Tools & Wizards About Us
tt277.com screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

tt277.com

TT277-学生导航|学习网站大全-提供免费教学视频

Page Load Speed

21.4 sec in total

First Response

4.6 sec

Resources Loaded

16.6 sec

Page Rendered

219 ms

tt277.com screenshot

About Website

Welcome to tt277.com homepage info - get ready to check TT277 best content right away, or after learning these important things about tt277.com

TT277是一个为广大中学生服务的学习网站大全.我们不仅提供免费教学视频而且添加了许多有趣好玩的网址，立志成为一个超棒的中学生学习网站

Visit tt277.com

Key Findings

We analyzed Tt277.com page load time and found that the first response time was 4.6 sec and then it took 16.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

tt277.com performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

tt277.com

4558 ms

www_1616.css

2467 ms

common.js

1246 ms

qTcms.config.js

1393 ms

1938 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 46% of them (23 requests) were addressed to the original Tt277.com, 20% (10 requests) were made to Tianqi.2345.com and 10% (5 requests) were made to Comment.news.sohu.com. The less responsive or slowest element that took the longest time to load (8.2 sec) belongs to the original domain Tt277.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 421.1 kB (67%)

Content Size

625.8 kB

After Optimization

204.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tt277.com main page is 625.8 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. Javascripts take 463.5 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 33.4 kB

  • Original 45.6 kB
  • After minification 43.6 kB
  • After compression 12.2 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 33.4 kB or 73% of the original size.

Image Optimization

-4%

Potential reduce by 738 B

  • Original 17.1 kB
  • After minification 16.3 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. TT277 images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 302.6 kB

  • Original 463.5 kB
  • After minification 451.2 kB
  • After compression 160.8 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 302.6 kB or 65% of the original size.

CSS Optimization

-85%

Potential reduce by 84.3 kB

  • Original 99.6 kB
  • After minification 97.8 kB
  • After compression 15.3 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. Tt277.com needs all CSS files to be minified and compressed as it can save up to 84.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (49%)

Requests Now

47

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TT277. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tt277.com

tt277.com

4558 ms

www_1616.css

www_1616.css

2467 ms

common.js

common.js

1246 ms

qTcms.config.js

qTcms.config.js

1393 ms

1938 ms

h_bg.png

h_bg.png

743 ms

header_bg.png

header_bg.png

4304 ms

navbg_m.jpg

navbg_m.jpg

705 ms

navbg.jpg

navbg.jpg

934 ms

appbg.png

appbg.png

4498 ms

clock.png

clock.png

1201 ms

h_bg3.png

h_bg3.png

2063 ms

allbgs.png

allbgs.png

2143 ms

public.js

public.js

1404 ms

jquery_1.4.2.js

jquery_1.4.2.js

6912 ms

www_1616.js

www_1616.js

4305 ms

qTcms.Dom.js

qTcms.Dom.js

8198 ms

jquery.js

jquery.js

2551 ms

emoji.js

emoji.js

221 ms

index.htm

index.htm

1566 ms

jsyw1.htm

jsyw1.htm

3641 ms

yingyu.htm

yingyu.htm

2003 ms

mingrenmingyan.htm

mingrenmingyan.htm

3567 ms

load

load

2206 ms

config

config

2198 ms

wea_plugin_widget_v20150401130731.css

wea_plugin_widget_v20150401130731.css

5703 ms

jquery.js

jquery.js

4358 ms

common2_v20160303101052.js

common2_v20160303101052.js

2780 ms

citySelectData.js

citySelectData.js

7705 ms

smallCityName.js

smallCityName.js

806 ms

widget_v20141205141757.js

widget_v20141205141757.js

1202 ms

tianqiplugin

tianqiplugin

2393 ms

daysen4duba.js

daysen4duba.js

1227 ms

emoji.css

emoji.css

219 ms

3.gif

3.gif

937 ms

4.gif

4.gif

931 ms

6.gif

6.gif

956 ms

8.gif

8.gif

963 ms

9.gif

9.gif

967 ms

tsdax.js

tsdax.js

715 ms

jq.js

jq.js

204 ms

webdig.js

webdig.js

1557 ms

116.js

116.js

664 ms

245.js

245.js

620 ms

h.js

h.js

1668 ms

besttop.gif

besttop.gif

2164 ms

hm.gif

hm.gif

422 ms

detect2013_plugin.php

detect2013_plugin.php

798 ms

undefined.js

undefined.js

808 ms

undefined.js

undefined.js

1201 ms

Accessibility Review

tt277.com accessibility score

49

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

[role] values are not valid

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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

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

Best Practices

tt277.com 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

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

SEO Factors

tt277.com SEO score

58

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

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 Tt277.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 Tt277.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

tt277.com

Open Graph description is not detected on the main page of TT277. 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: