Tools & Wizards About Us
pec9.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

pec9.com

วีดีโอออนไลน์ ติวเตรียมสอบ ติวออนไลน์ เรียนออนไลน์ |เลข เคมี ฟิสิกส์ PEC9

Page Load Speed

15.5 sec in total

First Response

1.7 sec

Resources Loaded

13.2 sec

Page Rendered

640 ms

pec9.com screenshot

About Website

Visit pec9.com now to see the best up-to-date PEC9 content for Thailand and also check out these interesting facts you probably never knew about pec9.com

วีดีโอออนไลน์ ติวเตรียมสอบ ติวออนไลน์ เรียนออนไลน์ | อิสรภาพและประสิทธิภาพสูงสุด กระชับ จบง่าย เข้าใจเร็ว เหลือเวลาเล่นเกมส์ ได้มีความสุขอย่างวัยรุ่น

Visit pec9.com

Key Findings

We analyzed Pec9.com page load time and found that the first response time was 1.7 sec and then it took 13.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

pec9.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value18.5 s

0/100

10%

TBT (Total Blocking Time)

Value2,050 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value22.2 s

1/100

10%

Network Requests Diagram

1722 ms

bootstrap.min.css

538 ms

stylesheet.css

563 ms

main-template.css

553 ms

page_index.css

550 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that all of those requests were addressed to Pec9.com and no external sources were called. The less responsive or slowest element that took the longest time to load (9.1 sec) belongs to the original domain Pec9.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 244.3 kB (70%)

Content Size

349.9 kB

After Optimization

105.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pec9.com main page is 349.9 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 186.4 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 22.9 kB

  • Original 26.9 kB
  • After minification 17.2 kB
  • After compression 4.0 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 9.8 kB, which is 36% 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 22.9 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 490 B

  • Original 22.9 kB
  • After minification 22.4 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. PEC9 images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 126.2 kB

  • Original 186.4 kB
  • After minification 186.1 kB
  • After compression 60.2 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 126.2 kB or 68% of the original size.

CSS Optimization

-83%

Potential reduce by 94.7 kB

  • Original 113.7 kB
  • After minification 112.7 kB
  • After compression 19.0 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. Pec9.com needs all CSS files to be minified and compressed as it can save up to 94.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (53%)

Requests Now

17

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PEC9. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

1722 ms

bootstrap.min.css

bootstrap.min.css

538 ms

stylesheet.css

stylesheet.css

563 ms

main-template.css

main-template.css

553 ms

page_index.css

page_index.css

550 ms

jquery.min.js

jquery.min.js

858 ms

bootstrap.min.js

bootstrap.min.js

629 ms

buzz.min.js

buzz.min.js

801 ms

bootbox.min.js

bootbox.min.js

803 ms

jquery.validate.min.js

jquery.validate.min.js

804 ms

additional-methods.min.js

additional-methods.min.js

804 ms

messages_th.min.js

messages_th.min.js

810 ms

useronline

useronline

1931 ms

site-logo-org.png

site-logo-org.png

2404 ms

register-animation.gif

register-animation.gif

1544 ms

fb-24.png

fb-24.png

1545 ms

2.gif

2.gif

2752 ms

newquota_resize.jpg

newquota_resize.jpg

9130 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

2568 ms

EDPenSook.ttf

EDPenSook.ttf

4703 ms

Accessibility Review

pec9.com accessibility score

97

Accessibility Issues

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

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

Best Practices

pec9.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pec9.com SEO score

85

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    TH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pec9.com can be misinterpreted by Google and other search engines. Our service has detected that Thai is used on the page, and it does not match the claimed English language. Our system also found out that Pec9.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

pec9.com

Open Graph description is not detected on the main page of PEC9. 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: