Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

travel.rakuten.co.jp

楽天トラベル: 宿・ホテル予約 国内旅行・海外旅行 予約サイト

Page Load Speed

6.9 sec in total

First Response

1.1 sec

Resources Loaded

4.8 sec

Page Rendered

937 ms

travel.rakuten.co.jp screenshot

About Website

Welcome to travel.rakuten.co.jp homepage info - get ready to check Travel Rakuten best content for Japan right away, or after learning these important things about travel.rakuten.co.jp

国内・海外旅行なら日本最大級の宿泊予約サイト「楽天トラベル」。ホテル・ツアー予約や航空券・レンタカー・高速バス予約、観光情報も満載!ホテルの口コミ数は1000万件以上で日本最大級!楽天ポイント貯まる・使える!

Visit travel.rakuten.co.jp

Key Findings

We analyzed Travel.rakuten.co.jp page load time and found that the first response time was 1.1 sec and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

travel.rakuten.co.jp performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value15.4 s

1/100

10%

TBT (Total Blocking Time)

Value2,570 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.134

80/100

15%

TTI (Time to Interactive)

Value26.8 s

0/100

10%

Network Requests Diagram

travel.rakuten.co.jp

1127 ms

default.css

551 ms

style-pc.css

567 ms

styles.css

552 ms

util.calendar.css

841 ms

Our browser made a total of 195 requests to load all elements on the main page. We found that 7% of them (14 requests) were addressed to the original Travel.rakuten.co.jp, 48% (94 requests) were made to Img.travel.rakuten.co.jp and 22% (43 requests) were made to Trv.r10s.jp. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Ias.r10s.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 906.1 kB (39%)

Content Size

2.3 MB

After Optimization

1.4 MB

In fact, the total size of Travel.rakuten.co.jp main page is 2.3 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 156.3 kB

  • Original 189.3 kB
  • After minification 177.9 kB
  • After compression 32.9 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 156.3 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 56.2 kB

  • Original 1.1 MB
  • After minification 1.1 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. Travel Rakuten images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 570.4 kB

  • Original 832.3 kB
  • After minification 801.6 kB
  • After compression 261.9 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 570.4 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 123.1 kB

  • Original 147.3 kB
  • After minification 119.2 kB
  • After compression 24.2 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. Travel.rakuten.co.jp needs all CSS files to be minified and compressed as it can save up to 123.1 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 92 (47%)

Requests Now

194

After Optimization

102

The browser has sent 194 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Travel Rakuten. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 66 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

travel.rakuten.co.jp accessibility score

89

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.

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

Links do not have a discernible name

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

travel.rakuten.co.jp best practices score

67

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

High

Uses deprecated APIs

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

travel.rakuten.co.jp SEO score

91

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

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 Travel.rakuten.co.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 Travel.rakuten.co.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

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