Tools & Wizards About Us
51xifu.com screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

51xifu.com

罗宾法派特（无忧西服网）

Page Load Speed

68.2 sec in total

First Response

6.1 sec

Resources Loaded

61.7 sec

Page Rendered

426 ms

51xifu.com screenshot

About Website

Click here to check amazing 51 Xifu content. Otherwise, check out these important facts you probably never knew about 51xifu.com

罗宾法派特（无忧西服网）

Visit 51xifu.com

Key Findings

We analyzed 51xifu.com page load time and found that the first response time was 6.1 sec and then it took 62.1 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 were 32 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51xifu.com performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value5.6 s

70/100

10%

Network Requests Diagram

51xifu.com

6062 ms

style.css

11948 ms

common.js

1798 ms

index.js

2239 ms

action.js

2435 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 54% of them (59 requests) were addressed to the original 51xifu.com, 11% (12 requests) were made to Skin.54kefu.net and 5% (5 requests) were made to Lxbjs.baidu.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain 51xifu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.2 kB (51%)

Content Size

396.0 kB

After Optimization

193.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51xifu.com main page is 396.0 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. 25% of websites need less resources to load. Images take 146.2 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 72.6 kB

  • Original 86.3 kB
  • After minification 79.7 kB
  • After compression 13.7 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 72.6 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 8.2 kB

  • Original 146.2 kB
  • After minification 138.1 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. 51 Xifu images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 66.4 kB

  • Original 94.4 kB
  • After minification 74.0 kB
  • After compression 28.0 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 66.4 kB or 70% of the original size.

CSS Optimization

-80%

Potential reduce by 55.1 kB

  • Original 69.1 kB
  • After minification 52.5 kB
  • After compression 13.9 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. 51xifu.com needs all CSS files to be minified and compressed as it can save up to 55.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (45%)

Requests Now

76

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Xifu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

51xifu.com

51xifu.com

6062 ms

style.css

style.css

11948 ms

common.js

common.js

1798 ms

index.js

index.js

2239 ms

action.js

action.js

2435 ms

scrollpic.js

scrollpic.js

2686 ms

roll.js

roll.js

2923 ms

transport.js

transport.js

11019 ms

utils.js

utils.js

2979 ms

cycle_image.js

cycle_image.js

3015 ms

35672.js

35672.js

2345 ms

16202691.js

16202691.js

896 ms

T2BNRQXgJbXXXXXXXX_!!533220659.jpg

T2BNRQXgJbXXXXXXXX_!!533220659.jpg

520 ms

T2z5xQXeNXXXXXXXXX_!!533220659.jpg

T2z5xQXeNXXXXXXXXX_!!533220659.jpg

636 ms

1139007x180x180.jpg

1139007x180x180.jpg

2146 ms

online.ww

online.ww

1057 ms

back_bg.gif

back_bg.gif

2988 ms

logo.gif

logo.gif

881 ms

14_thumb_G_1312571798672.jpg

14_thumb_G_1312571798672.jpg

20213 ms

11_thumb_G_1312571482606.jpg

11_thumb_G_1312571482606.jpg

13168 ms

6_thumb_G_1312565271780.jpg

6_thumb_G_1312565271780.jpg

20213 ms

3_thumb_G_1312422333710.jpg

3_thumb_G_1312422333710.jpg

20213 ms

51_thumb_G_1364001816826.jpg

51_thumb_G_1364001816826.jpg

18296 ms

1139133%28180x180%29.jpg

1139133%28180x180%29.jpg

20212 ms

2139112%28180x180%29.jpg

2139112%28180x180%29.jpg

20213 ms

2139114%28180x180%29.jpg

2139114%28180x180%29.jpg

20215 ms

2139116%28180x180%29.jpg

2139116%28180x180%29.jpg

20217 ms

261_thumb_G_1400017013863.jpg

261_thumb_G_1400017013863.jpg

20219 ms

269_thumb_G_1400029895288.jpg

269_thumb_G_1400029895288.jpg

20220 ms

270_thumb_G_1400030268587.jpg

270_thumb_G_1400030268587.jpg

20221 ms

265_thumb_G_1400021915455.jpg

265_thumb_G_1400021915455.jpg

20223 ms

266_thumb_G_1400025609106.jpg

266_thumb_G_1400025609106.jpg

20223 ms

267_thumb_G_1400026558322.jpg

267_thumb_G_1400026558322.jpg

20224 ms

268_thumb_G_1400027115910.jpg

268_thumb_G_1400027115910.jpg

20226 ms

262_thumb_G_1400017725295.jpg

262_thumb_G_1400017725295.jpg

20226 ms

264_thumb_G_1400018901904.jpg

264_thumb_G_1400018901904.jpg

20227 ms

263_thumb_G_1400018428890.jpg

263_thumb_G_1400018428890.jpg

20228 ms

logo1.gif

logo1.gif

20229 ms

cron.php

cron.php

20228 ms

1139002x180x180.jpg

1139002x180x180.jpg

2140 ms

0139005x180x180.jpg

0139005x180x180.jpg

8031 ms

1139050x180x180.jpg

1139050x180x180.jpg

2361 ms

1139051x180x180.jpg

1139051x180x180.jpg

3067 ms

1139052x180x180.jpg

1139052x180x180.jpg

2462 ms

1139053x180x180.jpg

1139053x180x180.jpg

2514 ms

1139054x180x180.jpg

1139054x180x180.jpg

3309 ms

1139058x180x180.jpg

1139058x180x180.jpg

2809 ms

1139136%28180x180%29.jpg

1139136%28180x180%29.jpg

12355 ms

1139105%EF%BC%88180x180%29.jpg

1139105%EF%BC%88180x180%29.jpg

10239 ms

2139111%28180x180%29.jpg

2139111%28180x180%29.jpg

20223 ms

2139135%28180x180%29.jpg

2139135%28180x180%29.jpg

20227 ms

3139119%28180x180%29.jpg

3139119%28180x180%29.jpg

20228 ms

7139113%28180x180%29.jpg

7139113%28180x180%29.jpg

17545 ms

2139003x180x180.jpg

2139003x180x180.jpg

12671 ms

1139059x180x180.jpg

1139059x180x180.jpg

13104 ms

T2A5xQXedXXXXXXXXX_!!533220659.jpg

T2A5xQXedXXXXXXXXX_!!533220659.jpg

499 ms

T2XiBQXchXXXXXXXXX_!!533220659.jpg

T2XiBQXchXXXXXXXXX_!!533220659.jpg

502 ms

20210 ms

.gif

.gif

20210 ms

caca.gif

caca.gif

20211 ms

header_btn.gif

header_btn.gif

20211 ms

data.js

data.js

20187 ms

btn_nav.jpg

btn_nav.jpg

20168 ms

modtit.gif

modtit.gif

20142 ms

bg.gif

bg.gif

20141 ms

footbg.gif

footbg.gif

20114 ms

getonline

getonline

15628 ms

35672_code.js

35672_code.js

6846 ms

url.js

url.js

1452 ms

T1B7m.XeXuXXaHNz_X-16-16.gif

T1B7m.XeXuXXaHNz_X-16-16.gif

394 ms

button_old_41.gif

button_old_41.gif

521 ms

button_old_41.gif

button_old_41.gif

267 ms

button_old_41.gif

button_old_41.gif

367 ms

button_old_41.gif

button_old_41.gif

535 ms

button_old_41.gif

button_old_41.gif

535 ms

skin.css

skin.css

3174 ms

style2015.css

style2015.css

2755 ms

top.gif

top.gif

1039 ms

1_f.gif

1_f.gif

1132 ms

1.gif

1.gif

2883 ms

106.gif

106.gif

6701 ms

bottom.gif

bottom.gif

1681 ms

btn_2.gif

btn_2.gif

2029 ms

btn_1.gif

btn_1.gif

2199 ms

T1uUG.XjtkXXcb2gzo-77-19.gif

T1uUG.XjtkXXcb2gzo-77-19.gif

318 ms

middle.gif

middle.gif

3887 ms

r.gif

r.gif

518 ms

bg.gif

bg.gif

6763 ms

shell_v2.js

shell_v2.js

728 ms

icon_8.gif

icon_8.gif

3863 ms

h.js

h.js

899 ms

bds_s_v2.js

bds_s_v2.js

2122 ms

hm.gif

hm.gif

461 ms

h.js

h.js

3359 ms

bdsstyle.css

bdsstyle.css

366 ms

l7.gif

l7.gif

682 ms

lxb.js

lxb.js

7619 ms

b.js

b.js

809 ms

logger.js

logger.js

345 ms

hm.gif

hm.gif

439 ms

bsl.js

bsl.js

1529 ms

Enter.php

Enter.php

1163 ms

main_icon_invite_mess_api.js

main_icon_invite_mess_api.js

19589 ms

main.css

main.css

2323 ms

fix.css

fix.css

1795 ms

version.js

version.js

996 ms

log.gif

log.gif

610 ms

_l.js

_l.js

1144 ms

log.gif

log.gif

467 ms

12.css

12.css

989 ms

Accessibility Review

51xifu.com accessibility score

61

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

Form elements do not have associated labels

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

51xifu.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

51xifu.com SEO score

85

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

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

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 51xifu.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 51xifu.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

51xifu.com

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