Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

Page Load Speed

4.1 sec in total

First Response

447 ms

Resources Loaded

3.5 sec

Page Rendered

137 ms

istars.co screenshot

About Website

Click here to check amazing Istars content for Taiwan. Otherwise, check out these important facts you probably never knew about istars.co

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Key Findings

We analyzed Istars.co page load time and found that the first response time was 447 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

istars.co performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.252

49/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

istars.co

447 ms

istars.co

987 ms

wp-emoji-release.min.js

449 ms

genericons.css

856 ms

style.css

1095 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original Istars.co, 8% (1 request) were made to Secure.gravatar.com and 8% (1 request) were made to . The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Istars.co.

Page Optimization Overview & Recommendations

Page size can be reduced by 177.4 kB (70%)

Content Size

253.8 kB

After Optimization

76.4 kB

In fact, the total size of Istars.co main page is 253.8 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. 15% of websites need less resources to load. Javascripts take 146.3 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 6.5 kB

  • Original 9.8 kB
  • After minification 9.2 kB
  • After compression 3.3 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 6.5 kB or 66% of the original size.

Image Optimization

-30%

Potential reduce by 337 B

  • Original 1.1 kB
  • After minification 787 B

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. Obviously, Istars needs image optimization as it can save up to 337 B or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 99.9 kB

  • Original 146.3 kB
  • After minification 143.6 kB
  • After compression 46.3 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 99.9 kB or 68% of the original size.

CSS Optimization

-73%

Potential reduce by 70.7 kB

  • Original 96.7 kB
  • After minification 81.4 kB
  • After compression 26.0 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. Istars.co needs all CSS files to be minified and compressed as it can save up to 70.7 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (50%)

Requests Now

10

After Optimization

5

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Istars. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

istars.co accessibility score

60

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

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

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

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

istars.co best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

istars.co SEO score

92

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

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Istars.co 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), while the claimed language is Chinese. Our system also found out that Istars.co 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 Istars. 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: