Tools & Wizards About Us
szzctx.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 57

    SEO

    Google-friendlier than
    20% of websites

szzctx.com

4G校园一键报警_4G一键报警装置_4G全网通一键报警器_电话线校园一键报警主机_电话线一键报警设备_电话线一键报警装置 - 校园一键报警系统

Page Load Speed

7.9 sec in total

First Response

1.5 sec

Resources Loaded

6.1 sec

Page Rendered

249 ms

szzctx.com screenshot

About Website

Welcome to szzctx.com homepage info - get ready to check Szzctx best content right away, or after learning these important things about szzctx.com

深圳深安阳光电子有限公司主要生产4G校园一键报警,4G一键报警装置,4G全网通一键报警器,电话线校园一键报警主机,电话线一键报警设备,电话线一键报警装置,校园一键报警系统，公司一直以优越的技术和服务赢得了社会各界的信任，联系电话：0755-33022522

Visit szzctx.com

Key Findings

We analyzed Szzctx.com page load time and found that the first response time was 1.5 sec and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

szzctx.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

szzctx.com

1538 ms

style.css

1738 ms

jquery.js

1966 ms

jqnav.js

905 ms

KinSlideshow.js

1556 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that all of those requests were addressed to Szzctx.com and no external sources were called. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Szzctx.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 188.3 kB (13%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szzctx.com main page is 1.5 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.1 kB

  • Original 21.7 kB
  • After minification 20.1 kB
  • After compression 5.6 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 16.1 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 46.9 kB

  • Original 1.3 MB
  • After minification 1.2 MB

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. Szzctx images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 73.4 kB

  • Original 104.9 kB
  • After minification 104.6 kB
  • After compression 31.6 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 73.4 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 51.9 kB

  • Original 62.4 kB
  • After minification 52.6 kB
  • After compression 10.5 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. Szzctx.com needs all CSS files to be minified and compressed as it can save up to 51.9 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

30

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Szzctx. According to our analytics all requests are already optimized.

Network Requests Diagram

szzctx.com

szzctx.com

1538 ms

style.css

style.css

1738 ms

jquery.js

jquery.js

1966 ms

jqnav.js

jqnav.js

905 ms

KinSlideshow.js

KinSlideshow.js

1556 ms

logo.jpg

logo.jpg

427 ms

2017050917555149437.jpg

2017050917555149437.jpg

219 ms

2017050917564635216.jpg

2017050917564635216.jpg

868 ms

index_pingtai_right.jpg

index_pingtai_right.jpg

216 ms

link.gif

link.gif

644 ms

top1.png

top1.png

436 ms

bgli.png

bgli.png

846 ms

bgli2.png

bgli2.png

641 ms

bgli3.png

bgli3.png

642 ms

shlf.jpg

shlf.jpg

2172 ms

shlftp.jpg

shlftp.jpg

1063 ms

spyjbj.jpg

spyjbj.jpg

655 ms

fspyjbj.jpg

fspyjbj.jpg

1709 ms

shlftop.jpg

shlftop.jpg

3205 ms

IPG12.jpg

IPG12.jpg

874 ms

PB06.jpg

PB06.jpg

1692 ms

PB09.jpg

PB09.jpg

1092 ms

IPG10.jpg

IPG10.jpg

1277 ms

IPtel9.jpg

IPtel9.jpg

1310 ms

more01.gif

more01.gif

1490 ms

ncshlf.jpg

ncshlf.jpg

1529 ms

xqshlf.jpg

xqshlf.jpg

1705 ms

spshlf.jpg

spshlf.jpg

1748 ms

zysd.jpg

zysd.jpg

1904 ms

show_nav.gif

show_nav.gif

1864 ms

news_10.gif

news_10.gif

1867 ms

Accessibility Review

szzctx.com accessibility score

60

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

szzctx.com best practices score

67

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

szzctx.com SEO score

57

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Szzctx.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 Szzctx.com main page’s claimed encoding is gb2312. 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.

Social Sharing Optimization

szzctx.com

Open Graph description is not detected on the main page of Szzctx. 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: