Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 35

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

rarejob.com

オンライン英会話ならレアジョブ英会話 | 無料体験レッスン実施中

Page Load Speed

7.6 sec in total

First Response

565 ms

Resources Loaded

6.3 sec

Page Rendered

797 ms

rarejob.com screenshot

About Website

Click here to check amazing Rarejob content for Japan. Otherwise, check out these important facts you probably never knew about rarejob.com

オンライン英会話なら会員数100万人のレアジョブ英会話。英会話初心者でも安心!無料体験レッスンが2回お試しできます。PCやタブレット、スマホアプリでレッスンも可能。「日常英会話」「ビジネス英会話」「発音」等、様々な教材で学べます。

Visit rarejob.com

Key Findings

We analyzed Rarejob.com page load time and found that the first response time was 565 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

rarejob.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value7.1 s

30/100

10%

TBT (Total Blocking Time)

Value3,440 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

rarejob.com

565 ms

www.rarejob.com

1901 ms

dc.js

73 ms

gtm.js

102 ms

adlpo.js

1068 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 8% of them (12 requests) were addressed to the original Rarejob.com, 45% (66 requests) were made to D1atgierv9op2.cloudfront.net and 11% (16 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Rarejob.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 193.1 kB (10%)

Content Size

1.9 MB

After Optimization

1.7 MB

In fact, the total size of Rarejob.com main page is 1.9 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 48.9 kB

  • Original 66.0 kB
  • After minification 63.1 kB
  • After compression 17.1 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 48.9 kB or 74% of the original size.

Image Optimization

-3%

Potential reduce by 56.5 kB

  • Original 1.6 MB
  • After minification 1.6 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. Rarejob images are well optimized though.

JavaScript Optimization

-43%

Potential reduce by 53.8 kB

  • Original 125.6 kB
  • After minification 115.1 kB
  • After compression 71.8 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 53.8 kB or 43% of the original size.

CSS Optimization

-83%

Potential reduce by 33.9 kB

  • Original 41.0 kB
  • After minification 32.5 kB
  • After compression 7.1 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. Rarejob.com needs all CSS files to be minified and compressed as it can save up to 33.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (30%)

Requests Now

142

After Optimization

100

The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rarejob. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rarejob.com accessibility score

35

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

rarejob.com best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

rarejob.com SEO score

92

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

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

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