Access bosch-aa.com.cn. 博世汽车售后

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.0 s

20/100

10%

bosch-aa.com.cn

1697 ms

startpage_1.html

3945 ms

includecss.css

5474 ms

includecss2.css

2964 ms

includecss3.css

1682 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 80% of them (53 requests) were addressed to the original Bosch-aa.com.cn, 3% (2 requests) were made to S.webtrends.com and 3% (2 requests) were made to Btm.bosch.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Bosch-aa.com.cn.

Content Size

1.8 MB

After Optimization

560.1 kB

In fact, the total size of Bosch-aa.com.cn main page is 1.8 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. 20% of websites need less resources to load. Javascripts take 717.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 41.3 kB

Original 50.3 kB
After minification 42.0 kB
After compression 9.0 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 8.3 kB, which is 16% 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 41.3 kB or 82% of the original size.

Image Optimization

-11%

Potential reduce by 44.6 kB

Original 395.5 kB
After minification 350.8 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. Obviously, Bosch Aa needs image optimization as it can save up to 44.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 571.3 kB

Original 717.8 kB
After minification 533.2 kB
After compression 146.5 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 571.3 kB or 80% of the original size.

CSS Optimization

-91%

Potential reduce by 533.8 kB

Original 587.6 kB
After minification 447.8 kB
After compression 53.8 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. Bosch-aa.com.cn needs all CSS files to be minified and compressed as it can save up to 533.8 kB or 91% of the original size.

Requests Now

After Optimization

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bosch Aa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 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

[role]s do not have all required [aria-*] attributes

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 valid value for its [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

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

Search Engine Optimization Advices

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

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

Language and Encoding

Language Detected

ZH
Language Claimed

ZH
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bosch-aa.com.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Bosch-aa.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

bosch-aa.com.cn

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

博世汽车售后

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

bosch-aa.com.cn

startpage_1.html

includecss.css

includecss2.css

includecss3.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

bosch-aa.com.cn

startpage_1.html

includecss.css

includecss2.css

includecss3.css

css_noprint.css

header.js

stat.php

footer.js

bg_metanav.gif

bosch_logo_chinese.png

bgNaviMain.png

bgNaviMainInv.png

navseparator.gif

lnkstylecntlink_bottom_sprite_newie9.png

bgNaviDropDown.png

Service_Parts.jpg

lnkstylecntlink_b1.gif

lnkstylesubnavidefault.png

Electrics_and_Accessories.jpg

Engine_and_Systems.jpg

Specials.jpg

Product_Service.jpg

bgNaviMainSub.png

bg_searchinput.gif

btnHeaderSearch.png

bg_searchbigv2.png

banner_tianmao_w982.jpg

kfz_start_bilder_stage_982x350_w982.jpg

bg_slider.gif

scheibenwischer_KB~1_w114.jpg

lnkstylecntlink_sprite.gif

batterien_KB~1_w114.jpg

gluehlampen_KB~1_w114.jpg

filter_key_visual_KB~1_w114.jpg

zuendkerzen_karussell_w114.jpg

umbrella_v21_238x200~1_w114.jpg

Zahnriemen_KB_w114.jpg

hoerner_neu_238x178~1_w114.jpg

sensoren_sensoren_KB~1_w114.jpg

benzin_238x178_w114.jpg

diesel_glas_car_KB~1_w114.jpg

generator_starter_KB~1_w114.jpg