Tools & Wizards About Us
ziv.com.tw screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 66

    SEO

    Google-friendlier than
    26% of websites

ziv.com.tw

運動太陽眼鏡推薦 ZIV 專為亞洲人設計的眼鏡

Page Load Speed

7.2 sec in total

First Response

588 ms

Resources Loaded

6.3 sec

Page Rendered

234 ms

ziv.com.tw screenshot

About Website

Click here to check amazing ZIV content for Taiwan. Otherwise, check out these important facts you probably never knew about ziv.com.tw

ZIV是100%台灣設計製造的運動太陽眼鏡品牌，通過國際認証。產品多元，還包括流行太陽眼鏡，客製化太陽眼鏡，雪鏡，運動護目鏡等等。抗UV400、防霧、變色、高清晰偏光片，專利可調整鼻墊與腳墊

Visit ziv.com.tw

Key Findings

We analyzed Ziv.com.tw page load time and found that the first response time was 588 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

ziv.com.tw performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.1 s

0/100

25%

SI (Speed Index)

Value17.8 s

0/100

10%

TBT (Total Blocking Time)

Value290 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.213

58/100

15%

TTI (Time to Interactive)

Value20.6 s

2/100

10%

Network Requests Diagram

ziv.com.tw

588 ms

www.ziv.com.tw

1330 ms

ziv.css

606 ms

jquery-3.5.1.min.js

1019 ms

jquery-migrate-1.4.1.min.js

611 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 86% of them (86 requests) were addressed to the original Ziv.com.tw, 5% (5 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Ziv.com.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 929.7 kB (47%)

Content Size

2.0 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ziv.com.tw main page is 2.0 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. 55% of websites need less resources to load. Images take 793.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 48.9 kB

  • Original 60.3 kB
  • After minification 48.2 kB
  • After compression 11.4 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. This page needs HTML code to be minified as it can gain 12.1 kB, which is 20% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 48.9 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 9.5 kB

  • Original 793.9 kB
  • After minification 784.4 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. ZIV images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 452.3 kB

  • Original 617.0 kB
  • After minification 565.4 kB
  • After compression 164.7 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 452.3 kB or 73% of the original size.

CSS Optimization

-85%

Potential reduce by 419.0 kB

  • Original 490.5 kB
  • After minification 444.3 kB
  • After compression 71.5 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. Ziv.com.tw needs all CSS files to be minified and compressed as it can save up to 419.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 71 (77%)

Requests Now

92

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZIV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ziv.com.tw

