumabo クリックで救える命がある。 | dff.jp

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

dff.jp

www.dff.jp

common_main.css

main.css

jquery_sidr.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

dff.jp

www.dff.jp

common_main.css

main.css

jquery_sidr.css

jquery-1.9.1.min.js

common.js

jquery.sidr.min.js

snscoop.js

sdk.js

jquery.cookie.js

jquery.layerBoard.js

top.js

swfobject.js

adsbygoogle.js

ga.js

logo_dff_b_151116.gif

logo_fb_b_r.gif

txt_sumabo_supporter_151116.gif

btn_menu_sp.gif

btn_fb_newregist_sp.gif

btn_newregist_sp.gif

btn_login_sumabo_sp.gif

btn_login_facebook_sp.gif

txt_share_milestone.gif

txt_lead.gif

btn_beginner_r.gif

txt_lead_sp.gif

btn_beginner_sp_r.gif

btn_close.gif

img_welcome.gif

h2_01.gif

h2_02.gif

bnr_torecruit_r.gif

btn_cosmo_r.jpg

btn_jx_2015_r.gif

btn_canon_2016_r.jpg

btn_takara_2016_02_r.gif

img_list_bg.gif

logo_fb_b_r.gif

logo_tw_b_r.gif

img_list_bg_02.gif

btn_fb_newregist_r.gif