3.6 sec in total
1.4 sec
2.2 sec
102 ms
Click here to check amazing SERA System content for South Korea. Otherwise, check out these important facts you probably never knew about serasystem.com
더 좋은, 더 편리한 SERA S.E.
Visit serasystem.comWe analyzed Serasystem.com page load time and found that the first response time was 1.4 sec and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
serasystem.com performance score
name
value
score
weighting
Value2.7 s
62/100
10%
Value3.6 s
62/100
25%
Value4.2 s
77/100
10%
Value30 ms
100/100
30%
Value0.113
86/100
15%
Value3.6 s
92/100
10%
1361 ms
395 ms
402 ms
400 ms
412 ms
Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Serasystem.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Serasystem.com.
Page size can be reduced by 11.5 kB (80%)
14.3 kB
2.8 kB
In fact, the total size of Serasystem.com main page is 14.3 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. Only 5% of websites need less resources to load. HTML takes 8.9 kB which makes up the majority of the site volume.
Potential reduce by 7.2 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 2.7 kB, which is 30% 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 7.2 kB or 81% of the original size.
Potential reduce by 2.6 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 2.6 kB or 80% of the original size.
Potential reduce by 1.7 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. Serasystem.com needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 76% of the original size.
We found no issues to fix!
16
16
The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SERA System. According to our analytics all requests are already optimized.
serasystem.com
1361 ms
standard.css
395 ms
style.css
402 ms
url.js
400 ms
hidden.js
412 ms
top_bg.gif
204 ms
topmenu.gif
204 ms
map0000.gif
208 ms
pic01.gif
403 ms
da.gif
207 ms
pic02.gif
401 ms
da2.gif
403 ms
pic03.gif
611 ms
da3.gif
412 ms
pic04.gif
611 ms
da4.gif
600 ms
copy.gif
601 ms
copy_bg.gif
593 ms
serasystem.com 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
serasystem.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
serasystem.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
N/A
EUC-KR
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serasystem.com can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Serasystem.com main page’s claimed encoding is euc-kr. 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.
serasystem.com
Open Graph description is not detected on the main page of SERA System. 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: