Tools & Wizards About Us
sp910.com screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    68% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

sp910.com

教视网 - 中小学优质课,公开课,名师课堂实录教学视频

Page Load Speed

55.3 sec in total

First Response

2.5 sec

Resources Loaded

48.6 sec

Page Rendered

4.2 sec

sp910.com screenshot

About Website

Welcome to sp910.com homepage info - get ready to check Sp 910 best content for China right away, or after learning these important things about sp910.com

教视网收录了国家级优质课教学视频和各省市优质课、展示课、公开课等名师课堂实录。教视网为广大中小学教师朋友提供一个优质而便捷的教学视频观看平台。

Visit sp910.com

Key Findings

We analyzed Sp910.com page load time and found that the first response time was 2.5 sec and then it took 52.9 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 10 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

sp910.com performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

8/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

sp910.com

2456 ms

www.sp910.com

10225 ms

base_v.3.6.css

4654 ms

index_v.3.4.css

11257 ms

layout-1.0.0.js

4053 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 44% of them (36 requests) were addressed to the original Sp910.com, 20% (16 requests) were made to Q.qlogo.cn and 17% (14 requests) were made to Img2.sp910.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Sp910.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 415.0 kB (39%)

Content Size

1.1 MB

After Optimization

643.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sp910.com main page is 1.1 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. 25% of websites need less resources to load. Images take 569.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 193.4 kB

  • Original 220.5 kB
  • After minification 213.2 kB
  • After compression 27.1 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 193.4 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 26.6 kB

  • Original 569.7 kB
  • After minification 543.1 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. Sp 910 images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 106.8 kB

  • Original 159.1 kB
  • After minification 147.6 kB
  • After compression 52.3 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 106.8 kB or 67% of the original size.

CSS Optimization

-81%

Potential reduce by 88.2 kB

  • Original 109.1 kB
  • After minification 99.9 kB
  • After compression 20.9 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. Sp910.com needs all CSS files to be minified and compressed as it can save up to 88.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (7%)

Requests Now

69

After Optimization

64

  • Images
  • JavaScript
  • CSS

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sp 910. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sp910.com

sp910.com

2456 ms

www.sp910.com

www.sp910.com

10225 ms

base_v.3.6.css

base_v.3.6.css

4654 ms

index_v.3.4.css

index_v.3.4.css

11257 ms

layout-1.0.0.js

layout-1.0.0.js

4053 ms

jquery.js

jquery.js

7185 ms

common.js

common.js

19853 ms

gg_lanmu1.js

gg_lanmu1.js

4543 ms

Share7.js

Share7.js

4925 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

608 ms

201510100908573.jpg

201510100908573.jpg

15924 ms

2015121608493321.jpg

2015121608493321.jpg

6859 ms

100

100

16094 ms

5.jpg

5.jpg

10654 ms

ewm.gif

ewm.gif

1027 ms

grey.gif

grey.gif

477 ms

8.jpg

8.jpg

7296 ms

1.jpg

1.jpg

10375 ms

15.jpg

15.jpg

6923 ms

10.jpg

10.jpg

10457 ms

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6.jpg

10022 ms

2.jpg

2.jpg

6678 ms

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3.jpg

13514 ms

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12.jpg

12857 ms

14.jpg

14.jpg

11632 ms

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13.jpg

18622 ms

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104345.jpg

13050 ms

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4.jpg

14475 ms

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9.jpg

19988 ms

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120630.jpg

13724 ms

142684.jpg

142684.jpg

18175 ms

11.jpg

11.jpg

17288 ms

net_jubao.jpg

net_jubao.jpg

16189 ms

net_cq1.jpg

net_cq1.jpg

14924 ms

net_cq2.jpg

net_cq2.jpg

15365 ms

net_cq4.jpg

net_cq4.jpg

15892 ms

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2015092909065831.jpg

5403 ms

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2015081710031064.jpg

12518 ms

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2015100410253828.jpg

17416 ms

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2015100508400510.jpg

9390 ms

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16332 ms

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2015101111063634.jpg

9864 ms

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17621 ms

100

100

16497 ms

100

100

16751 ms

100

100

15523 ms

100

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15558 ms

100

100

15574 ms

100

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15838 ms

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15885 ms

100

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15900 ms

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16983 ms

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16148 ms

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17091 ms

100

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16535 ms

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17060 ms

100

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16964 ms

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16780 ms

13.jpg

13.jpg

19963 ms

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2015121608493010.jpg

5879 ms

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9310 ms

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8122 ms

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2015120808213021.jpg

6866 ms

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2015102708414432.jpg

15319 ms

base_v.5.png

base_v.5.png

19947 ms

gg_480_296.jpg

gg_480_296.jpg

19916 ms

ply_bg.png

ply_bg.png

19053 ms

menu_share.png

menu_share.png

19793 ms

h.js

h.js

447 ms

hm.gif

hm.gif

229 ms

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20130401180922391.jpg

10552 ms

201403310921313.jpg

201403310921313.jpg

15350 ms

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2013060711321921.jpg

19969 ms

2015123008374434.jpg

2015123008374434.jpg

13797 ms

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2015062509382732.jpg

8024 ms

2014111109063015.jpg

2014111109063015.jpg

19969 ms

2015101111062414.jpg

2015101111062414.jpg

12923 ms

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2015062311444429.jpg

11233 ms

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2015092220435136.jpg

19968 ms

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201409280955176.jpg

14878 ms

2015120309534637.jpg

2015120309534637.jpg

19968 ms

Accessibility Review

sp910.com accessibility score

59

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.

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

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

sp910.com best practices score

69

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

General

Impact

Issue

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sp910.com SEO score

92

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

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

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sp910.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 Sp910.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

sp910.com

Open Graph description is not detected on the main page of Sp 910. 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: