Tools & Wizards About Us
51lunwen.org screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

51lunwen.org

顶尖英语论文网-全球最专业的英语论文、留学生论文和英文作业的服务专家

Page Load Speed

43.9 sec in total

First Response

5.8 sec

Resources Loaded

37.8 sec

Page Rendered

268 ms

51lunwen.org screenshot

About Website

Visit 51lunwen.org now to see the best up-to-date 51 Lunwen content for China and also check out these interesting facts you probably never knew about 51lunwen.org

提供英美各国留学生论文、英语论文格式范文,12年专业论文和essay写作服务经验,50多名英语硕士毕业论文写作专家,详情请联系QQ：949925041

Visit 51lunwen.org

Key Findings

We analyzed 51lunwen.org page load time and found that the first response time was 5.8 sec and then it took 38.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number 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.

Performance Metrics

51lunwen.org performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

51lunwen.org

5838 ms

golbal.css

937 ms

style.css

2015 ms

def_st.css

1048 ms

share.css

1155 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 82% of them (53 requests) were addressed to the original 51lunwen.org, 8% (5 requests) were made to Bdimg.share.baidu.com and 6% (4 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain 51lunwen.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.3 kB (53%)

Content Size

307.0 kB

After Optimization

144.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51lunwen.org main page is 307.0 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. 20% of websites need less resources to load. Images take 109.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 42.9 kB

  • Original 58.2 kB
  • After minification 55.5 kB
  • After compression 15.3 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 42.9 kB or 74% of the original size.

Image Optimization

-22%

Potential reduce by 24.3 kB

  • Original 109.4 kB
  • After minification 85.0 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, 51 Lunwen needs image optimization as it can save up to 24.3 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 67.3 kB

  • Original 103.4 kB
  • After minification 100.0 kB
  • After compression 36.1 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 67.3 kB or 65% of the original size.

CSS Optimization

-77%

Potential reduce by 27.7 kB

  • Original 36.0 kB
  • After minification 28.4 kB
  • After compression 8.3 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. 51lunwen.org needs all CSS files to be minified and compressed as it can save up to 27.7 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (59%)

Requests Now

63

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Lunwen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

51lunwen.org

51lunwen.org

5838 ms

golbal.css

golbal.css

937 ms

style.css

style.css

2015 ms

def_st.css

def_st.css

1048 ms

share.css

share.css

1155 ms

jquery.js

jquery.js

19646 ms

fun.js

fun.js

1404 ms

fav.js

fav.js

2224 ms

login.js

login.js

1580 ms

3019323.js

3019323.js

4386 ms

share.js

share.js

757 ms

logo.png

logo.png

2085 ms

bjt.png

bjt.png

3059 ms

navBg.jpg

navBg.jpg

3719 ms

navSect.jpg

navSect.jpg

1689 ms

img05.jpg

img05.jpg

10133 ms

x2.jpg

x2.jpg

13271 ms

def_gg2.gif

def_gg2.gif

4089 ms

yg.png

yg.png

3562 ms

adly.png

adly.png

4082 ms

mg.png

mg.png

4241 ms

jnd.png

jnd.png

4580 ms

xxl.png

xxl.png

4589 ms

xjp.png

xjp.png

4759 ms

xg.png

xg.png

5025 ms

rb.png

rb.png

5036 ms

hg.png

hg.png

5258 ms

fg.png

fg.png

5460 ms

dg.png

dg.png

5466 ms

ael.png

ael.png

5769 ms

rs.png

rs.png

5879 ms

hl.png

hl.png

5893 ms

els.png

els.png

6291 ms

xby.png

xby.png

6304 ms

mlxy.png

mlxy.png

8651 ms

nf.png

nf.png

6816 ms

orgQQ.gif

orgQQ.gif

8007 ms

h3bg.jpg

h3bg.jpg

7308 ms

conh3.jpg

conh3.jpg

7833 ms

hico.jpg

hico.jpg

8362 ms

li11.JPG

li11.JPG

8427 ms

li12.JPG

li12.JPG

8896 ms

li13.JPG

li13.JPG

8850 ms

li14.JPG

li14.JPG

9044 ms

li15.JPG

li15.JPG

9277 ms

li1.JPG

li1.JPG

9424 ms

seacherbg.jpg

seacherbg.jpg

9472 ms

icon_0.gif

icon_0.gif

749 ms

shell_v2.js

shell_v2.js

854 ms

h.js

h.js

1494 ms

bds_s_v2.js

bds_s_v2.js

867 ms

21.gif

21.gif

1174 ms

hm.gif

hm.gif

1176 ms

h.js

h.js

1785 ms

seBtn.jpg

seBtn.jpg

9207 ms

bdsstyle.css

bdsstyle.css

425 ms

r6.gif

r6.gif

849 ms

11wel1.jpg

11wel1.jpg

10619 ms

gotag.jpg

gotag.jpg

7349 ms

logger.js

logger.js

417 ms

hm.gif

hm.gif

365 ms

inLH3.jpg

inLH3.jpg

8579 ms

catH3.jpg

catH3.jpg

9603 ms

hezuo.jpg

hezuo.jpg

6774 ms

bj.jpg

bj.jpg

8366 ms

Accessibility Review

51lunwen.org accessibility score

51

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

51lunwen.org best practices score

50

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

51lunwen.org 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

Links do not have descriptive text

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 51lunwen.org 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 51lunwen.org 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

51lunwen.org

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