Tools & Wizards About Us
bsdjj.com screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

bsdjj.com

【北师大家教网—北京上门家教首选】北京一对一上门家教的首选品牌！提供北京重点中小学老师和清华、北大、北师大等大学生上门家教，北京家教网

Page Load Speed

34.3 sec in total

First Response

15.1 sec

Resources Loaded

19 sec

Page Rendered

205 ms

bsdjj.com screenshot

About Website

Visit bsdjj.com now to see the best up-to-date Bsdjj content and also check out these interesting facts you probably never knew about bsdjj.com

★【北师大家教网】拥有清华、北大、北师大等高校大学生和研究生，师资上万人，同时特聘请人大附，清华附，北大附，101中学，四中，八中，北师附中，名师1对1上门授课，成功案例高达万人次，是京城师资最大，覆盖最全，队伍最强的家教网，北京最权威家教中心。家教热线010-57143210

Visit bsdjj.com

Key Findings

We analyzed Bsdjj.com page load time and found that the first response time was 15.1 sec and then it took 19.2 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.

Performance Metrics

bsdjj.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value22.1 s

0/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

bsdjj.com

15085 ms

shanghai.css

1684 ms

uaredirect.js

222 ms

back.gif

290 ms

top_1_1.gif

516 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 84% of them (82 requests) were addressed to the original Bsdjj.com, 6% (6 requests) were made to Bdimg.share.baidu.com and 3% (3 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (15.1 sec) belongs to the original domain Bsdjj.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 118.3 kB (58%)

Content Size

203.1 kB

After Optimization

84.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bsdjj.com main page is 203.1 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. 20% of websites need less resources to load. HTML takes 112.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 96.2 kB

  • Original 112.6 kB
  • After minification 93.2 kB
  • After compression 16.4 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. This page needs HTML code to be minified as it can gain 19.4 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 96.2 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 985 B

  • Original 51.0 kB
  • After minification 50.0 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. Bsdjj images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 11 B

  • Original 13.0 kB
  • After minification 13.0 kB
  • After compression 13.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-80%

Potential reduce by 21.1 kB

  • Original 26.4 kB
  • After minification 22.1 kB
  • After compression 5.3 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. Bsdjj.com needs all CSS files to be minified and compressed as it can save up to 21.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (56%)

Requests Now

85

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bsdjj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bsdjj.com

