Tools & Wizards About Us
hzelk.com screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

hzelk.com

China MAPP GAS, MAP PRO GAS, Single Refrigerant Gas, Blend Refrigerant Gas Manufacturers, Suppliers, Factory - ELK

Page Load Speed

3.4 sec in total

First Response

389 ms

Resources Loaded

2.5 sec

Page Rendered

459 ms

hzelk.com screenshot

About Website

Click here to check amazing Hz ELK content. Otherwise, check out these important facts you probably never knew about hzelk.com

Hangzhou ELK Refrigerant High-Tech Co.,Ltd: ELK is professional manufacturer of brazing gas MAPP GAS, MAP PRO GAS, PROPANE GAS, refrigerant gas R134A, R404A, R407C, R410A, R417A, etc.

Visit hzelk.com

Key Findings

We analyzed Hzelk.com page load time and found that the first response time was 389 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

hzelk.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

79/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.268

46/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

hzelk.com

389 ms

www.hzelk.com

522 ms

style.css

294 ms

jquery.js

281 ms

sitecommon.js

280 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 63% of them (37 requests) were addressed to the original Hzelk.com, 19% (11 requests) were made to Css02.v15cdn.com and 10% (6 requests) were made to Js01.v15cdn.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Hzelk.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.1 kB (3%)

Content Size

1.9 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hzelk.com main page is 1.9 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. 40% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.9 kB

  • Original 26.3 kB
  • After minification 25.3 kB
  • After compression 6.4 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 19.9 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 28.8 kB

  • Original 1.8 MB
  • After minification 1.8 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. Hz ELK images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 1.3 kB

  • Original 38.7 kB
  • After minification 38.7 kB
  • After compression 37.4 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

-1%

Potential reduce by 129 B

  • Original 8.9 kB
  • After minification 8.9 kB
  • After compression 8.7 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. Hzelk.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (37%)

Requests Now

57

After Optimization

36

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hz ELK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

hzelk.com

hzelk.com

389 ms

www.hzelk.com

www.hzelk.com

522 ms

style.css

style.css

294 ms

jquery.js

jquery.js

281 ms

sitecommon.js

sitecommon.js

280 ms

Site_Common.js

Site_Common.js

285 ms

flash.js

flash.js

280 ms

honet_xl.js

honet_xl.js

362 ms

count2.js

count2.js

343 ms

style.js

style.js

366 ms

liteyt.js

liteyt.js

283 ms

js

js

70 ms

js

js

126 ms

gtm.js

gtm.js

42 ms

logo202011050922089033898.png

logo202011050922089033898.png

131 ms

topLine_03.webp

topLine_03.webp

22 ms

facebook_03.webp

facebook_03.webp

24 ms

fTwo_05.webp

fTwo_05.webp

39 ms

youtube2.webp

youtube2.webp

41 ms

fFour_09.webp

fFour_09.webp

39 ms

fFive_11.webp

fFive_11.webp

41 ms

fSix_13.webp

fSix_13.webp

39 ms

paiLine_03.webp

paiLine_03.webp

41 ms

footBg_02.webp

footBg_02.webp

42 ms

ba202011050916426875417.jpg

ba202011050916426875417.jpg

745 ms

ba202011061731107046185.jpg

ba202011061731107046185.jpg

846 ms

ba202101131535218733946.jpg

ba202101131535218733946.jpg

888 ms

searchBtn_03.jpg

searchBtn_03.jpg

458 ms

probg.jpg

probg.jpg

1135 ms

mapp-pro-gas-cylinder08552661903.jpg

mapp-pro-gas-cylinder08552661903.jpg

457 ms

propane19024907677.jpg

propane19024907677.jpg

601 ms

mapp-gas-cylinder02218096450.jpg

mapp-gas-cylinder02218096450.jpg

678 ms

map-pro-gas-cylinder20080071259.jpg

map-pro-gas-cylinder20080071259.jpg

711 ms

mapp-pro-gas-cylinder-hand-torch-jh-1st10007674263.jpg

mapp-pro-gas-cylinder-hand-torch-jh-1st10007674263.jpg

776 ms

brazing-rod1e869.jpg

brazing-rod1e869.jpg

815 ms

1l-can-refrigerant-r600a36049024172.jpg

1l-can-refrigerant-r600a36049024172.jpg

837 ms

pure-propane-r290-refrigerant41225540344.jpg

pure-propane-r290-refrigerant41225540344.jpg

848 ms

1.jpg

1.jpg

959 ms

2.jpg

2.jpg

912 ms

3.jpg

3.jpg

920 ms

4.jpg

4.jpg

922 ms

serbg.jpg

serbg.jpg

1105 ms

serviceLine_03.png

serviceLine_03.png

986 ms

s1.png

s1.png

993 ms

s2.png

s2.png

996 ms

s3.png

s3.png

1034 ms

s4.png

s4.png

1059 ms

s5.png

s5.png

1065 ms

s6.png

s6.png

1068 ms

home-news.jpg

home-news.jpg

1239 ms

konbg.jpg

konbg.jpg

1218 ms

ce.jpg

ce.jpg

1217 ms

dot.jpg

dot.jpg

1216 ms

iso.jpg

iso.jpg

1216 ms

REACH.jpg

REACH.jpg

1217 ms

sgs.jpg

sgs.jpg

1293 ms

erwei72130120201113.jpg

erwei72130120201113.jpg

1290 ms

s

s

1270 ms

zd_ctr.webp

zd_ctr.webp

42 ms

Accessibility Review

hzelk.com accessibility score

75

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

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

hzelk.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hzelk.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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hzelk.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 Hzelk.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

hzelk.com

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