ziv.com.tw

588 ms

www.ziv.com.tw

www.ziv.com.tw

1330 ms

ziv.css

ziv.css

606 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

1019 ms

jquery-migrate-1.4.1.min.js

jquery-migrate-1.4.1.min.js

611 ms

device.min.js

device.min.js

616 ms

font-awesome.min.css

font-awesome.min.css

27 ms

bootstrap.min.css

bootstrap.min.css

1235 ms

index.css

index.css

811 ms

MegaNavbar.css

MegaNavbar.css

1033 ms

navbar-inverse.css

navbar-inverse.css

1035 ms

animation.css

animation.css

1006 ms

ziv-2023.css

ziv-2023.css

1014 ms

style.css

style.css

1214 ms

scroll_to_top_fix.js

scroll_to_top_fix.js

1216 ms

masterslider.css

masterslider.css

1222 ms

style.css

style.css

1225 ms

ms-fullscreen.css

ms-fullscreen.css

1226 ms

jquery.easing.min.js

jquery.easing.min.js

1426 ms

masterslider.min.js

masterslider.min.js

1830 ms

tableCss.css

tableCss.css

1427 ms

util.carousel.css

util.carousel.css

1428 ms

util.carousel.skins.css

util.carousel.skins.css

1432 ms

magnific-popup.css

magnific-popup.css

1437 ms

jquery.royalslider.min.js

jquery.royalslider.min.js

2050 ms

royalslider.css

royalslider.css

1628 ms

jquery-ui-1.8.22.custom.css

jquery-ui-1.8.22.custom.css

1633 ms

github.css

github.css

1637 ms

rs-default.css

rs-default.css

1640 ms

sky-tabs.css

sky-tabs.css

1832 ms

component.css

component.css

1839 ms

modernizr.custom.js

modernizr.custom.js

1846 ms

masonry.pkgd.min.js

masonry.pkgd.min.js

1849 ms

imagesloaded.js

imagesloaded.js

2031 ms

classie.js

classie.js

2037 ms

AnimOnScroll.js

AnimOnScroll.js

2044 ms

jquery-ui.css

jquery-ui.css

2053 ms

jquery-ui.js

jquery-ui.js

24 ms

jquery.blockUI.js

jquery.blockUI.js

2055 ms

style.css

style.css

1839 ms

jquery-ui.css

jquery-ui.css

1644 ms

colorbox.css

colorbox.css

1646 ms

jquery.fly.min.js

jquery.fly.min.js

1645 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

1452 ms

bootstrap.min.js

bootstrap.min.js

1269 ms

tm-scripts.js

tm-scripts.js

1429 ms

speed.css

speed.css

1422 ms

hinge.css

hinge.css

1430 ms

slide.css

slide.css

1440 ms

bling.css

bling.css

1253 ms

bounce.css

bounce.css

1269 ms

skew.css

skew.css

1435 ms

space.css

space.css

1441 ms

scale.css

scale.css

1442 ms

zoom.css

zoom.css

1443 ms

rotate.css

rotate.css

1259 ms

flip.css

flip.css

1274 ms

reset.css

reset.css

1436 ms

modernizr.custom.30587.js

modernizr.custom.30587.js

1446 ms

jquery.utilcarousel.min.js

jquery.utilcarousel.min.js

1452 ms

jquery.magnific-popup.js

jquery.magnific-popup.js

1261 ms

css

css

29 ms

cwtexhei.css

cwtexhei.css

21 ms

gtm.js

gtm.js

140 ms

titlebg.png

titlebg.png

213 ms

logo.png

logo.png

209 ms

blank.gif

blank.gif

214 ms

001.jpg

001.jpg

216 ms

002.jpg

002.jpg

213 ms

003.jpg

003.jpg

209 ms

bs-cat.png

bs-cat.png

616 ms

004.jpg

004.jpg

1836 ms

LOGO3.png

LOGO3.png

413 ms

icon1.png

icon1.png

418 ms

icon2.png

icon2.png

417 ms

icon3.png

icon3.png

448 ms

icon4.png

icon4.png

619 ms

jquery.cookie.js

jquery.cookie.js

571 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

572 ms

tmstickup.js

tmstickup.js

610 ms

jquery.ui.totop.js

jquery.ui.totop.js

767 ms

superfish.js

superfish.js

772 ms

jquery.rd-navbar.js

jquery.rd-navbar.js

793 ms

wow.js

wow.js

776 ms

jquery.form.min.js

jquery.form.min.js

817 ms

jquery.rd-mailform.min.js

jquery.rd-mailform.min.js

971 ms

sdk.js

sdk.js

15 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

18 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

24 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

57 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

72 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

94 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

95 ms

sdk.js

sdk.js

9 ms

78 ms

loading-2.gif

loading-2.gif

204 ms

light-skin-1.png

light-skin-1.png

209 ms

201509101137116292.jpg

201509101137116292.jpg

419 ms

buy_car_count2019.php

buy_car_count2019.php

220 ms

overlay.png

overlay.png

203 ms

Accessibility Review

ziv.com.tw accessibility score

73

Accessibility Issues

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

Document doesn't have a <title> element

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

ziv.com.tw best practices score

67

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ziv.com.tw SEO score

66

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

Document doesn't have a <title> element

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

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

ziv.com.tw

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