Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

bluezz.com.tw

統一發票對獎網

Page Load Speed

3.9 sec in total

First Response

732 ms

Resources Loaded

2.7 sec

Page Rendered

395 ms

bluezz.com.tw screenshot

About Website

Welcome to bluezz.com.tw homepage info - get ready to check Bluezz best content for Taiwan right away, or after learning these important things about bluezz.com.tw

Visit bluezz.com.tw

Key Findings

We analyzed Bluezz.com.tw page load time and found that the first response time was 732 ms and then it took 3.1 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

bluezz.com.tw performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value20,390 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.188

65/100

15%

TTI (Time to Interactive)

Value31.2 s

0/100

10%

Network Requests Diagram

bluezz.com.tw

732 ms

style.css

422 ms

home_100.png

651 ms

counter_img.php

1465 ms

ad.js

438 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Bluezz.com.tw, 28% (11 requests) were made to Img.bluezz.tw and 13% (5 requests) were made to Img.scupio.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Counter.bluezz.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.3 kB (6%)

Content Size

283.7 kB

After Optimization

267.4 kB

In fact, the total size of Bluezz.com.tw main page is 283.7 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. 30% of websites need less resources to load. Images take 209.8 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 10.8 kB

  • Original 17.9 kB
  • After minification 17.7 kB
  • After compression 7.1 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 10.8 kB or 60% of the original size.

Image Optimization

-2%

Potential reduce by 3.5 kB

  • Original 209.8 kB
  • After minification 206.3 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. Bluezz images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 645 B

  • Original 54.0 kB
  • After minification 54.0 kB
  • After compression 53.4 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

-71%

Potential reduce by 1.4 kB

  • Original 1.9 kB
  • After minification 1.7 kB
  • After compression 548 B

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. Bluezz.com.tw needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (31%)

Requests Now

36

After Optimization

25

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bluezz. 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.

Accessibility Review

bluezz.com.tw accessibility score

68

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

bluezz.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

SEO Factors

bluezz.com.tw SEO score

85

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

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bluezz.com.tw can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Bluezz.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

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