Tools & Wizards About Us
tobikan.jp screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

tobikan.jp

東京都美術館

Page Load Speed

12.8 sec in total

First Response

541 ms

Resources Loaded

11.9 sec

Page Rendered

335 ms

tobikan.jp screenshot

About Website

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

東京都美術館の公式サイトです。「スコットランド国立美術館　THE GREATS　美の巨匠たち」、「ボストン美術館展　芸術×力」、「フィン・ユールとデンマークの椅子」、「展覧会 岡本太郎」など、多彩なラインナップで古今東西の美をお届けします。

Visit tobikan.jp

Key Findings

We analyzed Tobikan.jp page load time and found that the first response time was 541 ms and then it took 12.3 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

tobikan.jp performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value23.7 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.296

40/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

tobikan.jp

541 ms

www.tobikan.jp

860 ms

main.css

507 ms

small.css

346 ms

index.css

347 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 96% of them (127 requests) were addressed to the original Tobikan.jp, 2% (3 requests) were made to Google-analytics.com and 1% (1 request) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (4 sec) belongs to the original domain Tobikan.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 390.3 kB (12%)

Content Size

3.3 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tobikan.jp main page is 3.3 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. 30% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 146.5 kB

  • Original 167.1 kB
  • After minification 163.3 kB
  • After compression 20.5 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 146.5 kB or 88% of the original size.

Image Optimization

-3%

Potential reduce by 86.4 kB

  • Original 2.9 MB
  • After minification 2.8 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. Tobikan images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 117.8 kB

  • Original 185.6 kB
  • After minification 181.9 kB
  • After compression 67.7 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 117.8 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 39.6 kB

  • Original 46.7 kB
  • After minification 35.8 kB
  • After compression 7.1 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. Tobikan.jp needs all CSS files to be minified and compressed as it can save up to 39.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (29%)

Requests Now

130

After Optimization

92

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 130 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tobikan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tobikan.jp

