Tools & Wizards About Us
rotco.jp screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

rotco.jp

rotco.jp

Page Load Speed

18.3 sec in total

First Response

739 ms

Resources Loaded

16.9 sec

Page Rendered

674 ms

rotco.jp screenshot

About Website

Click here to check amazing Rotco content for Japan. Otherwise, check out these important facts you probably never knew about rotco.jp

さまざまなジャンルのRSS更新速報とリンクをまとめたアンテナサイト。ログインするとマイアンテナがつくれます。

Visit rotco.jp

Key Findings

We analyzed Rotco.jp page load time and found that the first response time was 739 ms and then it took 17.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

rotco.jp performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

rotco.jp

739 ms

style.css

216 ms

user.css

364 ms

meerkat.css

378 ms

dcbdfab7a2e3864497fc58330eab7952

722 ms

Our browser made a total of 193 requests to load all elements on the main page. We found that 9% of them (17 requests) were addressed to the original Rotco.jp, 7% (14 requests) were made to Aladdin.genieesspv.jp and 6% (12 requests) were made to Cs.gssprt.jp. The less responsive or slowest element that took the longest time to load (6.6 sec) belongs to the original domain Rotco.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 383.1 kB (59%)

Content Size

648.2 kB

After Optimization

265.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rotco.jp main page is 648.2 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. 35% of websites need less resources to load. Javascripts take 477.5 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 53.9 kB

  • Original 64.7 kB
  • After minification 64.0 kB
  • After compression 10.8 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 53.9 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 373 B

  • Original 92.3 kB
  • After minification 91.9 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. Rotco images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 318.2 kB

  • Original 477.5 kB
  • After minification 473.7 kB
  • After compression 159.2 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 318.2 kB or 67% of the original size.

CSS Optimization

-77%

Potential reduce by 10.6 kB

  • Original 13.7 kB
  • After minification 10.4 kB
  • After compression 3.1 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. Rotco.jp needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 149 (89%)

Requests Now

167

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rotco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rotco.jp

rotco.jp

739 ms

style.css

style.css

216 ms

user.css

user.css

364 ms

meerkat.css

meerkat.css

378 ms

dcbdfab7a2e3864497fc58330eab7952

dcbdfab7a2e3864497fc58330eab7952

722 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

984 ms

jquery-ui.min.js

jquery-ui.min.js

6577 ms

jquery.tablesorter.min.js

jquery.tablesorter.min.js

594 ms

jquery.autopager-1.0.0.min.js

jquery.autopager-1.0.0.min.js

486 ms

scrolltopcontrol.js

scrolltopcontrol.js

538 ms

jquery.meerkat.1.3.js

jquery.meerkat.1.3.js

583 ms

rotco.min.js

rotco.min.js

673 ms

rotco.user.min.js

rotco.user.min.js

742 ms

sh.adingo.jp

sh.adingo.jp

647 ms

rank.php

rank.php

1783 ms

Script

Script

700 ms

btn_search.png

btn_search.png

807 ms

rranking.gif

rranking.gif

877 ms

bg.jpg

bg.jpg

1785 ms

bg_header.gif

bg_header.gif

536 ms

1.0.1.js

1.0.1.js

595 ms

1.0.0.js

1.0.0.js

264 ms

sync

sync

245 ms

dcbdfab7a2e3864497fc58330eab7952

dcbdfab7a2e3864497fc58330eab7952

502 ms

sync

sync

1529 ms

sync

sync

784 ms

push_sync

push_sync

418 ms

js1

js1

648 ms

ib

ib

239 ms

cookiesync

cookiesync

797 ms

1.1.0.js

1.1.0.js

226 ms

sync

sync

301 ms

js

js

657 ms

receive_sync

receive_sync

198 ms

jstag

jstag

179 ms

acj

acj

68 ms

ri

ri

52 ms

imp

imp

210 ms

a1033894.js

a1033894.js

483 ms

sync

sync

41 ms

jsk

jsk

466 ms

js1

js1

405 ms

gl0

gl0

193 ms

js

js

572 ms

cs

cs

216 ms

push_sync

push_sync

188 ms

sync

sync

768 ms

sync

sync

609 ms

pixel

pixel

563 ms

cm

cm

440 ms

sync

sync

217 ms

sync

sync

233 ms

c0bd6001e75213826778a4fea47395ec

c0bd6001e75213826778a4fea47395ec

263 ms

i.adingo.jp

i.adingo.jp

432 ms

acs

acs

233 ms

sync

sync

242 ms

acs

acs

427 ms

cs

cs

247 ms

acs

acs

292 ms

pixel

pixel

90 ms

412 ms

sync

sync

35 ms

gcs

gcs

410 ms

759 ms

pixel

pixel

150 ms

837 ms

cs

cs

193 ms

NewReceive

NewReceive

508 ms

up.png

up.png

263 ms

sh.adingo.jp

sh.adingo.jp

460 ms

c0bd6001e75213826778a4fea47395ec

c0bd6001e75213826778a4fea47395ec

242 ms

ad_1_inline_1.gif

ad_1_inline_1.gif

707 ms

cs

cs

208 ms

cs

cs

211 ms

close-x.png

close-x.png

204 ms

cs

cs

202 ms

ajs.php

ajs.php

103 ms

c0bd6001e75213826778a4fea47395ec

c0bd6001e75213826778a4fea47395ec

278 ms

pixel

pixel

45 ms

cs

cs

212 ms

561 ms

452 ms

yads.js

yads.js

686 ms

lg.php

lg.php

61 ms

match.aspx

match.aspx

38 ms

522 ms

js1

js1

482 ms

ib

ib

748 ms

sg.gif

sg.gif

486 ms

410 ms

js

js

569 ms

172 ms

yads_vimps-1.4.1.js

yads_vimps-1.4.1.js

646 ms

tag

tag

645 ms

yads-iframe.html

yads-iframe.html

220 ms

tag

tag

511 ms

ADTECH;cfp=1;rndc=1460134149;loc=100;target=_blank;key=key1+key2+key3+key4;grp=[group];misc=1460134149385

ADTECH;cfp=1;rndc=1460134149;loc=100;target=_blank;key=key1+key2+key3+key4;grp=[group];misc=1460134149385

395 ms

sh.adingo.jp

sh.adingo.jp

522 ms

show.php

show.php

470 ms

sync

sync

119 ms

pixel

pixel

99 ms

generic

generic

172 ms

oi

oi

503 ms

mapuser

mapuser

867 ms

mapuser

mapuser

371 ms

mapuser

mapuser

426 ms

generic

generic

103 ms

mapuser

mapuser

426 ms

mapuser

mapuser

365 ms

0.gif

0.gif

89 ms

push_sync

push_sync

742 ms

cm

cm

375 ms

sync

sync

59 ms

sync

sync

67 ms

sh.adingo.jp

sh.adingo.jp

508 ms

show.php

show.php

454 ms

i.adingo.jp

i.adingo.jp

423 ms

mapuser

mapuser

197 ms

200 ms

mapuser

mapuser

42 ms

sync

sync

226 ms

sync

sync

31 ms

a1033892.js

a1033892.js

535 ms

i.adingo.jp

i.adingo.jp

477 ms

246 ms

jsk

jsk

289 ms

ads.js

ads.js

99 ms

gl3

gl3

185 ms

mapuser

mapuser

154 ms

adcomp_pc.js

adcomp_pc.js

39 ms

sspcore_spot.js

sspcore_spot.js

327 ms

acs

acs

190 ms

acs

acs

3404 ms

acs

acs

3396 ms

acs

acs

359 ms

ssp_spot.ashx

ssp_spot.ashx

356 ms

acs

acs

271 ms

acs

acs

399 ms

sync

sync

21 ms

cs

cs

823 ms

acs

acs

430 ms

cs

cs

199 ms

set

set

481 ms

cs

cs

229 ms

adcore.js

adcore.js

28 ms

adcore_pc.js

adcore_pc.js

42 ms

cs

cs

228 ms

adcore_pc_inline.js

adcore_pc_inline.js

20 ms

ad_spot.aspx

ad_spot.aspx

3526 ms

usermatch

usermatch

27 ms

pixel.htm

pixel.htm

81 ms

52154.gif

52154.gif

25 ms

usermatch

usermatch

34 ms

pixel

pixel

32 ms

casale

casale

18 ms

pm_match

pm_match

68 ms

mapuser

mapuser

227 ms

pixel.htm

pixel.htm

90 ms

crum

crum

152 ms

ddc.htm

ddc.htm

249 ms

crum

crum

194 ms

crum

crum

194 ms

rum

rum

342 ms

rum

rum

221 ms

ddc.htm

ddc.htm

213 ms

rum

rum

144 ms

sync

sync

237 ms

Pug

Pug

176 ms

pixel

pixel

90 ms

sd

sd

158 ms

rtset

rtset

174 ms

u.php

u.php

156 ms

181 ms

mapuser

mapuser

77 ms

um

um

142 ms

rum

rum

359 ms

rum

rum

58 ms

crum

crum

67 ms

bd

bd

132 ms

tap.php

tap.php

57 ms

sync

sync

127 ms

merge

merge

58 ms

xrefid.xgi

xrefid.xgi

98 ms

cs

cs

716 ms

pixel.gif

pixel.gif

100 ms

69d1a87d242c3dbc63179315891a6993

69d1a87d242c3dbc63179315891a6993

96 ms

lr.gif

lr.gif

183 ms

bd

bd

100 ms

NAX8298048635883949512

NAX8298048635883949512

169 ms

sci

sci

2395 ms

style.css

style.css

207 ms

ad_creative.ashx

ad_creative.ashx

215 ms

bd

bd

30 ms

Accessibility Review

rotco.jp accessibility score

70

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best Practices

rotco.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

rotco.jp SEO score

86

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rotco.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Rotco.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

rotco.jp

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