35.1 sec in total
5.1 sec
29.6 sec
342 ms
Welcome to dezhitang.com homepage info - get ready to check Dezhitang best content right away, or after learning these important things about dezhitang.com
对近视、弱视、散光、斜视、青光眼、白内障、黄斑变性、视网膜病变、视物模糊、眼干眼涩、怕光流泪、视力下降等眼病有独到的研究,被誉为眼病克星。其保护眼睛的相关产品近视康、明目霜、明目贴、德致堂牌诺盯软胶囊、近视复健训练镜等深受消费者欢迎。德致堂视力保健工作室,有口皆碑。欢迎加盟,欢迎咨询。眼贴OEM贴牌,眼贴代加工,眼贴招商代理
Visit dezhitang.comWe analyzed Dezhitang.com page load time and found that the first response time was 5.1 sec and then it took 30 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.
dezhitang.com performance score
name
value
score
weighting
Value2.4 s
72/100
10%
Value4.2 s
45/100
25%
Value9.4 s
12/100
10%
Value620 ms
48/100
30%
Value0
100/100
15%
Value3.6 s
91/100
10%
5144 ms
908 ms
921 ms
3382 ms
2410 ms
Our browser made a total of 86 requests to load all elements on the main page. We found that 59% of them (51 requests) were addressed to the original Dezhitang.com, 9% (8 requests) were made to Lxbjs.baidu.com and 7% (6 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Dezhitang.com.
Page size can be reduced by 155.9 kB (36%)
434.1 kB
278.2 kB
In fact, the total size of Dezhitang.com main page is 434.1 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. 25% of websites need less resources to load. Images take 245.6 kB which makes up the majority of the site volume.
Potential reduce by 91.7 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 91.7 kB or 83% of the original size.
Potential reduce by 10.1 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. Dezhitang images are well optimized though.
Potential reduce by 29.7 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 29.7 kB or 65% of the original size.
Potential reduce by 24.4 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. Dezhitang.com needs all CSS files to be minified and compressed as it can save up to 24.4 kB or 78% of the original size.
Number of requests can be reduced by 36 (43%)
84
48
The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dezhitang. 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 6 to 1 for CSS and as a result speed up the page load time.
{{url}}
{{time}} ms
dezhitang.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
<object> elements do not have alternate text
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
dezhitang.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
dezhitang.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
Document uses plugins
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dezhitang.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Dezhitang.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.
{{og_description}}
dezhitang.com
Open Graph description is not detected on the main page of Dezhitang. 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: