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name

value

score

weighting

FCP (First Contentful Paint)

Value8.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.5 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value10,200 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.045

99/100

15%

TTI (Time to Interactive)

Value33.7 s

0/100

10%

princehotels.co.jp

1298 ms

stylesheet.jsp

549 ms

stylesheet.jsp

393 ms

script.jsp

1827 ms

s_code.js

286 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 89% of them (122 requests) were addressed to the original Princehotels.co.jp, 2% (3 requests) were made to Seibuholdings.co.jp and 2% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (10.6 sec) belongs to the original domain Princehotels.co.jp.

Content Size

3.5 MB

After Optimization

3.1 MB

In fact, the total size of Princehotels.co.jp main page is 3.5 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. 30% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 70.2 kB

Original 85.2 kB
After minification 73.0 kB
After compression 15.0 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 12.3 kB, which is 14% 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 70.2 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 214.0 kB

Original 3.1 MB
After minification 2.9 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. Princehotels images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 99.6 kB

Original 190.4 kB
After minification 183.8 kB
After compression 90.8 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 99.6 kB or 52% of the original size.

CSS Optimization

-80%

Potential reduce by 74.5 kB

Original 92.9 kB
After minification 81.1 kB
After compression 18.5 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. Princehotels.co.jp needs all CSS files to be minified and compressed as it can save up to 74.5 kB or 80% of the original size.

Requests Now

134

After Optimization

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Princehotels. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 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

[id] attributes on active, focusable elements are not unique

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA IDs are not unique

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

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

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Princehotels.co.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 Princehotels.co.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

princehotels.co.jp

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

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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

princehotels.co.jp

stylesheet.jsp

stylesheet.jsp

script.jsp

s_code.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

princehotels.co.jp

stylesheet.jsp

stylesheet.jsp

script.jsp

s_code.js

conversion.js

s_retargeting.js

chain.png

phone.gif

brand_seibu.gif

bg02.gif

freesearch.gif

bg01.gif

bg02.gif

bg03.gif

button02.png

button03.png

label01.png

label02.png

label03.png

label07.png

label08.png

label09.png

label10.png

label11.png

label12.png

reservation_block.png

bg01.jpg

bg02.jpg

button.gif

bg03.gif

arrow.gif

newwin.gif

recommended_current.png

hotel_area.png

hotel_list.png

campaign.png

all.gif

ga.js

__utm.gif

search_tool_n1.js

s65828000635374

chain.json

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