Tools & Wizards About Us
roc.co.jp screenshot

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

roc.co.jp screenshot

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 253.2 kB (15%)

Content Size

1.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

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

-63%

Potential reduce by 95.2 kB

  • Original 150.7 kB
  • After minification 150.0 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 95.2 kB or 63% 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

  • AJAX
  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

www.roc.co.jp

www.roc.co.jp

2081 ms

style.css

style.css

829 ms

jquery.js

jquery.js

1025 ms

jquery.sudoSlider.js

jquery.sudoSlider.js

546 ms

rollover.js

rollover.js

364 ms

jscript.js

jscript.js

376 ms

scroll.js

scroll.js

543 ms

badge.js

badge.js

104 ms

analytics.js

analytics.js

55 ms

background.gif

background.gif

185 ms

logo.gif

logo.gif

377 ms

g_menu1.gif

g_menu1.gif

186 ms

g_menu2.gif

g_menu2.gif

173 ms

g_menu3.gif

g_menu3.gif

184 ms

g_menu8.gif

g_menu8.gif

174 ms

g_menu5.gif

g_menu5.gif

336 ms

g_menu4.gif

g_menu4.gif

345 ms

h_menu1.gif

h_menu1.gif

366 ms

h_menu2.gif

h_menu2.gif

366 ms

h_menu3.gif

h_menu3.gif

367 ms

header_tel.gif

header_tel.gif

501 ms

slider_bg.gif

slider_bg.gif

515 ms

top_151213.jpg

top_151213.jpg

1634 ms

title_0011.gif

title_0011.gif

548 ms

button.gif

button.gif

549 ms

top_sjt_151216.jpg

top_sjt_151216.jpg

1873 ms

title_0031.gif

title_0031.gif

668 ms

roc_sell.jpg

roc_sell.jpg

1538 ms

title_002.gif

title_002.gif

731 ms

img_top_request.jpg

img_top_request.jpg

2004 ms

title_00B.gif

title_00B.gif

834 ms

top_104.jpg

top_104.jpg

2000 ms

title_004.jpg

title_004.jpg

1496 ms

top_151213-60x60.jpg

top_151213-60x60.jpg

1664 ms

top_sjt_151216-60x60.jpg

top_sjt_151216-60x60.jpg

2016 ms

roc_sell-60x60.jpg

roc_sell-60x60.jpg

1987 ms

img_top_request-60x60.jpg

img_top_request-60x60.jpg

1830 ms

top_104-60x60.jpg

top_104-60x60.jpg

1998 ms

index_headline1.gif

index_headline1.gif

2062 ms

house_back1.gif

house_back1.gif

2165 ms

P1040211-138x103.jpg

P1040211-138x103.jpg

2328 ms

chintai_tab6.gif

chintai_tab6.gif

2182 ms

house_info_back1_top.gif

house_info_back1_top.gif

2184 ms

house_info_back1_bottom.gif

house_info_back1_bottom.gif

2182 ms

button1.gif

button1.gif

2215 ms

sdk.js

sdk.js

76 ms

collect

collect

14 ms

collect

collect

78 ms

122 ms

xd_arbiter.php

xd_arbiter.php

72 ms

xd_arbiter.php

xd_arbiter.php

129 ms

gaikan11-138x103.jpg

gaikan11-138x103.jpg

2348 ms

021aaef97a1d5d3025d5fb587896e04b-138x103.jpg

021aaef97a1d5d3025d5fb587896e04b-138x103.jpg

2193 ms

637be657d0e4e214064d9d2d7fce24ab-138x103.jpg

637be657d0e4e214064d9d2d7fce24ab-138x103.jpg

2334 ms

P1040262-138x103.jpg

P1040262-138x103.jpg

2184 ms

P1040064-138x103.jpg

P1040064-138x103.jpg

2444 ms

P1070530-138x103.jpg

P1070530-138x103.jpg

2329 ms

index_more1.gif

index_more1.gif

2207 ms

index_headline2.gif

index_headline2.gif

2188 ms

bunjyochi_tab1.gif

bunjyochi_tab1.gif

2317 ms

house_back2.gif