tobikan.jp

541 ms

www.tobikan.jp

www.tobikan.jp

860 ms

main.css

main.css

507 ms

small.css

small.css

346 ms

index.css

index.css

347 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

876 ms

main.js

main.js

379 ms

header.js

header.js

677 ms

page.js

page.js

528 ms

index_v2.js

index_v2.js

545 ms

footer.js

footer.js

417 ms

analytics.js

analytics.js

77 ms

logo.png

logo.png

180 ms

lang_jp.png

lang_jp.png

337 ms

lang_en.png

lang_en.png

349 ms

lang_cn.png

lang_cn.png

350 ms

lang_tw.png

lang_tw.png

352 ms

lang_kr.png

lang_kr.png

377 ms

access_s.png

access_s.png

526 ms

weather_s.png

weather_s.png

727 ms

twitter_s.png

twitter_s.png

713 ms

facebook_s.png

facebook_s.png

715 ms

fontsize_s.png

fontsize_s.png

725 ms

fontsize_l.png

fontsize_l.png

727 ms

icon_dropdown.png

icon_dropdown.png

858 ms

btn_alert_close.png

btn_alert_close.png

1059 ms

pm243.png

pm243.png

1818 ms

pm244.jpg

pm244.jpg

1626 ms

pm245.jpg

pm245.jpg

1637 ms

pm246.jpg

pm246.jpg

1701 ms

pm248.jpg

pm248.jpg

1616 ms

pm247.jpg

pm247.jpg

1898 ms

pm33_1.png

pm33_1.png

2117 ms

pm36_L.png

pm36_L.png

1991 ms

pm36_R.png

pm36_R.png

2003 ms

2016_botticelli.jpg

2016_botticelli.jpg

2577 ms

icon_insession.png

icon_insession.png

2150 ms

2016_jakuchu_b.jpg

2016_jakuchu_b.jpg

2946 ms

icon_notice2.png

icon_notice2.png

2324 ms

2016_pompidou.jpg

2016_pompidou.jpg

2684 ms

2016_newwave_c.jpg

2016_newwave_c.jpg

2950 ms

ac_logo_tobira.png

ac_logo_tobira.png

2516 ms

img141016a.jpg

img141016a.jpg

2870 ms

thumb38.jpg

thumb38.jpg

2848 ms

thumb40.jpg

thumb40.jpg

2925 ms

thumb42.jpg

thumb42.jpg

3017 ms

thumb43.jpg

thumb43.jpg

3209 ms

thumb01.jpg

thumb01.jpg

3151 ms

widgets.js

widgets.js

19 ms

linkid.js

linkid.js

13 ms

collect

collect

31 ms

collect

collect

62 ms

information

information

3145 ms

thumb02.jpg

thumb02.jpg

2962 ms

rss_s.png

rss_s.png

2950 ms

top_auditorium2.jpg

top_auditorium2.jpg

3178 ms

top_artlibrary2.jpg

top_artlibrary2.jpg

3371 ms

twitter_m.png

twitter_m.png

3204 ms

facebook_m.png

facebook_m.png

3106 ms

weather_m.png

weather_m.png

2935 ms

access_m.png

access_m.png

2951 ms

footer_logo.png

footer_logo.png

3135 ms

fontsize_s_on.png

fontsize_s_on.png

3212 ms

arrow_r.png

arrow_r.png

3267 ms

icon_external.png

icon_external.png

3164 ms

shadow.png

shadow.png

2997 ms

icon_cal_prev.png

icon_cal_prev.png

2467 ms

icon_cal_next.png

icon_cal_next.png

2609 ms

_visual36.png

_visual36.png

3002 ms

_visual.jpg

_visual.jpg

3719 ms

_visual9.jpg

_visual9.jpg

3409 ms

_visual5.jpg

_visual5.jpg

3472 ms

_visual6.jpg

_visual6.jpg

3395 ms

_visual2.jpg

_visual2.jpg

3847 ms

_visual4.jpg

_visual4.jpg

3979 ms

cal_dayhead.png

cal_dayhead.png

3408 ms

line3.png

line3.png

3379 ms

border_dot.png

border_dot.png

3240 ms

icon_pdflink.png

icon_pdflink.png

3187 ms

border940.png

border940.png

3221 ms

icon_arrow_bold_white.png

icon_arrow_bold_white.png

3203 ms

icon_external_white.png

icon_external_white.png

3251 ms

icon_arrow_up.png

icon_arrow_up.png

3202 ms

icon_info_news.png

icon_info_news.png

3238 ms

icon_info_topics.png

icon_info_topics.png

3298 ms

icon_info_press.png

icon_info_press.png

3365 ms

base_e0e0e0.png

base_e0e0e0.png

3219 ms

exhibition.csv

exhibition.csv

3304 ms

calendar.csv

calendar.csv

336 ms

icon_day_night.png

icon_day_night.png

176 ms

icon_day_nursery.png

icon_day_nursery.png

338 ms

cal_day_closed.png

cal_day_closed.png

517 ms

icon_day_heart.png

icon_day_heart.png

350 ms

icon_day_silver.png

icon_day_silver.png

350 ms

cal_ex_41.jpg

cal_ex_41.jpg

358 ms

cal_ex_42a.jpg

cal_ex_42a.jpg

524 ms

cal_ex_44a.jpg

cal_ex_44a.jpg

684 ms

cal_ex_45a.jpg

cal_ex_45a.jpg

701 ms

cal_ac_26.jpg

cal_ac_26.jpg

728 ms

cal_ex_43.jpg

cal_ex_43.jpg

724 ms

cal_ex_46a.jpg

cal_ex_46a.jpg

848 ms

cal_ac_25.jpg

cal_ac_25.jpg

900 ms

cal_ac_30.jpg

cal_ac_30.jpg

1018 ms

cal_ex_47.jpg

cal_ex_47.jpg

1058 ms

cal_ex_48.jpg

cal_ex_48.jpg

1056 ms

cal_today.png

cal_today.png

1266 ms

cal_circle_purple.png

cal_circle_purple.png

1180 ms

cal_image_special.png

cal_image_special.png

1234 ms

cal_image_closed.png

cal_image_closed.png

1351 ms

cal_image_special_end.png

cal_image_special_end.png

1407 ms

cal_circle_group.png

cal_circle_group.png

1411 ms

cal_image_group.png

cal_image_group.png

1554 ms

cal_image_group_end.png

cal_image_group_end.png

1567 ms

cal_noimage_blue.png

cal_noimage_blue.png

1607 ms

cal_noimage_blue_end.png

cal_noimage_blue_end.png

1700 ms

cal_noimage_yellow.png

cal_noimage_yellow.png

1767 ms

cal_noimage_yellow_end.png

cal_noimage_yellow_end.png

1776 ms

cal_noimage_green.png

cal_noimage_green.png

1919 ms

cal_noimage_green_end.png

cal_noimage_green_end.png

1933 ms

cal_noimage_red.png

cal_noimage_red.png

1953 ms

cal_noimage_red_end.png

cal_noimage_red_end.png

2041 ms

cal_noimage_pink.png

cal_noimage_pink.png

2137 ms

cal_noimage_pink_end.png

cal_noimage_pink_end.png

2142 ms

cal_circle_ac.png

cal_circle_ac.png

2268 ms

cal_noimage_closed.png

cal_noimage_closed.png

2276 ms

cal_image_project.png

cal_image_project.png

2150 ms

cal_image_project_end.png

cal_image_project_end.png

2047 ms

cal_image_ac_end.png

cal_image_ac_end.png

2132 ms

cal_noimage_tws.png

cal_noimage_tws.png

2149 ms

cal_noimage_tws_end.png

cal_noimage_tws_end.png

2280 ms

icon_free_mini.png

icon_free_mini.png

2132 ms

large.css

large.css

168 ms

Accessibility Review

tobikan.jp accessibility score

80

Accessibility Issues

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

Links do not have a discernible name

Best Practices

tobikan.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tobikan.jp SEO score

90

Search Engine Optimization Advices

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 Tobikan.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 Tobikan.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

tobikan.jp

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