Tools & Wizards About Us
pc51.net screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

pc51.net

震泽刻章 七都刻章--苏州宋氏电脑刻章有限公司(公安备案)

Page Load Speed

5.8 sec in total

First Response

1.2 sec

Resources Loaded

4.3 sec

Page Rendered

329 ms

pc51.net screenshot

About Website

Welcome to pc51.net homepage info - get ready to check Pc 51 best content right away, or after learning these important things about pc51.net

欢迎光临宋氏企业，我们竭诚为您服务!,苏州宋氏电脑刻章有限公司前身是震泽军训刻字社、宋氏电脑服务部合并升级而来有40多年刻公章历史，公司有完备的技术和人员配置，具备一定的规模及实力。承接苏州大市范围（6区4市）企业备案公章刻制，公安联网指定备案。

Visit pc51.net

Key Findings

We analyzed Pc51.net page load time and found that the first response time was 1.2 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

pc51.net performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.339

33/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

pc51.net

1248 ms

main.css

439 ms

home.css

646 ms

external.js

452 ms

js.js

456 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 85% of them (63 requests) were addressed to the original Pc51.net, 5% (4 requests) were made to Pagead2.googlesyndication.com and 5% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Pc51.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 85.2 kB (22%)

Content Size

384.6 kB

After Optimization

299.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pc51.net main page is 384.6 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. 35% of websites need less resources to load. Images take 270.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 53.7 kB

  • Original 70.9 kB
  • After minification 68.7 kB
  • After compression 17.1 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 53.7 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 11.7 kB

  • Original 270.6 kB
  • After minification 258.9 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. Pc 51 images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 2.6 kB

  • Original 21.0 kB
  • After minification 20.3 kB
  • After compression 18.4 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 13% of the original size.

CSS Optimization

-78%

Potential reduce by 17.2 kB

  • Original 22.1 kB
  • After minification 20.1 kB
  • After compression 4.9 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. Pc51.net needs all CSS files to be minified and compressed as it can save up to 17.2 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (58%)

Requests Now

66

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pc 51. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pc51.net

pc51.net

1248 ms

main.css

main.css

439 ms

home.css

home.css

646 ms

external.js

external.js

452 ms

js.js

js.js

456 ms

home.js

home.js

459 ms

focus.js

focus.js

621 ms

loginjs.php

loginjs.php

705 ms

weather.js

weather.js

662 ms

show_ads.js

show_ads.js

7 ms

stat.htm

stat.htm

258 ms

PC51.gif

PC51.gif

878 ms

www.ranking-hits.de

www.ranking-hits.de

206 ms

bgbody.gif

bgbody.gif

230 ms

9b0d4632189392cf4640405a2fb59c6f.jpg

9b0d4632189392cf4640405a2fb59c6f.jpg

864 ms

last.gif

last.gif

231 ms

next.gif

next.gif

239 ms

0f336b6dcf98d182296a70f98b231732.jpg

0f336b6dcf98d182296a70f98b231732.jpg

1066 ms

5171f7f7c4d8275915cb0c18849a82ea.jpg

5171f7f7c4d8275915cb0c18849a82ea.jpg

826 ms

65d60a9c50d4fdf5fc548dad139d2f2f.jpg

65d60a9c50d4fdf5fc548dad139d2f2f.jpg

1340 ms

9e565ed8a5679293653dc82ca0ce7b85.jpg

9e565ed8a5679293653dc82ca0ce7b85.jpg

1098 ms

480bf930ed249da433e14d1e8ded81ad.jpg

480bf930ed249da433e14d1e8ded81ad.jpg

1111 ms

9a8b362da77da012cdc9ba09b9231737.jpg

9a8b362da77da012cdc9ba09b9231737.jpg

1451 ms

db.png

db.png

1068 ms

cable.jpg

cable.jpg

1278 ms

ad300x100.jpg

ad300x100.jpg

1291 ms

3047b9ca293ccf01f7366e12caffe79b.gif

3047b9ca293ccf01f7366e12caffe79b.gif

1343 ms

733851d77f422199aa72bd44aeaa91aa.gif

733851d77f422199aa72bd44aeaa91aa.gif

1352 ms

5018d8e47d580e5c02c7881fc8e8ccf0.gif

5018d8e47d580e5c02c7881fc8e8ccf0.gif

1489 ms

4050163fbc3b53647cdb6007dcca65fa.gif

4050163fbc3b53647cdb6007dcca65fa.gif

1505 ms

8f3d74221d2b124347a0cb988d0f0f62.gif

8f3d74221d2b124347a0cb988d0f0f62.gif

1550 ms

pic_foot.gif

pic_foot.gif

1552 ms

redarrow.gif

redarrow.gif

1509 ms

logo.gif

logo.gif

1607 ms

tableft.gif

tableft.gif

1631 ms

tabright.gif

tabright.gif

1646 ms

nav1.gif

nav1.gif

1694 ms

nav2.gif

nav2.gif

1695 ms

users.gif

users.gif

1708 ms

rss.png

rss.png

1798 ms

alpha-new.gif

alpha-new.gif

1841 ms

ca-pub-4160528674668906.js

ca-pub-4160528674668906.js

113 ms

zrt_lookup.html

zrt_lookup.html

105 ms

show_ads_impl.js

show_ads_impl.js

61 ms

icon_box.gif

icon_box.gif

1833 ms

headline_bg.gif

headline_bg.gif

1890 ms

icon_li.gif

icon_li.gif

1887 ms

bg1.gif

bg1.gif

1909 ms

titledot.gif

titledot.gif

1983 ms

caption_left_column_bg.gif

caption_left_column_bg.gif

2034 ms

red_arrow_down.gif

red_arrow_down.gif

2054 ms

arrow.gif

arrow.gif

2095 ms

ads

ads

25 ms

osd.js

osd.js

18 ms

ga.js

ga.js

47 ms

ads

ads

30 ms

ads

ads

56 ms

focus2.gif

focus2.gif

1962 ms

focus1.gif

focus1.gif

1976 ms

fb.jpg

fb.jpg

2038 ms

__utm.gif

__utm.gif

17 ms

ft.gif

ft.gif

1530 ms

icon_data.gif

icon_data.gif

1489 ms

bg4.gif

bg4.gif

1330 ms

bg5.gif

bg5.gif

1332 ms

bg6.gif

bg6.gif

1325 ms

tdot.gif

tdot.gif

1378 ms

li2.gif

li2.gif

1284 ms

blueli.gif

blueli.gif

1276 ms

newsli.gif

newsli.gif

1272 ms

rtbg.gif

rtbg.gif

1270 ms

li3.gif

li3.gif

1285 ms

friend_bg.gif

friend_bg.gif

1245 ms

friendline.gif

friendline.gif

1280 ms

Accessibility Review

pc51.net accessibility score

79

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

pc51.net 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

pc51.net SEO score

91

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

Links do not have descriptive text

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pc51.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Pc51.net 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

pc51.net

Open Graph description is not detected on the main page of Pc 51. 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: