8.1 sec in total
380 ms
7.6 sec
163 ms
Click here to check amazing Seaandsea content for Japan. Otherwise, check out these important facts you probably never knew about seaandsea.co.jp
シーアンドシーは世界で'唯一'の水中撮影機材の総合メーカー として、世界60カ国以上のダイバー、カメラマンの支持を得ています。
Visit seaandsea.co.jpWe analyzed Seaandsea.co.jp page load time and found that the first response time was 380 ms and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
seaandsea.co.jp performance score
name
value
score
weighting
Value5.9 s
4/100
10%
Value16.1 s
0/100
25%
Value14.1 s
1/100
10%
Value310 ms
77/100
30%
Value0.866
4/100
15%
Value13.9 s
10/100
10%
380 ms
537 ms
297 ms
294 ms
297 ms
Our browser made a total of 112 requests to load all elements on the main page. We found that 69% of them (77 requests) were addressed to the original Seaandsea.co.jp, 13% (15 requests) were made to Static.xx.fbcdn.net and 10% (11 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Seaandsea.co.jp.
Page size can be reduced by 428.0 kB (21%)
2.1 MB
1.6 MB
In fact, the total size of Seaandsea.co.jp main page is 2.1 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. 45% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 37.5 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 9.5 kB, which is 20% 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 37.5 kB or 79% of the original size.
Potential reduce by 34.7 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. Seaandsea images are well optimized though.
Potential reduce by 276.8 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 276.8 kB or 75% of the original size.
Potential reduce by 79.1 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. Seaandsea.co.jp needs all CSS files to be minified and compressed as it can save up to 79.1 kB or 85% of the original size.
Number of requests can be reduced by 44 (42%)
106
62
The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seaandsea. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.
seaandsea.co.jp
380 ms
www.seaandsea.co.jp
537 ms
style_page.css
297 ms
top_page.css
294 ms
headmenu.css
297 ms
top_owabi.css
297 ms
styleswitcher.js
297 ms
script.js
434 ms
prototype.js
1167 ms
jquery-1.3.1.min.js
875 ms
jquery.easing.1.3.js
585 ms
scriptaculous.js
1021 ms
browserdetect.js
587 ms
product_browser.js
724 ms
navigations.js
877 ms
vticker.js
880 ms
marquee.js
1016 ms
productbrowser.css
1166 ms
common.css
1169 ms
default.css
1316 ms
main.css
1308 ms
vticker.css
1311 ms
pc.css
1455 ms
top_img.js
1457 ms
in.js
306 ms
style.css
1318 ms
header.css
1312 ms
big.css
293 ms
normal.css
294 ms
hd_logo.gif
305 ms
hd_size_s.gif
306 ms
hd_size_m.gif
306 ms
hd_size_l.gif
306 ms
1.jpg
442 ms
2.jpg
306 ms
3.jpg
732 ms
4.jpg
731 ms
5.jpg
587 ms
6.jpg
588 ms
7.jpg
734 ms
8.jpg
879 ms
top_img.jpg
1460 ms
top_news.gif
880 ms
top_rss.gif
1023 ms
top_info.gif
1023 ms
top_pickup.gif
1025 ms
000076.jpg.jpg
1316 ms
000075.jpg.jpg
1317 ms
seasea-bana-.gif
1459 ms
you_tube.jpg
1315 ms
top_gs.jpg
1317 ms
ft_copyright.gif
1607 ms
sdk.js
269 ms
base.gif
1605 ms
hd_bullet.gif
1605 ms
hd_size_s_r.gif
1606 ms
hd_size_m_r.gif
1748 ms
hd_size_l_r.gif
1749 ms
none
1878 ms
top_arrow.gif
1879 ms
dotline.gif
1879 ms
top_icon_new.gif
1880 ms
top_icon_info2.gif
2022 ms
top_icon_info3.gif
2022 ms
catalog_bnr2.gif
2171 ms
bnr_bg.png
2170 ms
ga.js
30 ms
in.cgi
640 ms
__utm.gif
11 ms
catalog_bnr.gif
1894 ms
115 ms
xd_arbiter.php
214 ms
xd_arbiter.php
418 ms
small.css
149 ms
date.xml
150 ms
productbrowser_scrollbar.png
295 ms
page.php
227 ms
slideshow.xml
295 ms
KN-7vyIqScT.css
279 ms
vjfv3j-EdeX.css
351 ms
OmIkD0koXXo.css
419 ms
FAHeNGXgPup.js
549 ms
k19Xse48j5I.js
618 ms
ihptErjAmMX.js
563 ms
3So47A9WcrL.js
483 ms
cUsKAwzqrQw.js
614 ms
top_test_01.jpg
734 ms
top_test_02.jpg
1167 ms
top_test_03.jpg
878 ms
top_test_04.jpg
1023 ms
top_test_05.jpg
1026 ms
top_test_06.jpg
735 ms
top_test_07.jpg
1753 ms
visbg.jpg
924 ms
12036676_987585314627441_69051601572522078_n.jpg
277 ms
524647_535131479872829_335943273_n.jpg
337 ms
12803316_1072403219478983_4380297608139067860_n.jpg
586 ms
12804725_1066990493353589_4779391668008044807_n.jpg
471 ms
10322802_1066990483353590_3850714971730060429_n.jpg
470 ms
12814347_1066990510020254_6066978600120843498_n.jpg
470 ms
12718248_1064627103589928_5063650776119288480_n.jpg
472 ms
12049492_1064627106923261_3168505931264181516_n.jpg
509 ms
12803245_1064627116923260_5216513719430142507_n.jpg
1078 ms
10367184_1062762907109681_247144150812821204_n.jpg
537 ms
734750_1059449840774321_3247499904785138211_n.jpg
539 ms
wL6VQj7Ab77.png
100 ms
s7jcwEQH7Sx.png
100 ms
GtIpNnEyqq_.png
100 ms
R9a_DtVRZgv.js
68 ms
cUDgRFxaoIk.js
71 ms
0JBr1QHp8Gi.js
69 ms
kDOzhTr2W91.js
68 ms
seaandsea.co.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
seaandsea.co.jp 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
seaandsea.co.jp 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 Seaandsea.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 Seaandsea.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.
seaandsea.co.jp
Open Graph description is not detected on the main page of Seaandsea. 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: