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jeffer-grinder.com screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jeffer-grinder.com

knife grinder | TAIWAN | Jeffer Machinery Co., Ltd.

Page Load Speed

2.7 sec in total

First Response

158 ms

Resources Loaded

2.4 sec

Page Rendered

58 ms

jeffer-grinder.com screenshot

About Website

Visit jeffer-grinder.com now to see the best up-to-date Jeffer Grinder content and also check out these interesting facts you probably never knew about jeffer-grinder.com

Jeffer Machinery Co., Ltd. is a professional knife grinder manufacturer. We manufacture carbide tool grinder and Carbide Saw Grinder incorporating modern ......

Visit jeffer-grinder.com

Key Findings

We analyzed Jeffer-grinder.com page load time and found that the first response time was 158 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

jeffer-grinder.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value990 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

www.jeffer-grinder.com

158 ms

minified.js

52 ms

focus-within-polyfill.js

51 ms

polyfill.min.js

1233 ms

thunderbolt-commons.b70ee867.bundle.min.js

81 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Jeffer-grinder.com, 35% (16 requests) were made to Static.wixstatic.com and 33% (15 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 543.2 kB (35%)

Content Size

1.6 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jeffer-grinder.com main page is 1.6 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. 50% of websites need less resources to load. Images take 760.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 306.5 kB

  • Original 405.4 kB
  • After minification 403.7 kB
  • After compression 98.9 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. 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 306.5 kB or 76% of the original size.

Image Optimization

-12%

Potential reduce by 94.0 kB

  • Original 760.7 kB
  • After minification 666.7 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, Jeffer Grinder needs image optimization as it can save up to 94.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-36%

Potential reduce by 142.7 kB

  • Original 398.9 kB
  • After minification 398.9 kB
  • After compression 256.3 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 142.7 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (32%)

Requests Now

31

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jeffer Grinder. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.jeffer-grinder.com

www.jeffer-grinder.com

158 ms

minified.js

minified.js

52 ms

focus-within-polyfill.js

focus-within-polyfill.js

51 ms

polyfill.min.js

polyfill.min.js

1233 ms

thunderbolt-commons.b70ee867.bundle.min.js

thunderbolt-commons.b70ee867.bundle.min.js

81 ms

main.317ed945.bundle.min.js

main.317ed945.bundle.min.js

83 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

80 ms

lodash.min.js

lodash.min.js

83 ms

react.production.min.js

react.production.min.js

80 ms

react-dom.production.min.js

react-dom.production.min.js

81 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

81 ms

db830c_f4314d28021f443da6f08bea6df734ac.png

db830c_f4314d28021f443da6f08bea6df734ac.png

158 ms

newLOGO.png

newLOGO.png

265 ms

035244_04cbb98f178e46efb847ad15f5ca060b.jpg

035244_04cbb98f178e46efb847ad15f5ca060b.jpg

283 ms

108a8b_5f3129f7bd7444ce8273db0854e950fcf000.jpg

108a8b_5f3129f7bd7444ce8273db0854e950fcf000.jpg

398 ms

2.png

2.png

430 ms

2.png

2.png

525 ms

108a8b_3af5eaf21e2544818e52bf5949d1ab1f~mv2.png

108a8b_3af5eaf21e2544818e52bf5949d1ab1f~mv2.png

431 ms

%E7%89%B9%E6%95%88%E5%AD%972-01.png

%E7%89%B9%E6%95%88%E5%AD%972-01.png

584 ms

c6e39395340740f8ba3c1cd77f051c9e.jpg

c6e39395340740f8ba3c1cd77f051c9e.jpg

383 ms

ASG-800.png

ASG-800.png

640 ms

db830c_efb65b02ffc84003bac40e836f0ccda6.png

db830c_efb65b02ffc84003bac40e836f0ccda6.png

655 ms

db830c_9d88ed5a01cd47149ac36ff8e2e0bf96.png

db830c_9d88ed5a01cd47149ac36ff8e2e0bf96.png

768 ms

d770bb_5e5d31f78ebc4d0cb31118060230642a~mv2_d_2221_2246_s_2.png

d770bb_5e5d31f78ebc4d0cb31118060230642a~mv2_d_2221_2246_s_2.png

808 ms

db830c_ff056920a8ff4d65a6b8c26b264feee9.png

db830c_ff056920a8ff4d65a6b8c26b264feee9.png

762 ms

d770bb_51a010b7bfca4fc9ba291be3850e2b2a.png

d770bb_51a010b7bfca4fc9ba291be3850e2b2a.png

853 ms

8179fe_5813c1298fda4e1cb0f8592b1fb2972a~mv2.png

8179fe_5813c1298fda4e1cb0f8592b1fb2972a~mv2.png

871 ms

bundle.min.js

bundle.min.js

37 ms

87 ms

91 ms

96 ms

92 ms

92 ms

92 ms

120 ms

125 ms

133 ms

130 ms

131 ms

deprecation-en.v5.html

deprecation-en.v5.html

5 ms

bolt-performance

bolt-performance

19 ms

deprecation-style.v5.css

deprecation-style.v5.css

7 ms

right-arrow.svg

right-arrow.svg

17 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

4 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

7 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

7 ms

Accessibility Review

jeffer-grinder.com accessibility score

89

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.

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

jeffer-grinder.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

jeffer-grinder.com SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jeffer-grinder.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Chinese language. Our system also found out that Jeffer-grinder.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

jeffer-grinder.com

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