house_back2.gif

2331 ms

pers1-116x87.jpg

pers1-116x87.jpg

2540 ms

house_info_back2.gif

house_info_back2.gif

2234 ms

button2.gif

button2.gif

2304 ms

gaikan14-116x87.jpg

gaikan14-116x87.jpg

2282 ms

gaikan-116x87.jpg

gaikan-116x87.jpg

2301 ms

gaikan11-116x87.jpg

gaikan11-116x87.jpg

2208 ms

index_more2.gif

index_more2.gif

2187 ms

index_headline3.gif

index_headline3.gif

2172 ms

jigyo_tab1.gif

jigyo_tab1.gif

1499 ms

gaikan1-116x87.jpg

gaikan1-116x87.jpg

1480 ms

gaikan1-116x87.jpg

gaikan1-116x87.jpg

1419 ms

gaikan15-116x87.jpg

gaikan15-116x87.jpg

1433 ms

mikawa1-116x87.jpg

mikawa1-116x87.jpg

1269 ms

index_more3.gif

index_more3.gif

1290 ms

btn_chintai_guide.jpg

btn_chintai_guide.jpg

2707 ms

btn_fudousan_seller.jpg

btn_fudousan_seller.jpg

1716 ms

btn_fudousan_buyer.jpg

btn_fudousan_buyer.jpg

1933 ms

index_banner_top.gif

index_banner_top.gif

2040 ms

btn_inquiry_borr.jpg

btn_inquiry_borr.jpg

1630 ms

btn_inquiry_rent.jpg

btn_inquiry_rent.jpg

1597 ms

btn_inquiry_buy.jpg

btn_inquiry_buy.jpg

2026 ms

btn_inquiry_sell.jpg

btn_inquiry_sell.jpg

1807 ms

index_side_top.gif

index_side_top.gif

1700 ms

index_side_side.gif

index_side_side.gif

1867 ms

dot1.gif

dot1.gif

1862 ms

index_side_bottom.gif

index_side_bottom.gif

1830 ms

mikawasjt_banner.jpg

mikawasjt_banner.jpg

2405 ms

banner_roc.gif

banner_roc.gif

2220 ms

gakusei.jpg

gakusei.jpg

2130 ms

Japanesestyle.jpg

Japanesestyle.jpg

2139 ms

side_tel.gif

side_tel.gif

2009 ms

footer_background.gif

footer_background.gif

2191 ms

f_menu1.gif

f_menu1.gif

2129 ms

f_menu2.gif

f_menu2.gif

2162 ms

f_menu3.gif

f_menu3.gif

2142 ms

f_menu0.gif

f_menu0.gif

2339 ms

f_menu5.gif

f_menu5.gif

2192 ms

f_menu4.gif

f_menu4.gif

2107 ms

f_menu8.gif

f_menu8.gif

2124 ms

f_menu9.gif

f_menu9.gif

2153 ms

footer_logo.gif

footer_logo.gif

2118 ms

copyright.gif

copyright.gif

2177 ms

return_top.gif

return_top.gif

2190 ms

right_arrow.gif

right_arrow.gif

2141 ms

left_arrow.gif

left_arrow.gif

2153 ms

g_menu1_on.gif

g_menu1_on.gif

2164 ms

g_menu2_on.gif

g_menu2_on.gif

2154 ms

g_menu3_on.gif

g_menu3_on.gif

2160 ms

g_menu8_on.gif

g_menu8_on.gif

2191 ms

g_menu5_on.gif

g_menu5_on.gif

2156 ms

g_menu4_on.gif

g_menu4_on.gif

1677 ms

h_menu1_on.gif

h_menu1_on.gif

1697 ms

h_menu2_on.gif

h_menu2_on.gif

1661 ms

h_menu3_on.gif

h_menu3_on.gif

1538 ms

button1_on.gif

button1_on.gif

1540 ms

index_more1_on.gif

index_more1_on.gif

1510 ms

button2_on.gif

button2_on.gif

1447 ms

index_more2_on.gif

index_more2_on.gif

1484 ms

index_more3_on.gif

index_more3_on.gif

1437 ms

f_menu1_on.gif

f_menu1_on.gif

1430 ms

f_menu2_on.gif

f_menu2_on.gif

1465 ms

f_menu3_on.gif

f_menu3_on.gif

1101 ms

f_menu0_on.gif

f_menu0_on.gif

1097 ms

f_menu5_on.gif

f_menu5_on.gif

1070 ms

f_menu4_on.gif

f_menu4_on.gif

1067 ms

f_menu8_on.gif

f_menu8_on.gif

1062 ms

f_menu9_on.gif

f_menu9_on.gif

1082 ms

return_top_on.gif

return_top_on.gif

1085 ms

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

roc.co.jp

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: