Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 99

    SEO

    Google-friendlier than
    95% of websites

levtech.jp

レバテック | エンジニア&クリエイターの求人・案件情報サイト

Page Load Speed

3.8 sec in total

First Response

517 ms

Resources Loaded

3.1 sec

Page Rendered

217 ms

levtech.jp screenshot

About Website

Welcome to levtech.jp homepage info - get ready to check Levtech best content for Japan right away, or after learning these important things about levtech.jp

レバテックが運営するエンジニア&クリエイターの求人・案件情報サイト【レバテック】。転職支援やフリーランス向け案件への参画サポート、業界ニュースの配信、勉強会などを通じて、エンジニア&クリエイターの成長を応援する一番身近な相談相手を目指します。

Visit levtech.jp

Key Findings

We analyzed Levtech.jp page load time and found that the first response time was 517 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

levtech.jp performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value900 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

levtech.jp

517 ms

levtech.jp

806 ms

common.css

162 ms

index.css

321 ms

jquery.min.js

64 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 60% of them (26 requests) were addressed to the original Levtech.jp, 7% (3 requests) were made to Stats.g.doubleclick.net and 5% (2 requests) were made to Dev.visualwebsiteoptimizer.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Levtech.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 121.2 kB (31%)

Content Size

391.5 kB

After Optimization

270.3 kB

In fact, the total size of Levtech.jp main page is 391.5 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. 15% of websites need less resources to load. Images take 224.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 19.3 kB

  • Original 24.5 kB
  • After minification 19.1 kB
  • After compression 5.3 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 5.4 kB, which is 22% 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 19.3 kB or 79% of the original size.

Image Optimization

-14%

Potential reduce by 30.4 kB

  • Original 224.9 kB
  • After minification 194.5 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. Obviously, Levtech needs image optimization as it can save up to 30.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-47%

Potential reduce by 59.1 kB

  • Original 127.0 kB
  • After minification 126.3 kB
  • After compression 67.9 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 59.1 kB or 47% of the original size.

CSS Optimization

-83%

Potential reduce by 12.5 kB

  • Original 15.1 kB
  • After minification 10.3 kB
  • After compression 2.6 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. Levtech.jp needs all CSS files to be minified and compressed as it can save up to 12.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (21%)

Requests Now

39

After Optimization

31

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Levtech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

levtech.jp accessibility score

77

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.

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

levtech.jp best practices score

75

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

High

Page has valid source maps

SEO Factors

levtech.jp SEO score

99

Search Engine Optimization Advices

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 Levtech.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 Levtech.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 Levtech. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: