Access weather.com.cn. 天气网

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value25.4 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value23.6 s

1/100

10%

weather.com.cn

931 ms

www.weather.com.cn

1397 ms

wyJsonList.js

1376 ms

core.js

998 ms

main_0814.css

1445 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 5% of them (6 requests) were addressed to the original Weather.com.cn, 26% (32 requests) were made to I.i8tq.com and 17% (21 requests) were made to I.tq121.com.cn. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source I.i8tq.com.

Content Size

4.3 MB

After Optimization

3.2 MB

In fact, the total size of Weather.com.cn main page is 4.3 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. 55% of websites need less resources to load. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 137.5 kB

Original 160.4 kB
After minification 126.0 kB
After compression 22.9 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 34.5 kB, which is 21% 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 137.5 kB or 86% of the original size.

Image Optimization

-14%

Potential reduce by 462.0 kB

Original 3.4 MB
After minification 3.0 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. Obviously, Weather needs image optimization as it can save up to 462.0 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 476.5 kB

Original 710.1 kB
After minification 444.8 kB
After compression 233.7 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 476.5 kB or 67% of the original size.

CSS Optimization

-30%

Potential reduce by 6.9 kB

Original 23.3 kB
After minification 23.3 kB
After compression 16.3 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. Weather.com.cn needs all CSS files to be minified and compressed as it can save up to 6.9 kB or 30% of the original size.

Requests Now

116

After Optimization

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Weather. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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 Weather.com.cn 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 Weather.com.cn 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

weather.com.cn

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

天气网

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)

Network Requests Diagram

weather.com.cn

www.weather.com.cn

wyJsonList.js

core.js

main_0814.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

weather.com.cn

www.weather.com.cn

wyJsonList.js

core.js

main_0814.css

idangerous.swiper.css

wyMsg.css

jquery.js

searchCityList.css

pcvideo.js

city.js

searchCityList.js

data_alarm.js

add_new.js

style.css

slide.js

geolocation.min.js

hb.js

main_0814.js

idangerous.swiper.js

wyMsg.js

version.js

logo2.png

sevp_nsmc_wxbl_fy4b_etcc_achn_lno_py_20240504090000000.jpg

202405041537201CCDD3719AF51CF6D60B4323FF738F99.jpg

20240429160715484C580A2FD87DCE2E07DF327A7B0A06.jpg

D771522E873CA17BDB5C57820B5D8DB8.jpg

jk.png

sevp_nmc_stfc_sfer_er24_achn_l88_p9_20240504000002400.jpg

sevp_ncc_zki_shlsk_eci_achn_l88_pb_20240504000000000.png

z_rada_c_babj_20240504095453_p_dor_achn_cref_20240504_094800.png

search.png

rbAd.jpg

wuyi_2024.gif

indexImg_gl.png

vplay.png

index_summer.png

index_v2.jpg

fs2024.png

wly2024.png

zty2024.png

xw2024.png

fbh_2021.png