bsdjj.com

15085 ms

shanghai.css

shanghai.css

1684 ms

uaredirect.js

uaredirect.js

222 ms

back.gif

back.gif

290 ms

top_1_1.gif

top_1_1.gif

516 ms

top_1_2.gif

top_1_2.gif

571 ms

top_1_3.gif

top_1_3.gif

572 ms

top_1_4.gif

top_1_4.gif

576 ms

top_1_5.gif

top_1_5.gif

576 ms

top_2_1.gif

top_2_1.gif

578 ms

20116131615337979.gif

20116131615337979.gif

792 ms

my_ttgood.gif

my_ttgood.gif

849 ms

regest.gif

regest.gif

851 ms

save.gif

save.gif

857 ms

top_2_2.gif

top_2_2.gif

859 ms

title_l.gif

title_l.gif

860 ms

title_m_1.gif

title_m_1.gif

1064 ms

title_m_2.gif

title_m_2.gif

1123 ms

title_m_3.gif

title_m_3.gif

1125 ms

title_m_4.gif

title_m_4.gif

1134 ms

title_m_5.gif

title_m_5.gif

1136 ms

title_r.gif

title_r.gif

1139 ms

top_3_2.gif

top_3_2.gif

1338 ms

special_1.gif

special_1.gif

1400 ms

special_2.gif

special_2.gif

1403 ms

special_3.gif

special_3.gif

1413 ms

telephone.gif

telephone.gif

1416 ms

qinjiajiao.gif

qinjiajiao.gif

1420 ms

zuojiaoyuan_1.gif

zuojiaoyuan_1.gif

1610 ms

search_6.gif

search_6.gif

1678 ms

login.gif

login.gif

1681 ms

login_ico.gif

login_ico.gif

1694 ms

zhuce.gif

zhuce.gif

1697 ms

notice.gif

notice.gif

1701 ms

02.jpg

02.jpg

1888 ms

photo1.jpg

photo1.jpg

2235 ms

teacher_star.gif

teacher_star.gif

1964 ms

01.jpg

01.jpg

1953 ms

pa

pa

835 ms

pa

pa

833 ms

photo2.jpg

photo2.jpg

2028 ms

teacher_shuxue.gif

teacher_shuxue.gif

1702 ms

03.jpg

03.jpg

1651 ms

photo3.jpg

photo3.jpg

1676 ms

teacher_english.gif

teacher_english.gif

1695 ms

zxz_logo.gif

zxz_logo.gif

1698 ms

zxz_search.gif

zxz_search.gif

1864 ms

05.gif

05.gif

1937 ms

zxz_1.gif

zxz_1.gif

1730 ms

zxz_2.gif

zxz_2.gif

1696 ms

zxz_3.gif

zxz_3.gif

1694 ms

phone_1.gif

phone_1.gif

1697 ms

phone_2.gif

phone_2.gif

1855 ms

phone_3.gif

phone_3.gif

1931 ms

shell_v2.js

shell_v2.js

532 ms

h.js

h.js

434 ms

search_2.gif

search_2.gif

1735 ms

search_1.gif

search_1.gif

1700 ms

search_3.gif

search_3.gif

1699 ms

search_4.gif

search_4.gif

1699 ms

search_5.gif

search_5.gif

1850 ms

search_7.gif

search_7.gif

1928 ms

search_8.gif

search_8.gif

1737 ms

search_9.gif

search_9.gif

1701 ms

broken_line_2.gif

broken_line_2.gif

1699 ms

notice_ico.gif

notice_ico.gif

1699 ms

teacher_1.gif

teacher_1.gif

1842 ms

teacher_2.gif

teacher_2.gif

1923 ms

h.js

h.js

951 ms

bds_s_v2.js

bds_s_v2.js

266 ms

teacher_4.gif

teacher_4.gif

1743 ms

broken_line_1.gif

broken_line_1.gif

1703 ms

yinfu.gif

yinfu.gif

1702 ms

student_1.gif

student_1.gif

1699 ms

student_2.gif

student_2.gif

1833 ms

zxz_4.gif

zxz_4.gif

1915 ms

bdsstyle.css

bdsstyle.css

263 ms

getnum

getnum

804 ms

zxz_5.gif

zxz_5.gif

1739 ms

zxz_6.gif

zxz_6.gif

1694 ms

zxz_7.gif

zxz_7.gif

1678 ms

center_1_1.gif

center_1_1.gif

1684 ms

is.png

is.png

521 ms

sc.png

sc.png

479 ms

center_1_2.gif

center_1_2.gif

1638 ms

center_1_3.gif

center_1_3.gif

1657 ms

center_2_1.gif

center_2_1.gif

1662 ms

center_2_2.gif

center_2_2.gif

1675 ms

center_2_3.gif

center_2_3.gif

1676 ms

qq_top.gif

qq_top.gif

1683 ms

42.gif

42.gif

1486 ms

hm.gif

hm.gif

300 ms

logger.js

logger.js

384 ms

qq_logo.gif

qq_logo.gif

1638 ms

qq_life.gif

qq_life.gif

1658 ms

qq_right.gif

qq_right.gif

1663 ms

button_11.gif

button_11.gif

918 ms

button_11.gif

button_11.gif

918 ms

Accessibility Review

bsdjj.com accessibility score

38

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

[id] attributes on active, focusable elements are not unique

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

bsdjj.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Browser errors were logged to the console

SEO Factors

bsdjj.com SEO score

58

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

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bsdjj.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 Bsdjj.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

bsdjj.com

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