4.9 sec in total
772 ms
3.8 sec
285 ms
Welcome to tombozukan.net homepage info - get ready to check Tombozukan best content for Japan right away, or after learning these important things about tombozukan.net
トンボ観察図鑑へようこそ!日本国内で記録のあるとんぼを追っかけ、撮影できた種類をHPにて記録しております。
Visit tombozukan.netWe analyzed Tombozukan.net page load time and found that the first response time was 772 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
tombozukan.net performance score
name
value
score
weighting
Value2.8 s
58/100
10%
Value5.0 s
26/100
25%
Value3.9 s
82/100
10%
Value10 ms
100/100
30%
Value0.058
98/100
15%
Value5.0 s
76/100
10%
772 ms
565 ms
769 ms
1224 ms
316 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 72% of them (28 requests) were addressed to the original Tombozukan.net, 5% (2 requests) were made to X4.enokorogusa.com and 5% (2 requests) were made to Ct1.shinobi.jp. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Tombozukan.net.
Page size can be reduced by 135.5 kB (14%)
977.8 kB
842.3 kB
In fact, the total size of Tombozukan.net main page is 977.8 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. 20% of websites need less resources to load. Images take 950.7 kB which makes up the majority of the site volume.
Potential reduce by 11.8 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 11.8 kB or 80% of the original size.
Potential reduce by 116.4 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. Obviously, Tombozukan needs image optimization as it can save up to 116.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 7.3 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 7.3 kB or 59% of the original size.
Number of requests can be reduced by 11 (29%)
38
27
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tombozukan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
tombozukan.net
772 ms
0638839
565 ms
043340700
769 ms
top-bn.png
1224 ms
top-whatsnew.gif
316 ms
top-contents.gif
318 ms
top-kansatsu.gif
321 ms
top-tonbomoku01.gif
330 ms
top-tombo.jpg
823 ms
top-yanma.jpg
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top-itotombo.jpg
945 ms
top-topbanar03.gif
480 ms
top-topbanar01.gif
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top-sanae.jpg
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top-oni.jpg
820 ms
top-kawatombo.jpg
935 ms
top-akatonbo01.gif
960 ms
top-topbanar04.gif
984 ms
top-ezo.jpg
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top-aoito.jpg
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top-monosasi.jpg
1257 ms
top-topbanar02-01.gif
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top-haretokidoki.png
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top-mukasitombo.jpg
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top-mukasiyanma.jpg
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top-minamikawa.jpg
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top-kimagure.gif
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week.jpg
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top-mail.gif
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copylight-01.gif
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0638839
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trac.js
848 ms
0638839
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Zen
380 ms
encount
525 ms
s.gif
516 ms
1.13.17
1060 ms
cookiesync
588 ms
sync
185 ms
tombozukan.net 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
tombozukan.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Issues were logged in the Issues panel in Chrome Devtools
tombozukan.net SEO score
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
JA
JA
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tombozukan.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 Tombozukan.net main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
tombozukan.net
Open Graph description is not detected on the main page of Tombozukan. 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: