36.8 sec in total
1.4 sec
35.2 sec
189 ms
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Visit tzsb.comWe analyzed Tzsb.com page load time and found that the first response time was 1.4 sec and then it took 35.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
tzsb.com performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value5.5 s
19/100
25%
Value4.9 s
66/100
10%
Value880 ms
32/100
30%
Value0
100/100
15%
Value10.2 s
25/100
10%
1430 ms
20224 ms
10867 ms
13706 ms
484 ms
Our browser made a total of 9 requests to load all elements on the main page. We found that 11% of them (1 request) were addressed to the original Tzsb.com, 78% (7 requests) were made to 4.cn and 11% (1 request) were made to Libs.baidu.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Libs.baidu.com.
Page size can be reduced by 23.9 kB (18%)
131.7 kB
107.8 kB
In fact, the total size of Tzsb.com main page is 131.7 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 10% of websites need less resources to load. Images take 108.2 kB which makes up the majority of the site volume.
Potential reduce by 3.0 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 1.2 kB, which is 25% 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 3.0 kB or 64% of the original size.
Potential reduce by 15.1 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, TZSB needs image optimization as it can save up to 15.1 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 5.7 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. Tzsb.com needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 30% of the original size.
We found no issues to fix!
7
7
The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TZSB. According to our analytics all requests are already optimized.
tzsb.com
1430 ms
jquery.js
20224 ms
style.css
10867 ms
stencil.css
13706 ms
a-header-bg.jpg
484 ms
a-banner.jpg
13535 ms
icon.png
3120 ms
a-content-bg.jpg
1200 ms
a-pic.jpg
3930 ms
tzsb.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.
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
Form elements do not have associated labels
tzsb.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
General
Impact
Issue
Detected JavaScript libraries
tzsb.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
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tzsb.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Tzsb.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.
tzsb.com
Open Graph description is not detected on the main page of TZSB. 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: