Access lifeboat.jp. ライフボート - パソコンを快適に、安全に、システムユーティリティやセキュリティツールの企画、販売

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.025

100/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

lifeboat.jp

733 ms

layout.css

486 ms

jquery.bxslider.css

359 ms

jquery.min.js

34 ms

cookie.js

370 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 92% of them (56 requests) were addressed to the original Lifeboat.jp, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Lifeboat.jp.

Content Size

1.5 MB

After Optimization

1.1 MB

In fact, the total size of Lifeboat.jp main page is 1.5 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. 35% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 19.6 kB

Original 24.4 kB
After minification 20.1 kB
After compression 4.8 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 4.3 kB, which is 18% 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 19.6 kB or 80% of the original size.

Image Optimization

-22%

Potential reduce by 269.7 kB

Original 1.2 MB
After minification 959.2 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, Lifeboat needs image optimization as it can save up to 269.7 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 89.9 kB

Original 168.5 kB
After minification 161.1 kB
After compression 78.6 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 89.9 kB or 53% of the original size.

CSS Optimization

-82%

Potential reduce by 41.6 kB

Original 50.8 kB
After minification 39.1 kB
After compression 9.2 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. Lifeboat.jp needs all CSS files to be minified and compressed as it can save up to 41.6 kB or 82% of the original size.

Requests Now

After Optimization

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lifeboat. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lifeboat.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Lifeboat.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

lifeboat.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

ライフボート - パソコンを快適に、安全に、システムユーティリティやセキュリティツールの企画、販売

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

lifeboat.jp

layout.css

jquery.bxslider.css

jquery.min.js

cookie.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lifeboat.jp

layout.css

jquery.bxslider.css

jquery.min.js

cookie.js

fontchange.js

rollover.js

cycle.js

jquery.bxslider.min.js

tooltip.js

prodslist.js

2nd.css

tabs.css

form.css

thickbox.css

logo.jpg

font_s.png

font_m.png

font_l.png

gnavi01.jpg

gnavi02.jpg

gnavi03.jpg

gnavi04.jpg

gnavi05.jpg

gnavi06.jpg

gnavi07.jpg

slide.jpg

AL2P.jpg

tb2016.jpg

CB2016.jpg

SPP.jpg

cxtv.jpg

tit_user.jpg

logo_uhl4_s.jpg

logo_alog2_s.jpg

logo_ib11s_s.jpg

logo_pw15s_s.jpg

logo_ib11_pro.jpg

tb2016_title_s.jpg

spp_logo_ss.jpg

edp1p_title_s.jpg

logo_cxtv_s.jpg

logo_pct_s.jpg