Tools & Wizards About Us
rockfilter.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

rockfilter.com

Air Car Filters | Cabin Filter manufacturer - Pingxiang RockFilter Industrial Co.,Ltd.

Page Load Speed

4.8 sec in total

First Response

54 ms

Resources Loaded

4.5 sec

Page Rendered

268 ms

rockfilter.com screenshot

About Website

Welcome to rockfilter.com homepage info - get ready to check Rock Filter best content right away, or after learning these important things about rockfilter.com

PINGXIANG ROCKFILTER INDUSTRIAL CO., LTD. is a professional factory and quality filter supplier of Heavy Duty and Light Duty Air Filters, Passenger Car Air Filters, Cabin Filters, Ecological Oil Filte...

Visit rockfilter.com

Key Findings

We analyzed Rockfilter.com page load time and found that the first response time was 54 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

rockfilter.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value1.133

1/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

rockfilter.com

54 ms

rockfilter.com

250 ms

www.rockfilter.com

34 ms

www.rockfilter.com

338 ms

all.css

15 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 51% of them (39 requests) were addressed to the original Rockfilter.com, 39% (30 requests) were made to Data.pop800.com and 3% (2 requests) were made to U.pop800.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Data.pop800.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.7 kB (10%)

Content Size

825.6 kB

After Optimization

742.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rockfilter.com main page is 825.6 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. 35% of websites need less resources to load. Images take 710.7 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 43.6 kB

  • Original 54.8 kB
  • After minification 54.7 kB
  • After compression 11.1 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 43.6 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 28.9 kB

  • Original 710.7 kB
  • After minification 681.9 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. Rock Filter images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 11.1 kB

  • Original 52.8 kB
  • After minification 52.8 kB
  • After compression 41.8 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 11.1 kB or 21% of the original size.

CSS Optimization

-1%

Potential reduce by 66 B

  • Original 7.3 kB
  • After minification 7.3 kB
  • After compression 7.3 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. Rockfilter.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 32 (44%)

Requests Now

72

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rock Filter. 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 as a result speed up the page load time.

Network Requests Diagram

rockfilter.com

rockfilter.com

54 ms

rockfilter.com

rockfilter.com

250 ms

www.rockfilter.com

www.rockfilter.com

34 ms

www.rockfilter.com

www.rockfilter.com

338 ms

all.css

all.css

15 ms

jquery.js

jquery.js

32 ms

jquery.slitslider.js

jquery.slitslider.js

41 ms

skip.js

skip.js

30 ms

banner.js

banner.js

56 ms

email-decode.min.js

email-decode.min.js

54 ms

line.js

line.js

26 ms

js

js

61 ms

snippet.js

snippet.js

39 ms

800.js

800.js

1186 ms

gas-1.10.1.min.js

gas-1.10.1.min.js

236 ms

logo.jpg

logo.jpg

321 ms

nav.jpg

nav.jpg

302 ms

banner1.jpg

banner1.jpg

390 ms

banner2.jpg

banner2.jpg

473 ms

banner3.jpg

banner3.jpg

424 ms

banner4.jpg

banner4.jpg

471 ms

lei1.jpg

lei1.jpg

315 ms

lei2.jpg

lei2.jpg

625 ms

lei3.jpg

lei3.jpg

640 ms

left.jpg

left.jpg

638 ms

5.jpg

5.jpg

753 ms

1.jpg

1.jpg

805 ms

2.jpg

2.jpg

797 ms

3.jpg

3.jpg

940 ms

4.jpg

4.jpg

945 ms

right.jpg

right.jpg

889 ms

about.jpg

about.jpg

1013 ms

1340683335.jpg

1340683335.jpg

809 ms

1341030313.jpg

1341030313.jpg

819 ms

1341323065.jpg

1341323065.jpg

822 ms

1341389311.jpg

1341389311.jpg

835 ms

1341389807.jpg

1341389807.jpg

843 ms

1341826301.jpg

1341826301.jpg

848 ms

1639120703.JPG

1639120703.JPG

1097 ms

1639123319.JPG

1639123319.JPG

1110 ms

rockfilter_21.jpg

rockfilter_21.jpg

1148 ms

advantage.jpg

advantage.jpg

1273 ms

0013920_47.png

0013920_47.png

1194 ms

800.css

800.css

1593 ms

skin.css

skin.css

1478 ms

default.gif

default.gif

1155 ms

count.do

count.do

1220 ms

skype_online.gif

skype_online.gif

698 ms

top_left.gif

top_left.gif

839 ms

closed.gif

closed.gif

700 ms

top_right.gif

top_right.gif

1403 ms

callme_en.gif

callme_en.gif

927 ms

notcallme_en.gif

notcallme_en.gif

929 ms

foot_left.gif

foot_left.gif

1727 ms

foot_bg.gif

foot_bg.gif

1461 ms

foot_right.gif

foot_right.gif

1170 ms

top_left.gif

top_left.gif

1243 ms

but_down.gif

but_down.gif

1470 ms

closed.gif

closed.gif

1430 ms

top_right.gif

top_right.gif

1645 ms

name.gif

name.gif

1501 ms

mobile.gif

mobile.gif

1530 ms

email.gif

email.gif

2014 ms

submit_en.gif

submit_en.gif

1711 ms

foot_left.gif

foot_left.gif

1723 ms

foot_bg.gif

foot_bg.gif

1598 ms

foot_right.gif

foot_right.gif

1823 ms

top_bg.gif

top_bg.gif

1900 ms

mid_bg.gif

mid_bg.gif

1940 ms

top_bg.gif

top_bg.gif

1793 ms

mid_bg.gif

mid_bg.gif

1799 ms

default.gif

default.gif

1165 ms

cmi.do

cmi.do

243 ms

pic.gif

pic.gif

534 ms

facepic.png

facepic.png

407 ms

shrink.gif

shrink.gif

1027 ms

control_en.png

control_en.png

663 ms

Accessibility Review

rockfilter.com accessibility score

52

Accessibility Issues

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

rockfilter.com best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

rockfilter.com SEO score

92

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

Image elements do not have [alt] attributes

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 uses legible font sizes

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 Rockfilter.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 Rockfilter.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

rockfilter.com

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