Tools & Wizards About Us
b-prep.com screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

b-prep.com

フリーエンジニア(牧野哲雄) ビヨンド・プレップ - システム開発請負、ブログ作成、ホームページ作成

Page Load Speed

2.4 sec in total

First Response

645 ms

Resources Loaded

1.7 sec

Page Rendered

116 ms

b-prep.com screenshot

About Website

Welcome to b-prep.com homepage info - get ready to check B Prep best content for Japan right away, or after learning these important things about b-prep.com

個人だから出来るWEB制作、フリーエンジニア 牧野哲雄 (屋号 : ビヨンド プレップ)のサイトです。システム開発請負/webデザイン/ホームページ制作を行っております。 その他、ドメイン取得/サーバー設置代行/PC講師等なども行っております。 小規模から大規模まで様々な開発経験もございます。 IT関係でお悩みの方はぜひご相談ください。

Visit b-prep.com

Key Findings

We analyzed B-prep.com page load time and found that the first response time was 645 ms and then it took 1.8 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

b-prep.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.204

61/100

15%

TTI (Time to Interactive)

Value4.5 s

82/100

10%

Network Requests Diagram

b-prep.com

645 ms

bootstrap.min.css

414 ms

focus.css

406 ms

focus-responsive.css

405 ms

homepage.css

407 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 70% of them (14 requests) were addressed to the original B-prep.com, 15% (3 requests) were made to Fonts.gstatic.com and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (645 ms) belongs to the original domain B-prep.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.2 kB (11%)

Content Size

215.9 kB

After Optimization

191.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of B-prep.com main page is 215.9 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. 25% of websites need less resources to load. Images take 116.4 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.1 kB

  • Original 8.7 kB
  • After minification 7.0 kB
  • After compression 2.6 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 1.7 kB, which is 19% 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 6.1 kB or 70% of the original size.

Image Optimization

-3%

Potential reduce by 3.4 kB

  • Original 116.4 kB
  • After minification 113.0 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. B Prep images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 6.9 kB

  • Original 64.0 kB
  • After minification 63.9 kB
  • After compression 57.1 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 6.9 kB or 11% of the original size.

CSS Optimization

-29%

Potential reduce by 7.7 kB

  • Original 26.8 kB
  • After minification 26.6 kB
  • After compression 19.1 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. B-prep.com needs all CSS files to be minified and compressed as it can save up to 7.7 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (56%)

Requests Now

16

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of B Prep. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

b-prep.com

b-prep.com

645 ms

bootstrap.min.css

bootstrap.min.css

414 ms

focus.css

focus.css

406 ms

focus-responsive.css

focus-responsive.css

405 ms

homepage.css

homepage.css

407 ms

style.css

style.css

417 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

645 ms

bootstrap.min.js

bootstrap.min.js

610 ms

focus.js

focus.js

609 ms

font-awesome.css

font-awesome.css

206 ms

css

css

25 ms

ga.js

ga.js

32 ms

bg.png

bg.png

415 ms

logo.png

logo.png

205 ms

bprep_3.jpg

bprep_3.jpg

404 ms

logo_footer.png

logo_footer.png

204 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

15 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

15 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

26 ms

__utm.gif

__utm.gif

14 ms

Accessibility Review

b-prep.com accessibility score

74

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a valid value for its [lang] attribute.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

b-prep.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

b-prep.com SEO score

93

Search Engine Optimization Advices

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

    JP

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise B-prep.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed language. Our system also found out that B-prep.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.

Social Sharing Optimization

b-prep.com

Open Graph data is detected on the main page of B Prep. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: