Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

bus-labo.com

バスラボ~高速バス・夜行バスを100%使いこなしたい人の情報サイト~

Page Load Speed

9.3 sec in total

First Response

558 ms

Resources Loaded

8.4 sec

Page Rendered

333 ms

bus-labo.com screenshot

About Website

Visit bus-labo.com now to see the best up-to-date Bus Labo content for Japan and also check out these interesting facts you probably never knew about bus-labo.com

高速バス・夜行バスの情報サイト。格安便情報・快適に過ごすためのコツ・バス停アクセスなど、高速バスの情報をどこよりも深く追及しています。予約できる便の検索機能つき。

Visit bus-labo.com

Key Findings

We analyzed Bus-labo.com page load time and found that the first response time was 558 ms and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

bus-labo.com performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value17.7 s

4/100

10%

Network Requests Diagram

bus-labo.com

558 ms

bus-labo.com

881 ms

wp-emoji-release.min.js

507 ms

style.css

509 ms

styles.css

513 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 57% of them (60 requests) were addressed to the original Bus-labo.com, 18% (19 requests) were made to Static.xx.fbcdn.net and 3% (3 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Bus-labo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.0 kB (6%)

Content Size

2.1 MB

After Optimization

2.0 MB

In fact, the total size of Bus-labo.com main page is 2.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 59.8 kB

  • Original 78.1 kB
  • After minification 76.9 kB
  • After compression 18.4 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 59.8 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 66 B

  • Original 1.8 MB
  • After minification 1.8 MB

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. Bus Labo images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 70.4 kB

  • Original 202.5 kB
  • After minification 202.4 kB
  • After compression 132.2 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 70.4 kB or 35% of the original size.

CSS Optimization

-15%

Potential reduce by 3.8 kB

  • Original 26.0 kB
  • After minification 25.6 kB
  • After compression 22.2 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. Bus-labo.com needs all CSS files to be minified and compressed as it can save up to 3.8 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 60 (59%)

Requests Now

101

After Optimization

41

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bus Labo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bus-labo.com accessibility score

76

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Definition list items are not wrapped in <dl> elements

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

bus-labo.com best practices score

50

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

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

bus-labo.com SEO score

85

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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 Bus-labo.com 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 Bus-labo.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

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