Tools & Wizards About Us
cnvbolt.com screenshot

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

cnvbolt.com

oil refinery machine,used oil to diesel machine,used oil to base oil machine,oil purification machine supplier-VBOLT

Page Load Speed

6.5 sec in total

First Response

683 ms

Resources Loaded

4.2 sec

Page Rendered

1.6 sec

cnvbolt.com screenshot

About Website

Click here to check amazing Cn VBOLT content. Otherwise, check out these important facts you probably never knew about cnvbolt.com

Chongqing Vbolt Machinery Manufacturing Co., Ltd.: Vbolt are the leading professional manufacturer of oil recycle distillation machine more than 12 years. Our main machine is oil recycling machine, oi...

Visit cnvbolt.com

Key Findings

We analyzed Cnvbolt.com page load time and found that the first response time was 683 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

cnvbolt.com performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value23.7 s

0/100

25%

SI (Speed Index)

Value15.8 s

0/100

10%

TBT (Total Blocking Time)

Value5,320 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.495

16/100

15%

TTI (Time to Interactive)

Value24.8 s

0/100

10%

Network Requests Diagram

cnvbolt.com

683 ms

www.vboltoilrecycling.com

380 ms

www.vboltoilrecycling.com

291 ms

swiper.min.css

357 ms

style.css

72 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cnvbolt.com, 67% (64 requests) were made to Vboltoilrecycling.com and 11% (11 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Vboltoilrecycling.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.8 kB (4%)

Content Size

3.2 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cnvbolt.com main page is 3.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 30.4 kB

  • Original 40.1 kB
  • After minification 39.2 kB
  • After compression 9.7 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 30.4 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 80.2 kB

  • Original 2.6 MB
  • After minification 2.5 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. Cn VBOLT images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 15.6 kB

  • Original 454.0 kB
  • After minification 454.0 kB
  • After compression 438.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 2.6 kB

  • Original 132.7 kB
  • After minification 132.7 kB
  • After compression 130.1 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. Cnvbolt.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (41%)

Requests Now

91

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cn VBOLT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cnvbolt.com

cnvbolt.com

683 ms

www.vboltoilrecycling.com

www.vboltoilrecycling.com

380 ms

www.vboltoilrecycling.com

www.vboltoilrecycling.com

291 ms

swiper.min.css

swiper.min.css

357 ms

style.css

style.css

72 ms

jquery.js

jquery.js

362 ms

sitecommon.js

sitecommon.js

373 ms

other.css

other.css

142 ms

Site_Common.js

Site_Common.js

391 ms

swiper.min.js

swiper.min.js

391 ms

count1.js

count1.js

389 ms

liteyt.js

liteyt.js

388 ms

float28659.js

float28659.js

209 ms

im.js

im.js

205 ms

logo202007220952492115348.png

logo202007220952492115348.png

71 ms

ijCA92UI7wU

ijCA92UI7wU

174 ms

W5kbrBGnvNg

W5kbrBGnvNg

464 ms

EXtuatlyCpU

EXtuatlyCpU

532 ms

icon-phone-w.png

icon-phone-w.png

815 ms

ba202007311631525880227.jpg

ba202007311631525880227.jpg

1728 ms

p202108061730532066862.png

p202108061730532066862.png

1346 ms

p202008111530173593685.jpg

p202008111530173593685.jpg

918 ms

p202201241415109161883.png

p202201241415109161883.png

1735 ms

p202008111531252710986.jpg

p202008111531252710986.jpg

1343 ms

p202008111531112572081.jpg

p202008111531112572081.jpg

1344 ms

cus.jpg

cus.jpg

957 ms

country1.jpg

country1.jpg

1409 ms

country2.jpg

country2.jpg

1725 ms

country3.jpg

country3.jpg

1731 ms

country4.jpg

country4.jpg

1727 ms

country5.jpg

country5.jpg

1731 ms

country6.jpg

country6.jpg

1860 ms

1241118126353.png

1241118126353.png

2003 ms

b2.jpg

b2.jpg

1735 ms

tec.jpg

tec.jpg

1865 ms

1.1.jpg

1.1.jpg

1865 ms

1.2.jpg

1.2.jpg

1865 ms

22.jpg

22.jpg

1860 ms

3.jpg

3.jpg

2001 ms

4.jpg

4.jpg

1865 ms

55.jpg

55.jpg

2002 ms

77.jpg

77.jpg

2003 ms

ind.jpg

ind.jpg

2004 ms

n20240228102301e8dfa.jpg

n20240228102301e8dfa.jpg

2000 ms

icon-rightbtn.png

icon-rightbtn.png

2004 ms

n20240223110544838fb.jpg

n20240223110544838fb.jpg

2005 ms

n2024020514283590357.jpg

n2024020514283590357.jpg

2118 ms

n202402021108338749c.png

n202402021108338749c.png

2233 ms

n202401231422247d35b.png

n202401231422247d35b.png

2119 ms

n20240117144011937cb.jpg

n20240117144011937cb.jpg

2223 ms

icon-facebook.png

icon-facebook.png

2224 ms

icon-instagram.png

icon-instagram.png

2224 ms

icon-ie.png

icon-ie.png

2222 ms

flag.css

flag.css

772 ms

s

s

2169 ms

www-player.css

www-player.css

16 ms

www-embed-player.js

www-embed-player.js

40 ms

base.js

base.js

69 ms

ad_status.js

ad_status.js

758 ms

www-player.css

www-player.css

359 ms

www-embed-player.js

www-embed-player.js

393 ms

base.js

base.js

504 ms

DSoJMcIoHqzVzZNOHVArBsoxRO1jQwr0ATQZuHVp9wo.js

DSoJMcIoHqzVzZNOHVArBsoxRO1jQwr0ATQZuHVp9wo.js

748 ms

embed.js

embed.js

162 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

566 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

568 ms

icon-tel.png

icon-tel.png

1420 ms

app.css

app.css

1291 ms

id

id

397 ms

chunk-vendors.js

chunk-vendors.js

1280 ms

embed.js

embed.js

25 ms

Create

Create

388 ms

Create

Create

393 ms

Create

Create

522 ms

app.js

app.js

893 ms

icon-phone.png

icon-phone.png

941 ms

icon-envelope.png

icon-envelope.png

942 ms

id

id

37 ms

email.png

email.png

563 ms

skype.png

skype.png

561 ms

whats.png

whats.png

563 ms

phone.png

phone.png

654 ms

erwei66092020200807.jpg

erwei66092020200807.jpg

600 ms

GenerateIT

GenerateIT

185 ms

GenerateIT

GenerateIT

182 ms

GenerateIT

GenerateIT

82 ms

icon-1.png

icon-1.png

108 ms

icon-2.png

icon-2.png

113 ms

icon-3.png

icon-3.png

114 ms

icon-4.png

icon-4.png

115 ms

gic-fuwu.png

gic-fuwu.png

113 ms

serhead.png

serhead.png

123 ms

back.png

back.png

129 ms

img.png

img.png

130 ms

fj.png

fj.png

131 ms

send.png

send.png

163 ms

Accessibility Review

cnvbolt.com accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Best Practices

cnvbolt.com best practices score

58

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

High

Page has valid source maps

SEO Factors

cnvbolt.com SEO score

69

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Mobile Friendly

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/).

Impact

Issue

High

Document doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

cnvbolt.com

Open Graph data is detected on the main page of Cn VBOLT. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: