Access trecasa.co.jp. 東京都,神奈川県の自然素材の家,注文住宅なら自然素材工房トレカーサ工事へ

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value800 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.234

53/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

trecasa.co.jp

586 ms

trecasa.co.jp

742 ms

www.trecasa.co.jp

525 ms

www.trecasa.co.jp

858 ms

facebox.css

175 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 93% of them (51 requests) were addressed to the original Trecasa.co.jp, 4% (2 requests) were made to Googletagmanager.com and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Trecasa.co.jp.

Content Size

1.9 MB

After Optimization

1.8 MB

In fact, the total size of Trecasa.co.jp 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. 30% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 15.5 kB

Original 21.2 kB
After minification 19.8 kB
After compression 5.7 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 15.5 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 37.1 kB

Original 1.8 MB
After minification 1.7 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. Trecasa images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 50.2 kB

Original 98.5 kB
After minification 98.5 kB
After compression 48.4 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 50.2 kB or 51% of the original size.

CSS Optimization

-48%

Potential reduce by 2.4 kB

Original 5.0 kB
After minification 4.7 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. Trecasa.co.jp needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 48% of the original size.

Requests Now

After Optimization

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trecasa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

[role]s do not have all required [aria-*] attributes

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

Form elements do not have associated labels

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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 Trecasa.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 Trecasa.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

trecasa.co.jp

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

東京都,神奈川県の自然素材の家,注文住宅なら自然素材工房トレカーサ工事へ

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

trecasa.co.jp

trecasa.co.jp

www.trecasa.co.jp

www.trecasa.co.jp

facebox.css

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

trecasa.co.jp

trecasa.co.jp

www.trecasa.co.jp

www.trecasa.co.jp

facebox.css

home0017714001604305098.css

style.css

sites.css

sidebar_left.css

pages.css

background0668183001718585216.css

whole0261773001587092217.css

pagenavi-css.css

swfobject.js

jquery.js

facebox.js

alphafilter.js

js

js

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header_btn.jpg

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indexbar_l.png

indexbar_ss.png

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side_contents.jpg

side_contets_btn.jpg

side_information.jpg