Tools & Wizards About Us
tz-mask.com screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

tz-mask.com

China Face Masks Manufacturers, Wholesale Dust Masks Factory

Page Load Speed

29.5 sec in total

First Response

210 ms

Resources Loaded

23 sec

Page Rendered

6.3 sec

tz-mask.com screenshot

About Website

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

Zhejiang Tianzhen Industry & Trade Co, Ltd is China Face Masks Manufacturers and dust Masks Factory, offer wholesale disposable dust Face Masks for sale online.

Visit tz-mask.com

Key Findings

We analyzed Tz-mask.com page load time and found that the first response time was 210 ms and then it took 29.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

tz-mask.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value5,130 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.288

42/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

Network Requests Diagram

tz-mask.com

210 ms

www.tz-mask.com

507 ms

styles.css

120 ms

prettyPhoto.css

142 ms

lightbox.min.css

153 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 99% of them (68 requests) were addressed to the original Tz-mask.com, 1% (1 request) were made to S4.cnzz.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source S4.cnzz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 404.4 kB (24%)

Content Size

1.7 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Tz-mask.com main page is 1.7 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-97%

Potential reduce by 386.5 kB

  • Original 400.3 kB
  • After minification 395.6 kB
  • After compression 13.8 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 386.5 kB or 97% of the original size.

Image Optimization

-1%

Potential reduce by 7.7 kB

  • Original 1.3 MB
  • After minification 1.3 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. Tz Mask images are well optimized though.

CSS Optimization

-25%

Potential reduce by 10.2 kB

  • Original 40.4 kB
  • After minification 40.4 kB
  • After compression 30.1 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. Tz-mask.com needs all CSS files to be minified and compressed as it can save up to 10.2 kB or 25% of the original size.

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 Tz Mask. 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 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tz-mask.com

tz-mask.com

210 ms

www.tz-mask.com

www.tz-mask.com

507 ms

styles.css

styles.css

120 ms

prettyPhoto.css

prettyPhoto.css

142 ms

lightbox.min.css

lightbox.min.css

153 ms

jquery.js

jquery.js

185 ms

jquery-migrate.min.js

jquery-migrate.min.js

145 ms

slick.css

slick.css

152 ms

basic.css

basic.css

237 ms

main.css

main.css

252 ms

font-awesome.min.css

font-awesome.min.css

266 ms

animate.min.css

animate.min.css

326 ms

jquery.js

jquery.js

317 ms

qrcode.min.js

qrcode.min.js

318 ms

main.js

main.js

365 ms

slick.js

slick.js

366 ms

wow.min.js

wow.min.js

385 ms

1013_361_.js

1013_361_.js

434 ms

hwaq.js

hwaq.js

485 ms

index_js.js

index_js.js

485 ms

scripts.js

scripts.js

486 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

393 ms

jquery.touchwipe.min.js

jquery.touchwipe.min.js

492 ms

jquery.lightbox.min.js

jquery.lightbox.min.js

549 ms

wp-embed.min.js

wp-embed.min.js

566 ms

top-img.png

top-img.png

136 ms

logo.png

logo.png

135 ms

us.jpg

us.jpg

175 ms

cn.jpg

cn.jpg

183 ms

banner.jpg

banner.jpg

237 ms

banner1.jpg

banner1.jpg

205 ms

i-adv-img1.png

i-adv-img1.png

289 ms

i-adv-img2.png

i-adv-img2.png

304 ms

Disposable-protective-mask-2-1.png

Disposable-protective-mask-2-1.png

247 ms

Disposable-protective-mask-1-1-3.png

Disposable-protective-mask-1-1-3.png

348 ms

Disposable-surgical-mask-with-bacteria-1-1.png

Disposable-surgical-mask-with-bacteria-1-1.png

385 ms

KN95-1-3.png

KN95-1-3.png

332 ms

init-3-icon1.png

init-3-icon1.png

366 ms

init-3-icon2.png

init-3-icon2.png

323 ms

init-3-icon3.png

init-3-icon3.png

424 ms

init-3-icon4.png

init-3-icon4.png

359 ms

init-3-icon5.png

init-3-icon5.png

460 ms

init-3-icon6.png

init-3-icon6.png

465 ms

init-3-img.jpg

init-3-img.jpg

528 ms

init-4-img1.jpg

init-4-img1.jpg

506 ms

footer-logo.png

footer-logo.png

497 ms

DINPRO-REGULAR.ttf

DINPRO-REGULAR.ttf

683 ms

Poppins-Regular.ttf

Poppins-Regular.ttf

614 ms

roboto-regular.ttf

roboto-regular.ttf

630 ms

Poppins-Medium.ttf

Poppins-Medium.ttf

681 ms

i-adv-bg.jpg

i-adv-bg.jpg

590 ms

i-adv-icon1.png

i-adv-icon1.png

602 ms

i-adv-icon2.png

i-adv-icon2.png

711 ms

i-adv-icon3.png

i-adv-icon3.png

721 ms

init-2-bg.jpg

init-2-bg.jpg

742 ms

init-2-yuan.png

init-2-yuan.png

735 ms

init-3-bg.jpg

init-3-bg.jpg

802 ms

init-4-bg.jpg

init-4-bg.jpg

854 ms

footer-bg.jpg

footer-bg.jpg

814 ms

Roboto-Medium.ttf

Roboto-Medium.ttf

770 ms

roboto-bold.ttf

roboto-bold.ttf

839 ms

Raleway-Bold.ttf

Raleway-Bold.ttf

852 ms

z_stat.php

z_stat.php

20277 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

887 ms

DINPRO-REGULAR.woff

DINPRO-REGULAR.woff

439 ms

banner-btn-l.png

banner-btn-l.png

585 ms

banner-btn-r.png

banner-btn-r.png

252 ms

pev.png

pev.png

237 ms

next.png

next.png

235 ms

Accessibility Review

tz-mask.com accessibility score

70

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

tz-mask.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

SEO Factors

tz-mask.com SEO score

73

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tz-mask.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Tz-mask.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

tz-mask.com

Open Graph description is not detected on the main page of Tz Mask. 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: