6.8 sec in total
560 ms
6 sec
230 ms
Visit sumida-aquarium.com now to see the best up-to-date Sumida Aquarium content for Japan and also check out these interesting facts you probably never knew about sumida-aquarium.com
東京スカイツリータウン®にあるすみだ水族館。ペンギン、チンアナゴ、クラゲなどを間近にご覧いただけます。完全屋内型。東京下町の観光や子連れのお出かけにも最適。
Visit sumida-aquarium.comWe analyzed Sumida-aquarium.com page load time and found that the first response time was 560 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
sumida-aquarium.com performance score
name
value
score
weighting
Value6.9 s
1/100
10%
Value13.5 s
0/100
25%
Value16.5 s
0/100
10%
Value290 ms
80/100
30%
Value0.4
25/100
15%
Value37.0 s
0/100
10%
560 ms
815 ms
209 ms
29 ms
360 ms
Our browser made a total of 137 requests to load all elements on the main page. We found that 96% of them (131 requests) were addressed to the original Sumida-aquarium.com, 2% (3 requests) were made to Tg.socdm.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Sumida-aquarium.com.
Page size can be reduced by 311.9 kB (30%)
1.0 MB
714.8 kB
In fact, the total size of Sumida-aquarium.com main page is 1.0 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. 50% of websites need less resources to load. Images take 659.9 kB which makes up the majority of the site volume.
Potential reduce by 33.5 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. This page needs HTML code to be minified as it can gain 4.8 kB, which is 12% 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 33.5 kB or 82% of the original size.
Potential reduce by 35.9 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. Sumida Aquarium images are well optimized though.
Potential reduce by 230.5 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 230.5 kB or 74% of the original size.
Potential reduce by 12.0 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. Sumida-aquarium.com needs all CSS files to be minified and compressed as it can save up to 12.0 kB or 80% of the original size.
Number of requests can be reduced by 50 (37%)
135
85
The browser has sent 135 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sumida Aquarium. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
sumida-aquarium.com
560 ms
www.sumida-aquarium.com
815 ms
index.css
209 ms
jquery.min.js
29 ms
scrollsmoothly.js
360 ms
jquery.rollover.js
361 ms
jquery.cookie.js
365 ms
jquery.fontsize.js
377 ms
jcarousellite_1.0.1.min.js
402 ms
jquery.easing.1.3.js
393 ms
jquery-ui.min.js
855 ms
jquery.skitter.js
538 ms
jquery.dropdownPlain.js
536 ms
common.css
361 ms
ga.js
52 ms
bg_body.jpg
376 ms
bg_wrap.png
194 ms
head_logo_off.png
177 ms
icon_facebook_off.png
202 ms
icon_twitter_off.png
169 ms
icon_youtube_off.png
337 ms
head_lang01_off.png
349 ms
head_lang03_off.png
381 ms
head_lang04_off.png
404 ms
head_lang05_off.png
430 ms
head_txt01.gif
503 ms
fontsize-s.jpg
524 ms
fontsize-m.jpg
563 ms
fontsize-l.jpg
570 ms
head_txt02.gif
623 ms
head_btn01.jpg
597 ms
head_btn02_off.png
670 ms
head_btn03_off.png
695 ms
head_btn04_off.png
753 ms
head_btn05_off.png
760 ms
bg_gnavi.jpg
765 ms
gnavi.png
1022 ms
gnavi_bg.jpg
838 ms
timthumb.php
1215 ms
timthumb.php
1126 ms
timthumb.php
1134 ms
timthumb.php
1100 ms
timthumb.php
1379 ms
prev_off.png
1223 ms
next_off.png
1304 ms
bnr_temporary_closing_jp.png
1502 ms
tit01.gif
1322 ms
box08_btn_off.png
1385 ms
box09_btn_off.png
1423 ms
left_arrow_off.gif
1444 ms
__utm.gif
12 ms
right_arrow_off.gif
1351 ms
box01_bg02_off.gif
1378 ms
ico03.gif
1367 ms
timthumb.php
1429 ms
so.js
700 ms
timthumb.php
1370 ms
timthumb.php
1361 ms
timthumb.php
1361 ms
timthumb.php
1345 ms
timthumb.php
1351 ms
timthumb.php
1428 ms
timthumb.php
1387 ms
tit02.gif
1380 ms
box02_01_off.png
1375 ms
box02_02_off.png
1324 ms
box02_03_off.png
1333 ms
box02_04_off.png
1385 ms
box02_05_off.png
1407 ms
box02_06_off.png
1400 ms
side_application_off.png
1358 ms
congestion_00.jpg
1331 ms
side_facebook_off.png
1317 ms
side_bnr01_off.png
1385 ms
side_bnr02_off.png
1389 ms
js
203 ms
side_bnr03_off.png
1211 ms
side_bnr04_off.png
1192 ms
side_bnr_rec_off.png
1123 ms
skytreetown_off.png
1138 ms
v3
201 ms
side_bnr05_off.png
1106 ms
side_bnr06_off.png
1204 ms
side_bnr07_off.png
1158 ms
side_bnr_08_off.png
1097 ms
side_bnr_09_off2.gif
1075 ms
pagetop_off.png
1094 ms
foot_logo_off.png
1088 ms
bg_footer02.jpg
1119 ms
bg_footline.gif
1125 ms
fontsize-s_ov.jpg
1134 ms
fontsize-m_ov.jpg
1085 ms
fontsize-l_ov.jpg
1114 ms
timthumb.php
1054 ms
timthumb.php
1120 ms
timthumb.php
1136 ms
timthumb.php
1098 ms
timthumb.php
1127 ms
head_logo_on.png
1134 ms
icon_facebook_on.png
1034 ms
icon_twitter_on.png
1110 ms
icon_youtube_on.png
1092 ms
head_lang01_on.png
1146 ms
head_lang03_on.png
1136 ms
head_lang04_on.png
1116 ms
head_lang05_on.png
1068 ms
head_btn02_on.png
1085 ms
head_btn03_on.png
1088 ms
head_btn04_on.png
1116 ms
head_btn05_on.png
1156 ms
prev_on.png
1138 ms
next_on.png
1090 ms
box08_btn_on.png
1058 ms
box09_btn_on.png
1074 ms
left_arrow_on.gif
1104 ms
right_arrow_on.gif
1144 ms
box02_01_on.png
1140 ms
box02_02_on.png
1106 ms
box02_03_on.png
1044 ms
box02_04_on.png
1049 ms
box02_05_on.png
1063 ms
box02_06_on.png
1141 ms
side_application_on.png
1136 ms
side_facebook_on.png
1122 ms
side_bnr01_on.png
1045 ms
side_bnr02_on.png
1015 ms
side_bnr03_on.png
1059 ms
side_bnr04_on.png
1145 ms
side_bnr_rec_on.png
1139 ms
skytreetown_on.png
1155 ms
side_bnr05_on.png
1079 ms
side_bnr06_on.png
1011 ms
side_bnr07_on.png
1032 ms
side_bnr_08_on.png
1143 ms
pagetop_on.png
1148 ms
foot_logo_on.png
1120 ms
ajax-loader.gif
1099 ms
sumida-aquarium.com accessibility score
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
[aria-*] attributes do not match their roles
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
ARIA toggle fields do not have accessible names
[aria-*] attributes do not have valid values
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
sumida-aquarium.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
sumida-aquarium.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sumida-aquarium.com 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 Sumida-aquarium.com 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.
sumida-aquarium.com
Open Graph description is not detected on the main page of Sumida Aquarium. 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: