Tools & Wizards About Us
renbiz.com screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

renbiz.com

ラピッドテレコム　IP-PBXとクラウドPBXとビジネスホンの販売と保守サポートサービスのご紹介 – ★創業22年★進歩的なビジネスホン・PBX屋を目指してます_安価な保守提供を重視、リモートから派遣訪問も。最新のスマフォ内線も安心サポート、通信の力で中小企業を支えたいです★★★★無料相談 0800...

Page Load Speed

11.1 sec in total

First Response

2.7 sec

Resources Loaded

7.6 sec

Page Rendered

880 ms

renbiz.com screenshot

About Website

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

クラウドPBXやスマートフォンを内線として利用するIP-PBXやビジネスホンReuse品を、最長5年の安心無料保証付で安価に、東京・渋谷から全国へ提供する、レンビジドットコムの中古ビジネスフォン　ラピッドテレコムが提供し、ひかり電話 回線も完全対応、ビジネスフォン工事もお任せください。

Visit renbiz.com

Key Findings

We analyzed Renbiz.com page load time and found that the first response time was 2.7 sec and then it took 8.5 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

renbiz.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.182

67/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

renbiz.com

2652 ms

typography2.php

1724 ms

gzip.php

1947 ms

gzip.php

1429 ms

gzip.php

1448 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 89% of them (33 requests) were addressed to the original Renbiz.com, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Renbiz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 438.5 kB (28%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Renbiz.com main page is 1.6 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. 25% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 38.5 kB

  • Original 52.0 kB
  • After minification 49.3 kB
  • After compression 13.5 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 38.5 kB or 74% of the original size.

Image Optimization

-18%

Potential reduce by 231.9 kB

  • Original 1.3 MB
  • After minification 1.0 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. Obviously, Renbiz needs image optimization as it can save up to 231.9 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 168.2 kB

  • Original 251.2 kB
  • After minification 251.2 kB
  • After compression 83.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 168.2 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (23%)

Requests Now

35

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Renbiz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

renbiz.com

renbiz.com

2652 ms

typography2.php

typography2.php

1724 ms

gzip.php

gzip.php

1947 ms

gzip.php

gzip.php

1429 ms

gzip.php

gzip.php

1448 ms

gzip.php

gzip.php

1646 ms

gzip.php

gzip.php

2219 ms

gzip.php

gzip.php

2012 ms

gzip.php

gzip.php

2007 ms

css

css

76 ms

logokaisyanodennwa.png

logokaisyanodennwa.png

394 ms

ciaj_2015.png

ciaj_2015.png

182 ms

logo_2015.png

logo_2015.png

521 ms

TOP-RENBIZ02.png

TOP-RENBIZ02.png

2121 ms

tsuwateigaku01.jpg

tsuwateigaku01.jpg

777 ms

sumadebakatuyou.jpg

sumadebakatuyou.jpg

1417 ms

alert6-thumbnail2.jpg

alert6-thumbnail2.jpg

728 ms

ACTSETTOP.jpg

ACTSETTOP.jpg

1862 ms

pin.png

pin.png

721 ms

ERIA_BUTIGIRE2_convert_20140413061322.jpg

ERIA_BUTIGIRE2_convert_20140413061322.jpg

1077 ms

heart.png

heart.png

909 ms

pbx1.jpg

pbx1.jpg

969 ms

CCI20121222_00000telecomi_convert_20121222104213.jpg

CCI20121222_00000telecomi_convert_20121222104213.jpg

1633 ms

riaikurutsushin_convert_20130105114851.jpg

riaikurutsushin_convert_20130105114851.jpg

1341 ms

risaikurutsushin2_convert_20130105115549.jpg

risaikurutsushin2_convert_20130105115549.jpg

1951 ms

mottainai.gif

mottainai.gif

1532 ms

blo_1a.png

blo_1a.png

1586 ms

japan.jpg

japan.jpg

1721 ms

arrow_under.png

arrow_under.png

1760 ms

hamada.png

hamada.png

2528 ms

info.png

info.png

1907 ms

support.png

support.png

2106 ms

040710jimus_013.jpg

040710jimus_013.jpg

2026 ms

Zd2E9abXLFGSr9G3YK2MsFzqCfRpIA3W6ypxnPISCPA.woff

Zd2E9abXLFGSr9G3YK2MsFzqCfRpIA3W6ypxnPISCPA.woff

98 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

3039 ms

analytics.js

analytics.js

83 ms

collect

collect

113 ms

Accessibility Review

renbiz.com accessibility score

96

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

renbiz.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

renbiz.com SEO score

89

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 Renbiz.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 Renbiz.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

renbiz.com

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