Tools & Wizards About Us
dezhitang.com screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

dezhitang.com

德致堂（河南）生物工程有限公司/视力保健/视力健康中心连锁加盟品牌-眼贴OEM贴牌，眼贴代加工，眼贴招商代理

Page Load Speed

35.1 sec in total

First Response

5.1 sec

Resources Loaded

29.6 sec

Page Rendered

342 ms

dezhitang.com screenshot

About Website

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.com

Key Findings

We 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.

Performance Metrics

dezhitang.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

dezhitang.com

5144 ms

css.css

908 ms

zong.css

921 ms

AC_RunActiveContent.js

3382 ms

tanchu.js

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 Optimization Overview & Recommendations

Page size can be reduced by 155.9 kB (36%)

Content Size

434.1 kB

After Optimization

278.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

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.

HTML Optimization

-83%

Potential reduce by 91.7 kB

  • Original 110.9 kB
  • After minification 108.9 kB
  • After compression 19.3 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.

Image Optimization

-4%

Potential reduce by 10.1 kB

  • Original 245.6 kB
  • After minification 235.5 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.

JavaScript Optimization

-65%

Potential reduce by 29.7 kB

  • Original 46.1 kB
  • After minification 42.1 kB
  • After compression 16.3 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 29.7 kB or 65% of the original size.

CSS Optimization

-78%

Potential reduce by 24.4 kB

  • Original 31.5 kB
  • After minification 23.0 kB
  • After compression 7.1 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.

Requests Breakdown

Number of requests can be reduced by 36 (43%)

Requests Now

84

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

dezhitang.com

dezhitang.com

5144 ms

css.css

css.css

908 ms

zong.css

zong.css

921 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

3382 ms

tanchu.js

tanchu.js

2410 ms

daohang1.js

daohang1.js

1464 ms

date.js

date.js

910 ms

daohang_menu.js

daohang_menu.js

636 ms

922997.js

922997.js

1823 ms

_tt.gif

_tt.gif

827 ms

logo01.gif

logo01.gif

293 ms

logo02.gif

logo02.gif

5452 ms

s_6_on.gif

s_6_on.gif

295 ms

arrow_01.gif

arrow_01.gif

1662 ms

produce.gif

produce.gif

298 ms

manyipinpai1.jpg

manyipinpai1.jpg

8790 ms

js2.jpg

js2.jpg

578 ms

zaixiandinggou.gif

zaixiandinggou.gif

596 ms

zhaoshangbanner.jpg

zhaoshangbanner.jpg

1454 ms

new.gif

new.gif

858 ms

banner11.jpg

banner11.jpg

1477 ms

yangaozitu.gif

yangaozitu.gif

1141 ms

deng.gif

deng.gif

1426 ms

yehuangsuzitu.gif

yehuangsuzitu.gif

1707 ms

shuangjizitu.gif

shuangjizitu.gif

1731 ms

yantie.gif

yantie.gif

1759 ms

juemingheye.jpg

juemingheye.jpg

19975 ms

qijujuemingcha.jpg

qijujuemingcha.jpg

1996 ms

sangyekuguacha.jpg

sangyekuguacha.jpg

2311 ms

tiao.jpg

tiao.jpg

2082 ms

yuekan.gif

yuekan.gif

2282 ms

011.gif

011.gif

2370 ms

2014315xiao.jpg

2014315xiao.jpg

2565 ms

100_2179.gif

100_2179.gif

2588 ms

royu1.gif

royu1.gif

2653 ms

zhengshu.gif

zhengshu.gif

2848 ms

manyitongpai.jpg

manyitongpai.jpg

2872 ms

linkmeiguo1.gif

linkmeiguo1.gif

2948 ms

linkmeiguo.gif

linkmeiguo.gif

3132 ms

gs.gif

gs.gif

3152 ms

shell_v2.js

shell_v2.js

534 ms

dh_top.jpg

dh_top.jpg

3219 ms

menu-a.gif

menu-a.gif

3396 ms

chayinbanner.jpg

chayinbanner.jpg

3414 ms

top2.jpg

top2.jpg

3499 ms

zhenaijinshi.jpg

zhenaijinshi.jpg

3685 ms

top222.jpg

top222.jpg

3705 ms

icon_0.gif

icon_0.gif

522 ms

h.js

h.js

681 ms

zhuandong.htm

zhuandong.htm

3527 ms

top99.jpg

top99.jpg

3705 ms

bds_s_v2.js

bds_s_v2.js

788 ms

lxb.js

lxb.js

1327 ms

b.js

b.js

667 ms

logger.js

logger.js

576 ms

hm.gif

hm.gif

342 ms

bdsstyle.css

bdsstyle.css

262 ms

getnum

getnum

828 ms

bsl.js

bsl.js

1000 ms

is.png

is.png

779 ms

sc.png

sc.png

287 ms

log.gif

log.gif

268 ms

_l.js

_l.js

588 ms

Enter.php

Enter.php

513 ms

main_icon_invite_mess_api.js

main_icon_invite_mess_api.js

1289 ms

main.css

main.css

888 ms

fix.css

fix.css

523 ms

version.js

version.js

526 ms

log.gif

log.gif

274 ms

16.css

16.css

541 ms

16.jpg

16.jpg

562 ms

zd3.gif

zd3.gif

291 ms

zd4.gif

zd4.gif

294 ms

zd8.gif

zd8.gif

470 ms

zd9.gif

zd9.gif

585 ms

zd10.gif

zd10.gif

588 ms

button_old_71.gif

button_old_71.gif

453 ms

button_old_71.gif

button_old_71.gif

468 ms

button_old_71.gif

button_old_71.gif

478 ms

button_old_71.gif

button_old_71.gif

477 ms

button_old_71.gif

button_old_71.gif

479 ms

2.png

2.png

280 ms

bpa.js

bpa.js

2569 ms

log.gif

log.gif

276 ms

log.gif

log.gif

545 ms

hm.gif

hm.gif

673 ms

Accessibility Review

dezhitang.com accessibility score

50

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

<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

High

<html> element does not have a [lang] attribute

Best Practices

dezhitang.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dezhitang.com SEO score

62

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    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.

Social Sharing Optimization

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: