Tools & Wizards About Us
jwell-cn.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

jwell-cn.com

china car dvd, car dvd player, car video, car dvd with gps, car monitor, car gps manufacturer - J-Well Industrial Co., Ltd. ,J-Well Industrial Co., Lt...

Page Load Speed

16.4 sec in total

First Response

963 ms

Resources Loaded

15 sec

Page Rendered

355 ms

jwell-cn.com screenshot

About Website

Visit jwell-cn.com now to see the best up-to-date J Well Cn content and also check out these interesting facts you probably never knew about jwell-cn.com

As professional manufacturer of car DVD players, we can provide best car DVD player with multi-functions, such as it can be used as car CD player or dash DVD player. For more car DVD players, please c...

Visit jwell-cn.com

Key Findings

We analyzed Jwell-cn.com page load time and found that the first response time was 963 ms and then it took 15.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

jwell-cn.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value2.4 s

99/100

10%

Network Requests Diagram

jwell-cn.com

963 ms

head-n.css

432 ms

Content-n.css

659 ms

other.css

436 ms

JS.js

453 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that all of those requests were addressed to Jwell-cn.com and no external sources were called. The less responsive or slowest element that took the longest time to load (13 sec) belongs to the original domain Jwell-cn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 91.2 kB (11%)

Content Size

817.1 kB

After Optimization

725.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jwell-cn.com main page is 817.1 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. Images take 740.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 28.3 kB

  • Original 34.9 kB
  • After minification 33.9 kB
  • After compression 6.5 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 28.3 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 50.8 kB

  • Original 740.7 kB
  • After minification 689.9 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. J Well Cn images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 8.7 kB

  • Original 33.6 kB
  • After minification 33.6 kB
  • After compression 24.9 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 8.7 kB or 26% of the original size.

CSS Optimization

-42%

Potential reduce by 3.3 kB

  • Original 7.9 kB
  • After minification 7.9 kB
  • After compression 4.6 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. Jwell-cn.com needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 42% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (16%)

Requests Now

44

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Well Cn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jwell-cn.com

jwell-cn.com

963 ms

head-n.css

head-n.css

432 ms

Content-n.css

Content-n.css

659 ms

other.css

other.css

436 ms

JS.js

JS.js

453 ms

gsim_msn.js

gsim_msn.js

462 ms

thickbox.css

thickbox.css

471 ms

jquery.js

jquery.js

1305 ms

thickbox-compressed.js

thickbox-compressed.js

872 ms

skypeCheck.js

skypeCheck.js

453 ms

bg1.jpg

bg1.jpg

631 ms

page_03.jpg

page_03.jpg

388 ms

page_07.jpg

page_07.jpg

383 ms

nav1bg.gif

nav1bg.gif

405 ms

ad2.jpg

ad2.jpg

7786 ms

sidebarbg.gif

sidebarbg.gif

386 ms

page_10.gif

page_10.gif

598 ms

2014_new_14.1__roof_mount_dvd_player_with_mp5_wireless_games_s_RF-1420D.jpg

2014_new_14.1__roof_mount_dvd_player_with_mp5_wireless_games_s_RF-1420D.jpg

2263 ms

2014_new_154.4__roof_mounted_dvd_player_with_mp5_wireless_games_s_RF-1545D.jpg

2014_new_154.4__roof_mounted_dvd_player_with_mp5_wireless_games_s_RF-1545D.jpg

3304 ms

22_inch_roof_mount_car_monitor_with_sd_usb_s_RF-2289.jpg

22_inch_roof_mount_car_monitor_with_sd_usb_s_RF-2289.jpg

2452 ms

14.1_inch_flip_down_car_monitor_roof_mount_car_monitor_with_built_in_dvd_player_s_RF1418D.jpg

14.1_inch_flip_down_car_monitor_roof_mount_car_monitor_with_built_in_dvd_player_s_RF1418D.jpg

1027 ms

15.6_inch_flip_down_car_monitor_roof_mount_car_monitor_with_built_in_dvd_player_s_RF1515D.jpg

15.6_inch_flip_down_car_monitor_roof_mount_car_monitor_with_built_in_dvd_player_s_RF1515D.jpg

3896 ms

17_inch_car_lcd_monitor_with_dvd_player_for_bus_roof_mount_s_RF1780D.jpg

17_inch_car_lcd_monitor_with_dvd_player_for_bus_roof_mount_s_RF1780D.jpg

3858 ms

17.3_inch_car_roof_mount_monitor_with_ir_fm_slim_1920_x_1080_s_RF1738.jpg

17.3_inch_car_roof_mount_monitor_with_ir_fm_slim_1920_x_1080_s_RF1738.jpg

3158 ms

2014_new_12.1_inch_led_screen_hdmi_monitor_with_vga_av_tv_speaker_s_PC-A121.jpg

2014_new_12.1_inch_led_screen_hdmi_monitor_with_vga_av_tv_speaker_s_PC-A121.jpg

4466 ms

professional_12_inch_tft_lcd_monitor_with_av___tv__analog____vga___hdmi_s_T127.jpg

professional_12_inch_tft_lcd_monitor_with_av___tv__analog____vga___hdmi_s_T127.jpg

7183 ms

hd_5_inch_car_monitor_640x480_with_good_screen_for_heigh_brightness_s_HM-5002.jpg

hd_5_inch_car_monitor_640x480_with_good_screen_for_heigh_brightness_s_HM-5002.jpg

11132 ms

17.3_inch_car_roof_mount_monitor_with_usb_sd_hdmi_ir_fm_slim_1920_x_1080_s_RF-1730HDMI.jpg

17.3_inch_car_roof_mount_monitor_with_usb_sd_hdmi_ir_fm_slim_1920_x_1080_s_RF-1730HDMI.jpg

5945 ms

9_inch_hd_lcd_monitor_car_video_player_s_HM-968.jpg

9_inch_hd_lcd_monitor_car_video_player_s_HM-968.jpg

5594 ms

7inch_tft_lcd_4_ch_video_inputs_car_rearview_quad_split_monitor_s_JW-710.jpg

7inch_tft_lcd_4_ch_video_inputs_car_rearview_quad_split_monitor_s_JW-710.jpg

6717 ms

12.1_inch_flip_down_slot_in_tft_lcd_multi_media_dvd_player_s_RF-1288D-1.jpg

12.1_inch_flip_down_slot_in_tft_lcd_multi_media_dvd_player_s_RF-1288D-1.jpg

9358 ms

10.4_inch_touch_screen_lcd_monitor_with_vga_port_s_MPC-104T.jpg

10.4_inch_touch_screen_lcd_monitor_with_vga_port_s_MPC-104T.jpg

8757 ms

9_inch_hd_led_headrest_monitor_with_slot_in_dvd_player_s_JHR-9917D.jpg

9_inch_hd_led_headrest_monitor_with_slot_in_dvd_player_s_JHR-9917D.jpg

8991 ms

fa.jpg

fa.jpg

11217 ms

ppp.jpg

ppp.jpg

8232 ms

p2.gif

p2.gif

8566 ms

logo_skype.png

logo_skype.png

9015 ms

logo_msn.png

logo_msn.png

9188 ms

logo_email.jpg

logo_email.jpg

10296 ms

send_icon.jpg

send_icon.jpg

10463 ms

tel_icon.png

tel_icon.png

10419 ms

dossier-favoris.png

dossier-favoris.png

9646 ms

Certificationimg.jpg

Certificationimg.jpg

9878 ms

pay.jpg

pay.jpg

12958 ms

loadingAnimation.gif

loadingAnimation.gif

10676 ms

Accessibility Review

jwell-cn.com accessibility score

46

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

jwell-cn.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

SEO Factors

jwell-cn.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jwell-cn.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Jwell-cn.com main page’s claimed encoding is . 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

jwell-cn.com

Open Graph description is not detected on the main page of J Well Cn. 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: