Access zgkao.com. 北京中考在线_2025年北京中考中招门户网站

14

Performance

Renders faster than
26% of other websites
71

Accessibility

Visual factors better than
that of 36% of websites
75

Best Practices

More advanced features
available than in
35% of websites
83

SEO

Google-friendlier than
46% of websites

First Response

494 ms

Resources Loaded

11 sec

Page Rendered

164 ms

About Website

Click here to check amazing Zgkao content for China. Otherwise, check out these important facts you probably never knew about zgkao.com

北京中考在线是专注2025年北京中考的门户网站，提供北京中考政策、招生计划，中考成绩、录取分数线查询,中考试题及答案、中考作文、中考升学规划及辅导等服务，热线：010-5334 9764

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Key Findings

We analyzed Zgkao.com page load time and found that the first response time was 494 ms and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value22.5 s

0/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.983

2/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

zgkao.com

494 ms

www.zgkao.com

2805 ms

1721615229659zgkao-cmzz.js

1520 ms

entry.cd38cd9a.css

1683 ms

default.bd02315f.css

639 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 55% of them (62 requests) were addressed to the original Zgkao.com, 37% (41 requests) were made to Cdn.zgkao.com and 3% (3 requests) were made to Cdn.spthome.com. The less responsive or slowest element that took the longest time to load (6.1 sec) relates to the external source Cdn.zgkao.com.

Content Size

3.9 MB

After Optimization

3.2 MB

In fact, the total size of Zgkao.com main page is 3.9 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. 45% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 321.6 kB

Original 373.4 kB
After minification 370.1 kB
After compression 51.8 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 321.6 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 81.9 kB

Original 3.0 MB
After minification 2.9 MB

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. Zgkao images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 376.9 kB

Original 532.6 kB
After minification 532.6 kB
After compression 155.7 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 376.9 kB or 71% of the original size.

Requests Now

105

After Optimization

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zgkao. 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 from 22 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not have valid values

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Zgkao.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 Zgkao.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

zgkao.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

北京中考在线_2025年北京中考中招门户网站

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)