9.3 sec in total
640 ms
8.3 sec
320 ms
Welcome to dongascience.com homepage info - get ready to check Dongascience best content for South Korea right away, or after learning these important things about dongascience.com
모든 사람에게 즐거운 과학을 선물합니다 깊이 있는 전문적인 과학뉴스와 일상생활 속 과학 상식까지 국내 NO.1 과학 포털에서 '즐거운 과학'을 만나보세요!
Visit dongascience.comWe analyzed Dongascience.com page load time and found that the first response time was 640 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
dongascience.com performance score
name
value
score
weighting
Value2.2 s
76/100
10%
Value2.2 s
94/100
25%
Value3.5 s
89/100
10%
Value0 ms
100/100
30%
Value0.001
100/100
15%
Value2.2 s
99/100
10%
640 ms
710 ms
1440 ms
843 ms
612 ms
Our browser made a total of 87 requests to load all elements on the main page. We found that 24% of them (21 requests) were addressed to the original Dongascience.com, 46% (40 requests) were made to Img.dongascience.com and 18% (16 requests) were made to Image.dongascience.com. The less responsive or slowest element that took the longest time to load (4 sec) relates to the external source Image.dongascience.com.
Page size can be reduced by 770.9 kB (28%)
2.8 MB
2.0 MB
In fact, the total size of Dongascience.com main page is 2.8 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 1.9 MB which makes up the majority of the site volume.
Potential reduce by 40.1 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 40.1 kB or 78% of the original size.
Potential reduce by 102.7 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. Dongascience images are well optimized though.
Potential reduce by 552.6 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 552.6 kB or 75% of the original size.
Potential reduce by 75.6 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. Dongascience.com needs all CSS files to be minified and compressed as it can save up to 75.6 kB or 83% of the original size.
Number of requests can be reduced by 31 (37%)
83
52
The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dongascience. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
dongascience.com
640 ms
www.dongascience.com
710 ms
common.css
1440 ms
main_new.css
843 ms
jquery-ui-1.9.2.custom.css
612 ms
search.css
905 ms
tab.css
409 ms
jquery.js
1040 ms
jquery-migrate-1.2.1.min.js
30 ms
jquery-ui.js
1470 ms
jquery-cookie.js
457 ms
jquery.lazyload.js
469 ms
jquery.scrollUp.js
887 ms
jquery.cycle.js
1284 ms
unitpngfix.js
922 ms
calendarConfig.js
1028 ms
common.js
1373 ms
snow2.js
913 ms
jquery.materialripple.css
1398 ms
jquery.materialripple.js
1432 ms
jquery.slick.js
1984 ms
toputill_back.gif
414 ms
akc
421 ms
image.dongascience.com
663 ms
dslogo2.png
616 ms
btn_srch.gif
446 ms
arrow_down.gif
414 ms
topmenu_back.jpg
434 ms
search_line.png
439 ms
btn_stop.png
573 ms
ico_fa.png
866 ms
ico_cas.png
859 ms
ico_tw.png
850 ms
transback.png
843 ms
tle_tback2.png
866 ms
14600823418865.jpg
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1027 ms
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1161 ms
btn_order.jpg
1532 ms
btn_cscenter.gif
1280 ms
sciva.jpg
2262 ms
newword.jpg
1974 ms
cosmos.jpg
2261 ms
lets.jpg
2250 ms
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3003 ms
snowflake_1.png
1751 ms
snowflake_2.png
1979 ms
snowflake_4.png
2201 ms
snowflake_5.png
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snowflake_6.png
2233 ms
snowflake_3.png
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family_science.gif
2381 ms
family_kids.gif
2384 ms
family_math.gif
2406 ms
family_junior.gif
2452 ms
family_star.gif
2570 ms
family_scimall.gif
2787 ms
family_genium.gif
2839 ms
family_lib.gif
2849 ms
dslogo_footer.png
2865 ms
akc.js
722 ms
analytics.js
104 ms
sr.gif
738 ms
image.css
471 ms
mcircle_off.gif
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mcircle_on.gif
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btn_family_prev.gif
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btn_family_next.gif
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collect
22 ms
collect
87 ms
top.png
435 ms
ASP_Conf.js
1164 ms
[sr].gif
465 ms
emd_pt.js
478 ms
HTTP_s.js
1484 ms
st.php
652 ms
dongascience.com accessibility score
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
<input type="image"> elements do not have [alt] text
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
dongascience.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
dongascience.com 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
KO
KO
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dongascience.com can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and it matches the claimed language. Our system also found out that Dongascience.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.
dongascience.com
Open Graph description is not detected on the main page of Dongascience. 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: