Tools & Wizards About Us
lutools.com screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

lutools.com

hss twist drill bit, masonry drill bit, sds drill bit Manufacturer & Supplier - Quality drill bits, saw blades and other power tools accessories suppl...

Page Load Speed

4.4 sec in total

First Response

306 ms

Resources Loaded

3.3 sec

Page Rendered

842 ms

lutools.com screenshot

About Website

Visit lutools.com now to see the best up-to-date Lu Tools content and also check out these interesting facts you probably never knew about lutools.com

Quality drill bits, saw blades and other power tools accessories supplier! is China manufacturer & supplier who mainly produces hss twist drill bit, masonry drill bit, sds drill bit with years of expe...

Visit lutools.com

Key Findings

We analyzed Lutools.com page load time and found that the first response time was 306 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

lutools.com performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value480 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

www.lutools.com

306 ms

slick.css

100 ms

button.css

45 ms

style.css

40 ms

rrkoKBkpRnoSjiRniSokjqRiiSolkpnpRljSjrrlrniojqnkRmiSiqmlqpklrmrrSRji.css

115 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Lutools.com, 68% (42 requests) were made to Inrnrwxhionj5q.leadongcdn.com and 21% (13 requests) were made to Embed.tawk.to. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Inrnrwxhionj5q.leadongcdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 405.9 kB (9%)

Content Size

4.6 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Lutools.com main page is 4.6 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. 60% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 195.6 kB

  • Original 235.3 kB
  • After minification 235.3 kB
  • After compression 39.6 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 195.6 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 186.5 kB

  • Original 4.2 MB
  • After minification 4.0 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. Lu Tools images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 23.7 kB

  • Original 174.0 kB
  • After minification 174.0 kB
  • After compression 150.3 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 23.7 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (29%)

Requests Now

59

After Optimization

42

  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lu Tools. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.lutools.com

www.lutools.com

306 ms

slick.css

slick.css

100 ms

button.css

button.css

45 ms

style.css

style.css

40 ms

rrkoKBkpRnoSjiRniSokjqRiiSolkpnpRljSjrrlrniojqnkRmiSiqmlqpklrmrrSRji.css

rrkoKBkpRnoSjiRniSokjqRiiSolkpnpRljSjrrlrniojqnkRmiSiqmlqpklrmrrSRji.css

115 ms

js

js

76 ms

speedLazyLoad4.min.js

speedLazyLoad4.min.js

53 ms

banner.jpg

banner.jpg

282 ms

1g9hhmsmf

1g9hhmsmf

199 ms

article_no_pic-300-300.jpg

article_no_pic-300-300.jpg

222 ms

logo.jpg

logo.jpg

345 ms

jiantou.png

jiantou.png

161 ms

banner.jpg

banner.jpg

224 ms

banner.jpg

banner.jpg

251 ms

banner.jpg

banner.jpg

378 ms

banner-m.jpg

banner-m.jpg

215 ms

banner-m.jpg

banner-m.jpg

349 ms

banner-m.jpg

banner-m.jpg

451 ms

video.jpg

video.jpg

393 ms

bg.jpg

bg.jpg

457 ms

1-200-200.jpg

1-200-200.jpg

727 ms

2-200-200.jpg

2-200-200.jpg

566 ms

3-200-200.jpg

3-200-200.jpg

603 ms

4-200-200.jpg

4-200-200.jpg

598 ms

5-200-200.jpg

5-200-200.jpg

586 ms

6-200-200.jpg

6-200-200.jpg

636 ms

01.jpg

01.jpg

799 ms

0.jpg

0.jpg

931 ms

01.jpg

01.jpg

937 ms

03.jpg

03.jpg

800 ms

1.png

1.png

787 ms

2.png

2.png

821 ms

4.png

4.png

913 ms

3.png

3.png

897 ms

5.png

5.png

914 ms

6.png

6.png

925 ms

11-300-300.jpg

11-300-300.jpg

1154 ms

01-300-300.jpg

01-300-300.jpg

1187 ms

02-300-300.jpg

02-300-300.jpg

1136 ms

03-300-300.jpg

03-300-300.jpg

1242 ms

04-300-300.jpg

04-300-300.jpg

1379 ms

bg2.jpg

bg2.jpg

1109 ms

AO2446BTIF2MOZ18YWYTA6-300-300.png

AO2446BTIF2MOZ18YWYTA6-300-300.png

1390 ms

Diamond-Segments-for-Core-Bit0-300-300.jpg

Diamond-Segments-for-Core-Bit0-300-300.jpg

1295 ms

1-300-300.jpg

1-300-300.jpg

1264 ms

iconfont.woff

iconfont.woff

1245 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1151 ms

89-Y-0A-7_GBC58TRN6P-300-300.png

89-Y-0A-7_GBC58TRN6P-300-300.png

1328 ms

bg3.jpg

bg3.jpg

1299 ms

LOGO.png

LOGO.png

1189 ms

twk-arr-find-polyfill.js

twk-arr-find-polyfill.js

64 ms

twk-object-values-polyfill.js

twk-object-values-polyfill.js

77 ms

twk-event-polyfill.js

twk-event-polyfill.js

57 ms

twk-entries-polyfill.js

twk-entries-polyfill.js

61 ms

twk-iterator-polyfill.js

twk-iterator-polyfill.js

76 ms

twk-promise-polyfill.js

twk-promise-polyfill.js

64 ms

twk-main.js

twk-main.js

66 ms

twk-vendor.js

twk-vendor.js

75 ms

twk-chunk-vendors.js

twk-chunk-vendors.js

91 ms

twk-chunk-common.js

twk-chunk-common.js

80 ms

twk-runtime.js

twk-runtime.js

80 ms

twk-app.js

twk-app.js

154 ms

Accessibility Review

lutools.com accessibility score

80

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

Heading elements are not in a sequentially-descending order

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

lutools.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

lutools.com SEO score

79

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 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 Lutools.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 Lutools.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

lutools.com

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