Tools & Wizards About Us

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

telzel.com

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Page Load Speed

6.6 sec in total

First Response

884 ms

Resources Loaded

5.3 sec

Page Rendered

416 ms

About Website

Click here to check amazing Telzel content for Thailand. Otherwise, check out these important facts you probably never knew about telzel.com

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Visit telzel.com

Key Findings

We analyzed Telzel.com page load time and found that the first response time was 884 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

telzel.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

50/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

telzel.com

884 ms

www.telzel.com

1469 ms

style.css

295 ms

sub021_01e.png

594 ms

sub021_02.png

778 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 95% of them (42 requests) were addressed to the original Telzel.com, 2% (1 request) were made to Secure.statcounter.com and 2% (1 request) were made to C.statcounter.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Telzel.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.8 kB (17%)

Content Size

419.1 kB

After Optimization

349.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Telzel.com main page is 419.1 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. 25% of websites need less resources to load. Images take 385.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 25.5 kB

  • Original 31.9 kB
  • After minification 29.9 kB
  • After compression 6.4 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. 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 25.5 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 44.2 kB

  • Original 385.3 kB
  • After minification 341.1 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. Obviously, Telzel needs image optimization as it can save up to 44.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 1.7 kB
  • After minification 1.7 kB
  • After compression 1.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-27%

Potential reduce by 71 B

  • Original 266 B
  • After minification 266 B
  • After compression 195 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. Telzel.com needs all CSS files to be minified and compressed as it can save up to 71 B or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (14%)

Requests Now

42

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Telzel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

telzel.com accessibility score

55

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.

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

telzel.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

telzel.com SEO score

67

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    TH

  • Encoding

    WINDOWS-874

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Telzel.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 Thai language. Our system also found out that Telzel.com main page’s claimed encoding is windows-874. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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