Tools & Wizards About Us
251901.net screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

251901.net

美容外科　レーザー脱毛　東京皮膚科・形成外科　銀座院

Page Load Speed

18.1 sec in total

First Response

588 ms

Resources Loaded

16.2 sec

Page Rendered

1.4 sec

251901.net screenshot

About Website

Visit 251901.net now to see the best up-to-date 251901 content for Japan and also check out these interesting facts you probably never knew about 251901.net

美容外科・美容皮膚科のことなら東京皮膚科形成外科。形成外科認定医でアンチエイジング外科・美容再生研究会の理事も努める医師が納得の美容医療をご提供します。東京の銀座駅、東銀座駅、銀座一丁目駅から近くの皮膚科、美容皮膚科、形成外科、エイジングケアクリニック。

Visit 251901.net

Key Findings

We analyzed 251901.net page load time and found that the first response time was 588 ms and then it took 17.5 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

251901.net performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.471

18/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

251901.net

588 ms

www.251901.net

2134 ms

searchforms.css

356 ms

toolbar.css

530 ms

style.css

1052 ms

Our browser made a total of 170 requests to load all elements on the main page. We found that 62% of them (105 requests) were addressed to the original 251901.net, 8% (14 requests) were made to Apis.google.com and 5% (9 requests) were made to Calendar.google.com. The less responsive or slowest element that took the longest time to load (9.5 sec) belongs to the original domain 251901.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (12%)

Content Size

9.3 MB

After Optimization

8.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 251901.net main page is 9.3 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 7.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 84.5 kB

  • Original 103.7 kB
  • After minification 89.5 kB
  • After compression 19.3 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 14.3 kB, which is 14% 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 84.5 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 151.5 kB

  • Original 7.9 MB
  • After minification 7.7 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. 251901 images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 622.4 kB

  • Original 984.8 kB
  • After minification 865.4 kB
  • After compression 362.4 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 622.4 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 310.1 kB

  • Original 371.7 kB
  • After minification 357.8 kB
  • After compression 61.6 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. 251901.net needs all CSS files to be minified and compressed as it can save up to 310.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 70 (43%)

Requests Now

162

After Optimization

92

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 162 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 251901. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 47 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

251901.net

251901.net

588 ms

www.251901.net

www.251901.net

2134 ms

searchforms.css

searchforms.css

356 ms

toolbar.css

toolbar.css

530 ms

style.css

style.css

1052 ms

jquery.js

jquery.js

1311 ms

jquery-migrate.min.js

jquery-migrate.min.js

572 ms

flags.js

flags.js

521 ms

toolbar.js

toolbar.js

900 ms

load-toolbar.js

load-toolbar.js

703 ms

jquery-2.js

jquery-2.js

1945 ms

demo.css

demo.css

698 ms

slide.js

slide.js

880 ms

style.css

style.css

1228 ms

jsapi

jsapi

19 ms

jquery-contained-sticky-scroll.js

jquery-contained-sticky-scroll.js

926 ms

jquery.droppy.js

jquery.droppy.js

1047 ms

feedimg.js

feedimg.js

1050 ms

dropdown.js

dropdown.js

1110 ms

function.js

function.js

1218 ms

element.js

element.js

36 ms

jquery.ui.core.min.js

jquery.ui.core.min.js

660 ms

jquery.ui.widget.min.js

jquery.ui.widget.min.js

746 ms

jquery.ui.position.min.js

jquery.ui.position.min.js

580 ms

jquery.ui.menu.min.js

jquery.ui.menu.min.js

828 ms

jquery.ui.autocomplete.min.js

jquery.ui.autocomplete.min.js

657 ms

jquery.ui.mouse.min.js

jquery.ui.mouse.min.js

769 ms

jquery.ui.sortable.min.js

jquery.ui.sortable.min.js

995 ms

dc.js

dc.js

98 ms

13 ms

default+en.css

default+en.css

2 ms

default+en.I.js

default+en.I.js

4 ms

logo.gif

logo.gif

760 ms

mqdefault.jpg

mqdefault.jpg

200 ms

mqdefault.jpg

mqdefault.jpg

198 ms

side_search_submit.gif

side_search_submit.gif

197 ms

head-tel03.gif

head-tel03.gif

197 ms

head-tel04.gif

head-tel04.gif

198 ms

head-tel05.gif

head-tel05.gif

198 ms

top_doctor-banner.jpg

top_doctor-banner.jpg

1252 ms

top-banner.jpg

top-banner.jpg

1704 ms

clotion.jpg

clotion.jpg

1235 ms

top_contact_txt.png

top_contact_txt.png

770 ms

top_img01.gif

top_img01.gif

413 ms

top_img02.gif

top_img02.gif

770 ms

top_img03.gif

top_img03.gif

783 ms

thum_top_doctor-banner.jpg

thum_top_doctor-banner.jpg

1155 ms

topbanner-tham09.jpg

topbanner-tham09.jpg

1319 ms

clotion-mini.jpg

clotion-mini.jpg

1334 ms

topbanner-tham08.jpg

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1425 ms

news_ttl.png

news_ttl.png

1406 ms

top_blog_ttl2.jpg

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1976 ms

top_blog_foot.gif

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1508 ms

201601_artmake.jpg

201601_artmake.jpg

2633 ms

dermadoc_pc.jpg

dermadoc_pc.jpg

2099 ms

201603_dermadoc.jpg

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1929 ms

recruit_bn_201506.jpg

recruit_bn_201506.jpg

2642 ms

eone_bn_201506.jpg

eone_bn_201506.jpg

2261 ms

youtube_ttl.png

youtube_ttl.png

2436 ms

youtube_btn.png

youtube_btn.png

2155 ms

130201youtube.jpg

130201youtube.jpg

3310 ms

top_syorei_ttl.png

top_syorei_ttl.png

2336 ms

001.jpg

001.jpg

3197 ms

002-2.jpg

002-2.jpg

3809 ms

06.png

06.png

3786 ms

02.png

02.png

4024 ms

top_menu01_ttl.gif

top_menu01_ttl.gif

3085 ms

menu01_btn01.gif

menu01_btn01.gif

3462 ms

menu01_btn06.gif

menu01_btn06.gif

3570 ms

menu01_btn04.gif

menu01_btn04.gif

3829 ms

mqdefault.jpg

mqdefault.jpg

52 ms

embed

embed

598 ms

W9VgwihZ48s

W9VgwihZ48s

261 ms

__utm.gif

__utm.gif

18 ms

menu01_btn05.gif

menu01_btn05.gif

3657 ms

top_menu02_ttl.gif

top_menu02_ttl.gif

3575 ms

menu02_btn01.gif

menu02_btn01.gif

3765 ms

plusone.js

plusone.js

66 ms

menu02_btn06.gif

menu02_btn06.gif

4123 ms

translateelement.css

translateelement.css

79 ms

main.js

main.js

85 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

20 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

39 ms

badge

badge

125 ms

WRd.js

WRd.js

27 ms

element_main.js

element_main.js

75 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

89 ms

www-embed-player.js

www-embed-player.js

123 ms

base.js

base.js

312 ms

postmessageRelay

postmessageRelay

164 ms

translate_24dp.png

translate_24dp.png

228 ms

l

l

223 ms

googlelogo_color_42x16dp.png

googlelogo_color_42x16dp.png

229 ms

rs=AGLTcCNwBglnRFJRg0mRD_l9WzbpnP29GQ

rs=AGLTcCNwBglnRFJRg0mRD_l9WzbpnP29GQ

63 ms

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

83 ms

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

125 ms

menu02_btn05.gif

menu02_btn05.gif

3567 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

269 ms

rpc:shindig_random.js

rpc:shindig_random.js

215 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

347 ms

dtpHsbgPEm2lVWciJZ0P-A.ttf

dtpHsbgPEm2lVWciJZ0P-A.ttf

393 ms

bdHGHleUa-ndQCOrdpfxfw.ttf

bdHGHleUa-ndQCOrdpfxfw.ttf

392 ms

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

164 ms

0992f33945a94632a64d2587cfa6f814embedcompiled_fastui.css

0992f33945a94632a64d2587cfa6f814embedcompiled_fastui.css

151 ms

0992f33945a94632a64d2587cfa6f814embedcompiled__en.js

0992f33945a94632a64d2587cfa6f814embedcompiled__en.js

177 ms

client.js

client.js

174 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

178 ms

ad_status.js

ad_status.js

180 ms

menu02_btn04.gif

menu02_btn04.gif

3248 ms

drcal_ttl.png

drcal_ttl.png

3273 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

147 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

146 ms

practice_tit.gif

practice_tit.gif

3376 ms

footer_entry.png

footer_entry.png

3572 ms

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

rs=AGLTcCPJ_Qx0HXwankZ8SJMM-SuxNwIccw

49 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

113 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

90 ms

postmessageRelay

postmessageRelay

48 ms

logo-plus.png

logo-plus.png

53 ms

googlelogo_color_46x16dp.png

googlelogo_color_46x16dp.png

52 ms

blank.gif

blank.gif

20 ms

menu_arrow_open.gif

menu_arrow_open.gif

8 ms

icon_print.gif

icon_print.gif

18 ms

btn_menu6.gif

btn_menu6.gif

32 ms

combined_v22.png

combined_v22.png

32 ms

doctor_side_banner_ttl.gif

doctor_side_banner_ttl.gif

3031 ms

proxy.html

proxy.html

52 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

3 ms

events

events

49 ms

events

events

83 ms

linkbanner_morikawa.jpg

linkbanner_morikawa.jpg

2972 ms

events

events

82 ms

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134 ms

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100 ms

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58 ms

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456 ms

link-banner06.jpg

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3360 ms

sakurai-blog-banner.jpg

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3577 ms

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3200 ms

linkbanner_okada.jpg

linkbanner_okada.jpg

3319 ms

banner-staff.jpg

banner-staff.jpg

3644 ms

side_ttl01.png

side_ttl01.png

3029 ms

side_ttl02.png

side_ttl02.png

3011 ms

side_media_ttl.png

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2964 ms

bst1.jpg

bst1.jpg

4903 ms

20150916162221.jpg

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6603 ms

JAAS_2014_1.jpg

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4992 ms

36aa31116cf4ce5d881328ab2782965b1.jpg

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side_media_ttl02.png

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3453 ms

201509031324321.jpg

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4215 ms

JAAS_11.jpg

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5857 ms

JSAPS_11.jpg

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9509 ms

JSPRS1.jpg

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5124 ms

link-banner04.gif

link-banner04.gif

3946 ms

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link-banner05.gif

4210 ms

link-banner01.gif

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3859 ms

jsprs.gif

jsprs.gif

3925 ms

jsap01.gif

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3909 ms

jsap02.gif

jsap02.gif

3922 ms

side_search_ttl.gif

side_search_ttl.gif

4210 ms

gn_bg.png

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4065 ms

top_search_ttl.gif

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4429 ms

gn_li_bg2.png

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4586 ms

top_contact_bg03.jpg

top_contact_bg03.jpg

5238 ms

divider.png

divider.png

5400 ms

footer_menu_bg.png

footer_menu_bg.png

4643 ms

tel-img.png

tel-img.png

5373 ms

flags.png

flags.png

5245 ms

__utm.gif

__utm.gif

12 ms

Gfeeds

Gfeeds

25 ms

Accessibility Review

251901.net accessibility score

74

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best Practices

251901.net 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

251901.net SEO score

84

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

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 251901.net 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 251901.net 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

251901.net

Open Graph data is detected on the main page of 251901. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: