Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 40

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

xhistory.net

xhistory.net

Page Load Speed

21.2 sec in total

First Response

4.1 sec

Resources Loaded

16.4 sec

Page Rendered

726 ms

xhistory.net screenshot

About Website

Welcome to xhistory.net homepage info - get ready to check Xhistory best content right away, or after learning these important things about xhistory.net

世界历史主题网站,溯古追风世界历史网:追本溯源,以史为鉴,成长中的世界历史资源门户网站。集历史学术,历史资讯,文献档案,文博考古,经典国学,历史教育,教学交流为一体,涵盖中国历史在内的国别史,文化史,军事史,政治史,经济史,哲学史等内容的专业历史学术学习交流网站。

Visit xhistory.net

Key Findings

We analyzed Xhistory.net page load time and found that the first response time was 4.1 sec and then it took 17.1 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

xhistory.net performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

xhistory.net

4105 ms

style.css

3845 ms

inc.js

3450 ms

default.js

3848 ms

swfobject.js

3864 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 79% of them (81 requests) were addressed to the original Xhistory.net, 7% (7 requests) were made to Bbs.xhistory.net and 5% (5 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (9.8 sec) relates to the external source Js.users.51.la.

Page Optimization Overview & Recommendations

Page size can be reduced by 276.3 kB (29%)

Content Size

963.8 kB

After Optimization

687.5 kB

In fact, the total size of Xhistory.net main page is 963.8 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. 35% of websites need less resources to load. Images take 640.7 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 119.9 kB

  • Original 137.9 kB
  • After minification 117.8 kB
  • After compression 18.0 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 20.2 kB, which is 15% 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 119.9 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 21.7 kB

  • Original 640.7 kB
  • After minification 619.0 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. Xhistory images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 112.0 kB

  • Original 156.3 kB
  • After minification 139.9 kB
  • After compression 44.3 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 112.0 kB or 72% of the original size.

CSS Optimization

-78%

Potential reduce by 22.7 kB

  • Original 28.9 kB
  • After minification 18.0 kB
  • After compression 6.2 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. Xhistory.net needs all CSS files to be minified and compressed as it can save up to 22.7 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (49%)

Requests Now

94

After Optimization

48

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xhistory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

xhistory.net accessibility score

40

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

Image elements do not have [alt] attributes

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

xhistory.net 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

xhistory.net SEO score

54

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Xhistory.net can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Xhistory.net 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

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