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bellcurve.jp screenshot

Report Summary

  • 87

    Performance

    Renders faster than
    90% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 78

    SEO

    Google-friendlier than
    40% of websites

bellcurve.jp

BellCurve（ベルカーブ）─統計解析ソフト・アンケート集計ソフト

Page Load Speed

2.7 sec in total

First Response

772 ms

Resources Loaded

1.8 sec

Page Rendered

163 ms

bellcurve.jp screenshot

About Website

Welcome to bellcurve.jp homepage info - get ready to check Bell Curve best content for Japan right away, or after learning these important things about bellcurve.jp

Excelに統計解析の機能を追加する統計解析アドインソフト「エクセル統計」、アンケート集計ソフト「秀吉Dplus」のホームページです。株式会社 社会情報サービスのベルカーブが運営しています。

Visit bellcurve.jp

Key Findings

We analyzed Bellcurve.jp page load time and found that the first response time was 772 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

bellcurve.jp performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

79/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

bellcurve.jp

772 ms

base_top.css

466 ms

ie7.css

313 ms

jquery.js

470 ms

qaTab.js

366 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 50% of them (21 requests) were addressed to the original Bellcurve.jp, 21% (9 requests) were made to Google.com and 7% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (772 ms) belongs to the original domain Bellcurve.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 116.0 kB (27%)

Content Size

434.9 kB

After Optimization

318.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bellcurve.jp main page is 434.9 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. 40% of websites need less resources to load. Images take 213.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 21.1 kB

  • Original 28.8 kB
  • After minification 26.9 kB
  • After compression 7.7 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 21.1 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 3.3 kB

  • Original 213.4 kB
  • After minification 210.2 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. Bell Curve images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 59.1 kB

  • Original 148.7 kB
  • After minification 147.5 kB
  • After compression 89.6 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 59.1 kB or 40% of the original size.

CSS Optimization

-74%

Potential reduce by 32.5 kB

  • Original 43.9 kB
  • After minification 32.5 kB
  • After compression 11.4 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. Bellcurve.jp needs all CSS files to be minified and compressed as it can save up to 32.5 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (41%)

Requests Now

39

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bell Curve. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bellcurve.jp

bellcurve.jp

772 ms

base_top.css

base_top.css

466 ms

ie7.css

ie7.css

313 ms

jquery.js

jquery.js

470 ms

qaTab.js

qaTab.js

366 ms

jquery-ui.css

jquery-ui.css

49 ms

jquery.min.js

jquery.min.js

36 ms

jquery-ui.min.js

jquery-ui.min.js

43 ms

jquery.bxslider.css

jquery.bxslider.css

364 ms

jquery.min.js

jquery.min.js

386 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

620 ms

gmogs_image_115-57_ja.js

gmogs_image_115-57_ja.js

26 ms

analytics.js

analytics.js

29 ms

collect

collect

13 ms

gs_noscript_115-57_ja.gif

gs_noscript_115-57_ja.gif

17 ms

bellc150.png

bellc150.png

197 ms

cam1601_new96.png

cam1601_new96.png

175 ms

cam1601_user96.png

cam1601_user96.png

174 ms

top_ex96.png

top_ex96.png

173 ms

top_hd96.png

top_hd96.png

364 ms

top_ts96.png

top_ts96.png

363 ms

top_bellc96.png

top_bellc96.png

317 ms

top_statweb2.png

top_statweb2.png

317 ms

12390091_05_75_JP.gif

12390091_05_75_JP.gif

318 ms

ssri_logo40.png

ssri_logo40.png

390 ms

cse.js

cse.js

42 ms

siteSeal.do

siteSeal.do

377 ms

bx_loader.gif

bx_loader.gif

423 ms

controls.png

controls.png

425 ms

icomoon.ttf

icomoon.ttf

424 ms

jsapi

jsapi

17 ms

default+ja.css

default+ja.css

4 ms

default.css

default.css

36 ms

default+ja.I.js

default+ja.I.js

12 ms

default.css

default.css

30 ms

async-ads.js

async-ads.js

44 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

24 ms

small-logo.png

small-logo.png

35 ms

search_box_icon.png

search_box_icon.png

34 ms

clear.gif

clear.gif

33 ms

nav_logo114.png

nav_logo114.png

20 ms

siteSealImage.do

siteSealImage.do

184 ms

Accessibility Review

bellcurve.jp accessibility score

75

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Image elements do not have [alt] attributes

Best Practices

bellcurve.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

bellcurve.jp SEO score

78

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

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

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 Bellcurve.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 Bellcurve.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

bellcurve.jp

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