Report Summary

  • 20

    Performance

    Renders faster than
    38% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 90% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

alsok.co.jp

防犯とセキュリティ対策の会社 ALSOK(アルソック)

Page Load Speed

11 sec in total

First Response

1.2 sec

Resources Loaded

7.6 sec

Page Rendered

2.2 sec

alsok.co.jp screenshot

About Website

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

ご自宅の防犯「ホームセキュリティ」やオフィスの警備、防災、情報セキュリティまで。身の回りのセキュリティ対策は防犯のプロALSOKにお任せください!信頼の実績と対応力で生活に安全安心を提供、1分1秒でも速く駆けつけます!

Visit alsok.co.jp

Key Findings

We analyzed Alsok.co.jp page load time and found that the first response time was 1.2 sec and then it took 9.8 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

alsok.co.jp performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value2,590 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

alsok.co.jp

1161 ms

swfobject.js

670 ms

top.js

361 ms

jquery.min.js

1095 ms

n_rollover.js

373 ms

Our browser made a total of 180 requests to load all elements on the main page. We found that 67% of them (121 requests) were addressed to the original Alsok.co.jp, 11% (20 requests) were made to Static.xx.fbcdn.net and 4% (7 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Alsok.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 772.0 kB (32%)

Content Size

2.4 MB

After Optimization

1.6 MB

In fact, the total size of Alsok.co.jp main page is 2.4 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 49.3 kB

  • Original 61.6 kB
  • After minification 54.4 kB
  • After compression 12.3 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 7.3 kB, which is 12% 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 49.3 kB or 80% of the original size.

Image Optimization

-12%

Potential reduce by 190.3 kB

  • Original 1.6 MB
  • After minification 1.4 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, ALSOK needs image optimization as it can save up to 190.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 341.1 kB

  • Original 491.9 kB
  • After minification 451.2 kB
  • After compression 150.7 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 341.1 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 191.4 kB

  • Original 223.2 kB
  • After minification 157.9 kB
  • After compression 31.8 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. Alsok.co.jp needs all CSS files to be minified and compressed as it can save up to 191.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 88 (49%)

Requests Now

178

After Optimization

90

The browser has sent 178 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ALSOK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

alsok.co.jp 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

alsok.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

alsok.co.jp SEO score

93

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alsok.co.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 Alsok.co.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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