Analyze Cung cấp giáo viên nước ngoài uy tín, chuyên nghiệp - IES Education

IES cung cấp giáo viên nước ngoài | giáo viên bản ngữ | giáo viên bản xứ | giáo viên tiếng Anh chuyên nghiệp, đầy đủ bằng cấp và giấy phép lao động tại VN.

Page load speed analysis

  • 54/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    6.8 sec

  • Resources loaded

    13.7 sec

  • Page rendered

    659 ms

  • Total page load time

    21.1 sec

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We analyzed page load time and found that the first response time was 6.8 sec and then it took 14.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Page optimization

  • HTML 83.2 kB
    Images 4.2 MB
    Javascripts 983.6 kB
    CSS 731.1 kB

    In fact, the total size of main page is 6.0 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. 65% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

    • Original 83.2 kB
    • After minification 62.2 kB
    • After compression 12.9 kB

    HTML optimization

    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 20.9 kB, which is 25% 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 70.3 kB or 84% of the original size.

    • Original 4.2 MB
    • After optimization 3.9 MB

    Image optimization

    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. IES C images are well optimized though.

    • Original 983.6 kB
    • After minification 975.6 kB
    • After compression 245.7 kB

    JavaScript optimization

    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 737.9 kB or 75% of the original size.

    • Original 731.1 kB
    • After minification 561.8 kB
    • After compression 84.7 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 646.4 kB or 88% of the original size.

Network requests diagram

  • css
  • Common.css
  • bootstrap.css
  • color-default.css
  • retina.css
  • animate.css
  • owl.carousel.css
  • owl.theme.css
  • shortcodes.css
  • main.css
  • slider-pro.css
  • jgallery.min.css
  • masterslider.css
  • style.css
  • slick-theme.css
  • slick.css
  • ms-staff-style.css
  • font-awesome.css
  • colorbox.css
  • style.css
  • responsive.css
  • jquery-2.1.4.min.js
  • jqueryval
  • bootstrap.min.js
  • jquery.scripts.min.js
  • jquery.isotope.min.js
  • jquery.magnific-popup.min.js
  • jgallery.min.js
  • touchswipe.min.js
  • portfolio.js
  • jquery.sliderPro.min.js
  • wow.min.js
  • masterslider.min.js
  • jquery.easing.min.js
  • owl.carousel.min.js
  • jquery.dlmenu.min.js
  • include.js
  • jquery.colorbox-min.js
  • star-rating.min.css
  • logo.png
  • blank.gif
  • teacher.gif
  • time.gif
  • shake.gif
  • head-bg-2.png
  • trung-tam-ngoai-ngu-tri-anh.jpg
  • U7Fc1sy5SCUDIu4tlJY3_NY_by_PhilippHenzler_philmotion_de%20copy.jpg
  • Samuel-lage.jpg
  • Oscar-Javier-lage.jpg
  • iryna-lage.jpg
  • Michael-lage(1).jpg
  • robert-lage.jpg
  • Mark-lage.jpg
  • shaw-lage.jpg
  • toni-lage.jpg
  • Daniel-lage.jpg
  • Patrick-lage.jpg
  • Oscar-lage.jpg
  • Scott-lage.jpg
  • MICHAEL-lage.jpg
  • Ray-lage.jpg
  • antony-lage.jpg
  • Andrew-lage.jpg
  • Jamie-lage.jpg
  • Eric-lage.jpg
  • Benjamin-lage.jpg
  • Elvis-Jardinel-Lumame_lage.jpg
  • Ruth-Hanvey-lage.jpg
  • Muhammad-lage.jpg
  • kh-van-tuan.jpg
  • kh-hong-dao.jpg
  • kh-hanh-nguyen.jpg
  • logo-dtp.jpg
  • rise-logo.jpg
  • e-study-logo.jpg
  • analytics.js
  • default
  • Adam%20Khoo.jpg
  • cJZKeOuBrn4kERxqtaUH3SZ2oysoEQEeKwjgmXLRnTc.ttf
  • k3k702ZOKiLJc3WVjuplzJS3E-kSBmtLoNJPDtbj2Pk.ttf
  • fontawesome-webfont.woff
  • xjAJXh38I15wypJXxuGMBiwlidHJgAgmTjOEEzwu1L8.ttf
  • sdk.js
  • collect
  • mam-non-sao-viet-logo.jpg
  • xd_arbiter.php
  • xd_arbiter.php
  • logo%20Pathway.png
  • icons.png
  • 1458436948735
  • 8.png
  • logo%20Vpbox.png
  • hoahuongduong.jpg
  • ajax-loader-3.gif
  • vo-truong-toan-logo.jpg
  • v3
  • viettinbank.jpg
  • wonderbee.jpg
  • cong-vang-logo.jpg
  • logo-marketing.jpg
  • logo-abi.jpg
  • aroma.png
  • bkg-img11.jpg
  • footer-world-map.png
  • to-top.png
  • loading-2.gif
  • overlay.png
  • slide-next.png
  • slide-prev.png
  • Banner-ies-2.png
  • slide-bullet.png
  • muiten2.png
  • muiten1.png
  • Samuel-thum.jpg
  • Oscar-Javier-thum.jpg

Our browser made a total of 120 requests to load all elements on the main page. We found that 84% of them (101 requests) were addressed to the original, 3% (3 requests) were made to and 3% (3 requests) were made to The less responsive or slowest element that took the longest time to load (6.8 sec) belongs to the original domain

Additional info on


The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IES C. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 360
NS 360
NS 360
NS 360

3600 Mname:
Serial: 2020041624
Refresh: 14400
Retry: 3600
Expire: 1209600
Minimum-ttl: 86400

Language and encoding

Normal result


VI vi language flag


EN en language flag





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

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 100% of all visits is Vietnam. It’s good for that their server is also located in Vietnam, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

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

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