Tools & Wizards About Us
k-rooms.jp screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

k-rooms.jp

【公式】貸会議室・レンタルスペースルームス｜錦糸町駅・水道橋駅 格安会議室ルームス

Page Load Speed

6.1 sec in total

First Response

501 ms

Resources Loaded

5.5 sec

Page Rendered

153 ms

k-rooms.jp screenshot

About Website

Welcome to k-rooms.jp homepage info - get ready to check K Rooms best content right away, or after learning these important things about k-rooms.jp

貸し会議室・レンタルスペースルームス。駅チカ・格安貸会議室。会議、セミナー、研修、面接会場として最適な少人数会議室。プロジェクター、スクリーン、Wifi完備。インターネット予約可能！

Visit k-rooms.jp

Key Findings

We analyzed K-rooms.jp page load time and found that the first response time was 501 ms and then it took 5.6 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

k-rooms.jp performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

k-rooms.jp

501 ms

k-rooms.jp

787 ms

base.css

488 ms

style.css

496 ms

jquery-1.4.4.min.js

841 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 89% of them (39 requests) were addressed to the original K-rooms.jp, 5% (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 (3.3 sec) belongs to the original domain K-rooms.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 44.3 kB (9%)

Content Size

519.6 kB

After Optimization

475.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of K-rooms.jp main page is 519.6 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. 20% of websites need less resources to load. Images take 434.2 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 23.5 kB

  • Original 27.8 kB
  • After minification 17.3 kB
  • After compression 4.3 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 10.5 kB, which is 38% 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 23.5 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 14.5 kB

  • Original 434.2 kB
  • After minification 419.7 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. K Rooms images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 4.5 kB

  • Original 52.5 kB
  • After minification 52.5 kB
  • After compression 48.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-36%

Potential reduce by 1.8 kB

  • Original 5.0 kB
  • After minification 5.0 kB
  • After compression 3.2 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. K-rooms.jp needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (14%)

Requests Now

42

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of K Rooms. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

k-rooms.jp

k-rooms.jp

501 ms

k-rooms.jp

k-rooms.jp

787 ms

base.css

base.css

488 ms

style.css

style.css

496 ms

jquery-1.4.4.min.js

jquery-1.4.4.min.js

841 ms

analytics.js

analytics.js

21 ms

bg.gif

bg.gif

481 ms

logo.gif

logo.gif

486 ms

header-tel.jpg

header-tel.jpg

487 ms

header-fax.jpg

header-fax.jpg

487 ms

20231023kanda.jpg

20231023kanda.jpg

1002 ms

c-201mini_top.jpg

c-201mini_top.jpg

1219 ms

kinshicho_kitaguchiekimae.jpg

kinshicho_kitaguchiekimae.jpg

1328 ms

c-404mini_top.jpg

c-404mini_top.jpg

1154 ms

hachobori_dai1.jpg

hachobori_dai1.jpg

1320 ms

hachobori_dai2.jpg

hachobori_dai2.jpg

1331 ms

kanda_dai1.jpg

kanda_dai1.jpg

1807 ms

kanda_dai2.jpg

kanda_dai2.jpg

1963 ms

side-res-title.gif

side-res-title.gif

1742 ms

side-vacancy-title.gif

side-vacancy-title.gif

1813 ms

footer-logo.gif

footer-logo.gif

1836 ms

collect

collect

11 ms

collect

collect

27 ms

js

js

72 ms

ga-audiences

ga-audiences

24 ms

nav-bg.gif

nav-bg.gif

1503 ms

nav-01.gif

nav-01.gif

1906 ms

nav-02.gif

nav-02.gif

1974 ms

nav-03.gif

nav-03.gif

1978 ms

nav-04.gif

nav-04.gif

1986 ms

nav-05.gif

nav-05.gif

2007 ms

nav-06.gif

nav-06.gif

2126 ms

nav-07.gif

nav-07.gif

2423 ms

top-conf-bg.gif

top-conf-bg.gif

2467 ms

net-res-btn.jpg

net-res-btn.jpg

2842 ms

vacancy-btn.jpg

vacancy-btn.jpg

2675 ms

member-btn.gif

member-btn.gif

2514 ms

regist-btn.jpg

regist-btn.jpg

2810 ms

localNav-01.gif

localNav-01.gif

2876 ms

localNav-02.gif

localNav-02.gif

2958 ms

localNav-03.gif

localNav-03.gif

3012 ms

localNav-04.gif

localNav-04.gif

3155 ms

localNav-05.gif

localNav-05.gif

3263 ms

localNav-06.gif

localNav-06.gif

3297 ms

Accessibility Review

k-rooms.jp accessibility score

90

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 [lang] attribute

Best Practices

k-rooms.jp best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

k-rooms.jp SEO score

75

Search Engine Optimization Advices

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 K-rooms.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 K-rooms.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

k-rooms.jp

Open Graph description is not detected on the main page of K Rooms. 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: