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zisteled.com screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zisteled.com

LED Highbay & Streetlight manufacturer&seller for Europe & Australia_Zisteled

Page Load Speed

9.3 sec in total

First Response

274 ms

Resources Loaded

4.8 sec

Page Rendered

4.2 sec

zisteled.com screenshot

About Website

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

Zisteled is a professional LED industrial and outdoor lights manufacturer and seller for Europe & Australia, focusing on R&D and production of highbay, floodlight, streetlight and customized products....

Visit zisteled.com

Key Findings

We analyzed Zisteled.com page load time and found that the first response time was 274 ms and then it took 9.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

zisteled.com performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value6,170 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.234

53/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

zisteled.com

274 ms

www.zisteled.com

470 ms

font-awesome.min.css

96 ms

owl.carousel.min.css

193 ms

animate.min.css

365 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 99% of them (82 requests) were addressed to the original Zisteled.com, 1% (1 request) were made to 1.staticec.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source 1.staticec.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 167.4 kB (17%)

Content Size

975.6 kB

After Optimization

808.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zisteled.com main page is 975.6 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. 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 649.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 88.8 kB

  • Original 123.6 kB
  • After minification 113.9 kB
  • After compression 34.8 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 88.8 kB or 72% of the original size.

Image Optimization

-6%

Potential reduce by 40.3 kB

  • Original 649.6 kB
  • After minification 609.2 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. Zisteled images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 29.4 kB

  • Original 172.3 kB
  • After minification 172.3 kB
  • After compression 142.8 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 29.4 kB or 17% of the original size.

CSS Optimization

-29%

Potential reduce by 8.8 kB

  • Original 30.2 kB
  • After minification 30.2 kB
  • After compression 21.3 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. Zisteled.com needs all CSS files to be minified and compressed as it can save up to 8.8 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (27%)

Requests Now

78

After Optimization

57

  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zisteled. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zisteled.com

zisteled.com

274 ms

www.zisteled.com

www.zisteled.com

470 ms

font-awesome.min.css

font-awesome.min.css

96 ms

owl.carousel.min.css

owl.carousel.min.css

193 ms

animate.min.css

animate.min.css

365 ms

swiper-3.4.2.min.css

swiper-3.4.2.min.css

293 ms

style-201902.css

style-201902.css

439 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

579 ms

owl.carousel.min.js

owl.carousel.min.js

324 ms

swiper-3.4.2.min.js

swiper-3.4.2.min.js

634 ms

lazysizes.min.js

lazysizes.min.js

447 ms

wow.min.js

wow.min.js

407 ms

index2.js

index2.js

451 ms

core.css

core.css

73 ms

DR.css

DR.css

65 ms

logo1.png

logo1.png

538 ms

sear1.png

sear1.png

530 ms

661639bcc018b.png

661639bcc018b.png

573 ms

65f2a00448bb7.webp

65f2a00448bb7.webp

540 ms

643f663de71a6.webp

643f663de71a6.webp

531 ms

643e125a214e8.webp

643e125a214e8.webp

545 ms

sub4.webp

sub4.webp

546 ms

643e6942bdb2b.webp

643e6942bdb2b.webp

568 ms

643e568899a51.webp

643e568899a51.webp

579 ms

643e44e483a3b.png

643e44e483a3b.png

566 ms

643e48374797e.webp

643e48374797e.webp

569 ms

61d3e61b01f1f.webp

61d3e61b01f1f.webp

574 ms

61d3e526107e1.webp

61d3e526107e1.webp

573 ms

67341a2dd4006.png

67341a2dd4006.png

602 ms

62830199afb58.png

62830199afb58.png

615 ms

672c81bf37330.png

672c81bf37330.png

627 ms

444.webp

444.webp

662 ms

333.webp

333.webp

640 ms

222.webp

222.webp

686 ms

111.webp

111.webp

669 ms

64e5d708b6f39.webp

64e5d708b6f39.webp

643 ms

64e5d74099389.webp

64e5d74099389.webp

660 ms

64e5d7752fad5.webp

64e5d7752fad5.webp

674 ms

wb4.webp

wb4.webp

677 ms

64e5d7989eaa4.webp

64e5d7989eaa4.webp

683 ms

64e5d5dda5d25.webp

64e5d5dda5d25.webp

684 ms

64e5d5f8ee9a3.webp

64e5d5f8ee9a3.webp

684 ms

64e5d60f20e2a.webp

64e5d60f20e2a.webp

728 ms

64e5d626aeaeb.webp

64e5d626aeaeb.webp

740 ms

64e5d63b0ee17.webp

64e5d63b0ee17.webp

740 ms

777.webp

777.webp

733 ms

icon_company.png

icon_company.png

714 ms

666.webp

666.webp

739 ms

613026d3d300a.png

613026d3d300a.png

746 ms

555.webp

555.webp

773 ms

61301fdb9fe8c.png

61301fdb9fe8c.png

310 ms

prev1.png

prev1.png

312 ms

next2.png

next2.png

308 ms

icon_logo.png

icon_logo.png

319 ms

adv1.png

adv1.png

311 ms

adv2.png

adv2.png

304 ms

adv3.png

adv3.png

296 ms

adv4.png

adv4.png

281 ms

adv5.png

adv5.png

272 ms

ns2.webp

ns2.webp

283 ms

ditu.png

ditu.png

299 ms

icon_n1.png

icon_n1.png

295 ms

icon_n2.png

icon_n2.png

300 ms

icon_n3.png

icon_n3.png

277 ms

icon_n4.png

icon_n4.png

262 ms

icon_n5.png

icon_n5.png

253 ms

DIN-Bold.woff

DIN-Bold.woff

164 ms

DINOT-REGULAR.woff

DINOT-REGULAR.woff

162 ms

777.webp

777.webp

76 ms

555.webp

555.webp

96 ms

adv-i-back.jpg

adv-i-back.jpg

98 ms

ns2.webp

ns2.webp

583 ms

ec_cs.js

ec_cs.js

1766 ms

64e5d5dda5d25.webp

64e5d5dda5d25.webp

152 ms

64e5d5f8ee9a3.webp

64e5d5f8ee9a3.webp

185 ms

64e5d60f20e2a.webp

64e5d60f20e2a.webp

195 ms

64e5d626aeaeb.webp

64e5d626aeaeb.webp

131 ms

64e5d63b0ee17.webp

64e5d63b0ee17.webp

195 ms

444.webp

444.webp

203 ms

333.webp

333.webp

284 ms

222.webp

222.webp

293 ms

111.webp

111.webp

285 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

171 ms

Accessibility Review

zisteled.com accessibility score

54

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

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

zisteled.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

zisteled.com SEO score

83

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

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 Zisteled.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 Zisteled.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

zisteled.com

Open Graph description is not detected on the main page of Zisteled. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: