Tools & Wizards About Us

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

resta.co.jp

札幌市の賃貸・売買なら株式会社RESTA

Page Load Speed

6.5 sec in total

First Response

1 sec

Resources Loaded

5.2 sec

Page Rendered

207 ms

About Website

Visit resta.co.jp now to see the best up-to-date Resta content and also check out these interesting facts you probably never knew about resta.co.jp

北海道札幌市の賃貸・売買なら株式会社RESTA（レスタ）におまかせ！地域密着の当社に、ぜひご相談ください！

Visit resta.co.jp

Key Findings

We analyzed Resta.co.jp page load time and found that the first response time was 1 sec and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

resta.co.jp performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value19.0 s

0/100

10%

TBT (Total Blocking Time)

Value940 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.827

4/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

www.resta.co.jp

1022 ms

slick.css

176 ms

style.css

528 ms

color-red.css

500 ms

freeword.css

501 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 71% of them (34 requests) were addressed to the original Resta.co.jp, 8% (4 requests) were made to Platform.twitter.com and 6% (3 requests) were made to Syndication.twitter.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Resta.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 44.8 kB (6%)

Content Size

748.6 kB

After Optimization

703.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Resta.co.jp main page is 748.6 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. 25% of websites need less resources to load. Images take 539.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 25.5 kB

  • Original 32.5 kB
  • After minification 28.7 kB
  • After compression 7.1 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 3.9 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 25.5 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 12.7 kB

  • Original 539.0 kB
  • After minification 526.3 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. Resta images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 6.5 kB

  • Original 149.8 kB
  • After minification 149.8 kB
  • After compression 143.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 187 B

  • Original 27.2 kB
  • After minification 27.2 kB
  • After compression 27.1 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. Resta.co.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (57%)

Requests Now

46

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Resta. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

resta.co.jp accessibility score

78

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

resta.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

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

resta.co.jp SEO score

90

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

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 Resta.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 Resta.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

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