Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

roc.co.jp

【株式会社ロック】山形県鶴岡市,酒田市,三川町の不動産情報・不動産賃貸・不動産売買・住宅情報はROCにお任せください!

Page Load Speed

12.5 sec in total

First Response

2.1 sec

Resources Loaded

10.2 sec

Page Rendered

264 ms

About Website

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

山形県鶴岡市、酒田市、三川町のアパート・戸建ての賃貸や土地建物の売買、分譲地開発や資産活用など、不動産の事ならROCにお任せ下さい。土地建物をお探しの方、賃貸経営をお考えの方、ご売却・お住み替えのお考えの方など、不動産に関する様々なご相談に対応いたします。

Visit roc.co.jp

Key Findings

We analyzed Roc.co.jp page load time and found that the first response time was 2.1 sec and then it took 10.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

roc.co.jp performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.284

42/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

www.roc.co.jp

2081 ms

style.css

829 ms

jquery.js

1025 ms

jquery.sudoSlider.js

546 ms

rollover.js

364 ms

Our browser made a total of 129 requests to load all elements on the main page. We found that 94% of them (121 requests) were addressed to the original Roc.co.jp, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Roc.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 221.3 kB (14%)

Content Size

1.6 MB

After Optimization

1.4 MB

In fact, the total size of Roc.co.jp main page is 1.6 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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 43.9 kB

  • Original 53.9 kB
  • After minification 49.7 kB
  • After compression 10.1 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. 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 43.9 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 73.7 kB

  • Original 1.4 MB
  • After minification 1.3 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. Roc images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 63.2 kB

  • Original 118.8 kB
  • After minification 118.1 kB
  • After compression 55.5 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 63.2 kB or 53% of the original size.

CSS Optimization

-87%

Potential reduce by 40.5 kB

  • Original 46.7 kB
  • After minification 36.8 kB
  • After compression 6.2 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. Roc.co.jp needs all CSS files to be minified and compressed as it can save up to 40.5 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 55 (43%)

Requests Now

127

After Optimization

72

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

roc.co.jp accessibility score

97

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 input fields do not have accessible names

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

roc.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

SEO Factors

roc.co.jp SEO score

99

Search Engine Optimization Advices

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 Roc.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 Roc.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 Roc. 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: