Tools & Wizards About Us
r-letter.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

r-letter.com

『√Letter ルートレター』公式サイト｜角川ゲームミステリー

Page Load Speed

10 sec in total

First Response

932 ms

Resources Loaded

8.8 sec

Page Rendered

243 ms

r-letter.com screenshot

About Website

Welcome to r-letter.com homepage info - get ready to check R Letter best content for Japan right away, or after learning these important things about r-letter.com

ペンフレンドからのラスト・レター。『私は人を殺してしまいました。罪を償わなければなりません。これでお別れです。さようなら』15年前、彼女に何が起きたのか？今、どこにいるのか？回想と現実が織りなす青春サスペンス『√Letter ルートレター』

Visit r-letter.com

Key Findings

We analyzed R-letter.com page load time and found that the first response time was 932 ms and then it took 9.1 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

r-letter.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.629

9/100

15%

TTI (Time to Interactive)

Value6.5 s

59/100

10%

Network Requests Diagram

r-letter.com

932 ms

base.css

321 ms

glide.core.css

321 ms

slide.css

331 ms

jquery.fancybox.css

544 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 95% of them (61 requests) were addressed to the original R-letter.com, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (6.6 sec) belongs to the original domain R-letter.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.5 kB (6%)

Content Size

4.4 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of R-letter.com main page is 4.4 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. 20% of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 8.5 kB

  • Original 12.1 kB
  • After minification 11.1 kB
  • After compression 3.7 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 8.5 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 42.2 kB

  • Original 4.1 MB
  • After minification 4.1 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. R Letter images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 181.3 kB

  • Original 270.2 kB
  • After minification 242.2 kB
  • After compression 88.9 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 181.3 kB or 67% of the original size.

CSS Optimization

-76%

Potential reduce by 18.5 kB

  • Original 24.4 kB
  • After minification 20.2 kB
  • After compression 5.9 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. R-letter.com needs all CSS files to be minified and compressed as it can save up to 18.5 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (37%)

Requests Now

62

After Optimization

39

  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R Letter. 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

r-letter.com

r-letter.com

932 ms

base.css

base.css

321 ms

glide.core.css

glide.core.css

321 ms

slide.css

slide.css

331 ms

jquery.fancybox.css

jquery.fancybox.css

544 ms

top.css

top.css

573 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

994 ms

jquery.imgloader.min.js

jquery.imgloader.min.js

634 ms

jquery.glide.js

jquery.glide.js

800 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

867 ms

jplayer.css

jplayer.css

874 ms

jquery.cookie.js

jquery.cookie.js

721 ms

jquery.jplayer.min.js

jquery.jplayer.min.js

1483 ms

jplayer.playlist.js

jplayer.playlist.js

1477 ms

jquery.jplayer.inspector.js

jquery.jplayer.inspector.js

1477 ms

bgm.js

bgm.js

1218 ms

setting.js

setting.js

1237 ms

common.js

common.js

1319 ms

analytics.js

analytics.js

26 ms

loading.gif

loading.gif

1151 ms

logo_mystery.png

logo_mystery.png

1180 ms

logo_ps4.png

logo_ps4.png

1250 ms

logo_vita.png

logo_vita.png

1415 ms

slide01_bg.jpg

slide01_bg.jpg

2298 ms

slide01.jpg

slide01.jpg

3252 ms

slide01_sp.jpg

slide01_sp.jpg

2682 ms

slide02_bg.jpg

slide02_bg.jpg

2214 ms

slide02.jpg

slide02.jpg

3124 ms

slide02_sp.jpg

slide02_sp.jpg

3038 ms

slide03_bg.jpg

slide03_bg.jpg

3308 ms

slide03.jpg

slide03.jpg

3975 ms

slide03_sp.jpg

slide03_sp.jpg

4020 ms

slide04_bg.jpg

slide04_bg.jpg

4414 ms

slide04.jpg

slide04.jpg

4819 ms

slide04_sp.jpg

slide04_sp.jpg

4672 ms

logo_r_letter.png

logo_r_letter.png

4010 ms

banner_taiwan_ov.png

banner_taiwan_ov.png

5461 ms

banner_taiwan.png

banner_taiwan.png

5343 ms

topbtn_movie_on.png

topbtn_movie_on.png

5334 ms

topbtn_movie_off.png

topbtn_movie_off.png

5671 ms

topbtn_chara_on.png

topbtn_chara_on.png

5900 ms

topbtn_chara_off.png

topbtn_chara_off.png

6120 ms

topbtn_special01_on.png

topbtn_special01_on.png

6607 ms

collect

collect

26 ms

collect

collect

71 ms

topbtn_special01_off.png

topbtn_special01_off.png

6339 ms

txt_spec.png

txt_spec.png

5900 ms

cero.gif

cero.gif

5659 ms

txt_staff.png

txt_staff.png

6001 ms

pagetop.png

pagetop.png

5922 ms

sns_twitter.png

sns_twitter.png

5869 ms

sns_facebook.png

sns_facebook.png

5755 ms

logo_kadokawagames.png

logo_kadokawagames.png

6100 ms

logo_kadokawagamestudio.png

logo_kadokawagamestudio.png

5881 ms

logo_ps_min.png

logo_ps_min.png

5776 ms

logo_ps4_min.png

logo_ps4_min.png

5834 ms

logo_vita_min.png

logo_vita_min.png

5806 ms

bgm_title.png

bgm_title.png

5808 ms

icon_sound.png

icon_sound.png

5965 ms

bgm_on.png

bgm_on.png

5939 ms

bgm_off.png

bgm_off.png

5850 ms

vol_seek.png

vol_seek.png

5065 ms

vol_progress.png

vol_progress.png

5006 ms

ico_new.png

ico_new.png

4819 ms

Accessibility Review

r-letter.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.

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

High

Links do not have a discernible name

Best Practices

r-letter.com 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

r-letter.com SEO score

82

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 R-letter.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 R-letter.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

r-letter.com

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