Tools & Wizards About Us
dichvudanhvanban.com screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

dichvudanhvanban.com

Tin Học Sao Việt - Gia Sư Dạy Kèm Tin Học Tại Nhà TPHCM - Hà Nội 4/2024

Page Load Speed

7.6 sec in total

First Response

1.7 sec

Resources Loaded

5.5 sec

Page Rendered

437 ms

dichvudanhvanban.com screenshot

About Website

Welcome to dichvudanhvanban.com homepage info - get ready to check Dichvudanhvanban best content for Vietnam right away, or after learning these important things about dichvudanhvanban.com

Gia Sư Dạy Kèm Tin Học Tại Nhà TP.HCM - Hà Nội. Dạy Kèm Thực Hành Vi Tính Văn Phòng Cho Người Đi Làm. Dịch Vụ Đánh Văn Bản, Đánh Máy Thuê, Chỉnh Sửa Báo Cáo, Luận Văn

Visit dichvudanhvanban.com

Key Findings

We analyzed Dichvudanhvanban.com page load time and found that the first response time was 1.7 sec and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dichvudanhvanban.com performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

76/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.527

14/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

dichvudanhvanban.com

1685 ms

dichvudanhvanban.com

1314 ms

bootstrap_use.min.css

250 ms

style_use.min.css

498 ms

DMCABadgeHelper.min.js

75 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 91% of them (40 requests) were addressed to the original Dichvudanhvanban.com, 5% (2 requests) were made to Images.dmca.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Dichvudanhvanban.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 172.6 kB (22%)

Content Size

781.2 kB

After Optimization

608.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dichvudanhvanban.com main page is 781.2 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. 45% of websites need less resources to load. Images take 644.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 71.3 kB

  • Original 83.2 kB
  • After minification 46.6 kB
  • After compression 11.9 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 36.6 kB, which is 44% 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 71.3 kB or 86% of the original size.

Image Optimization

-15%

Potential reduce by 98.3 kB

  • Original 644.8 kB
  • After minification 546.5 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, Dichvudanhvanban needs image optimization as it can save up to 98.3 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-5%

Potential reduce by 2.2 kB

  • Original 42.6 kB
  • After minification 42.5 kB
  • After compression 40.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-7%

Potential reduce by 755 B

  • Original 10.6 kB
  • After minification 10.6 kB
  • After compression 9.8 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. Dichvudanhvanban.com has all CSS files already compressed.

Requests Breakdown

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

Requests Now

42

After Optimization

36

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dichvudanhvanban. 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 as a result speed up the page load time.

Network Requests Diagram

dichvudanhvanban.com

dichvudanhvanban.com

1685 ms

dichvudanhvanban.com

dichvudanhvanban.com

1314 ms

bootstrap_use.min.css

bootstrap_use.min.css

250 ms

style_use.min.css

style_use.min.css

498 ms

DMCABadgeHelper.min.js

DMCABadgeHelper.min.js

75 ms

jquery.min.js

jquery.min.js

964 ms

jquery-waypoints.js

jquery-waypoints.js

730 ms

main.js

main.js

730 ms

js

js

56 ms

lazyload.min.js

lazyload.min.js

733 ms

gtm.js

gtm.js

65 ms

_dmca_premi_badge_4.png

_dmca_premi_badge_4.png

36 ms

icons8-mobile-home-30.png

icons8-mobile-home-30.png

250 ms

icons8-zoom-in-54.png

icons8-zoom-in-54.png

501 ms

phone-call-red.gif

phone-call-red.gif

451 ms

chat-fill-red.svg

chat-fill-red.svg

451 ms

gia-su-day-kem-tin-hoc-tphcm.jpg

gia-su-day-kem-tin-hoc-tphcm.jpg

495 ms

logo.png

logo.png

247 ms

hoc-vi-tinh-van-phong-tp-hcm-tp-hcm.jpg

hoc-vi-tinh-van-phong-tp-hcm-tp-hcm.jpg

487 ms

day-tin-hoc-van-phong-tp-hcm.jpg

day-tin-hoc-van-phong-tp-hcm.jpg

482 ms

1622433948_hoc-autocad-binh-duong_big.jpg

1622433948_hoc-autocad-binh-duong_big.jpg

732 ms

1621151483_tu-hoc-excel-cach-tao-file-excel-quan-ly-ban-hang-va-quan-ly-kho-hieu-qua-khong-vba-phan-2_large.jpg

1621151483_tu-hoc-excel-cach-tao-file-excel-quan-ly-ban-hang-va-quan-ly-kho-hieu-qua-khong-vba-phan-2_large.jpg

536 ms

1600139589_gioi-thieu-ve-pivot-table-trong-excel_large.jpg

1600139589_gioi-thieu-ve-pivot-table-trong-excel_large.jpg

491 ms

1656398360_MAVACHBIA_medium.png

1656398360_MAVACHBIA_medium.png

725 ms

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1654786075_ANHBIAQR_medium.png

733 ms

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1652340314_anhbialoaiboso_medium.png

737 ms

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1651936307_ANHBIACHUYENFILE%20-%20Copy_medium.png

745 ms

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1650700991_ANHBIAVOMMENT_medium.png

783 ms

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1650702199_ANHBIADEM_medium.png

966 ms

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1649440958_AB_medium.png

975 ms

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1664329743_DOIMATKHAUPDFBIA_biglarge.png

1220 ms

1652340296_anhbiachuyenhinhanh_small.png

1652340296_anhbiachuyenhinhanh_small.png

982 ms

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1647887787_anhbia_small.png

994 ms

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1030 ms

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1637566324_anhbia_small.png

1207 ms

1626924333_tu-hoc-excel-3-cach-chuyen-van-ban-in-hoa-sang-in-thuong-va-nguoc-lai-nhanh-nhat_small.jpg

1626924333_tu-hoc-excel-3-cach-chuyen-van-ban-in-hoa-sang-in-thuong-va-nguoc-lai-nhanh-nhat_small.jpg

1219 ms

1616765923_H%C6%B0%E1%BB%9Bng%20d%E1%BA%ABn%20s%E1%BB%AD%20d%E1%BB%A5ng%20Tab%20trong%20Word,jpg_small.jpg

1616765923_H%C6%B0%E1%BB%9Bng%20d%E1%BA%ABn%20s%E1%BB%AD%20d%E1%BB%A5ng%20Tab%20trong%20Word,jpg_small.jpg

1226 ms

day-kem-tin-hoc-tphcm.jpg

day-kem-tin-hoc-tphcm.jpg

1242 ms

trung-tam-gia-su-day-kem.jpg

trung-tam-gia-su-day-kem.jpg

1278 ms

1530875470_bia-bao-cao-tot-nghiep-2_small.png

1530875470_bia-bao-cao-tot-nghiep-2_small.png

1448 ms

1530875240_can-le-van-ban-font-chu-chuan-dep-trong-microsoft-word-1_small.png

1530875240_can-le-van-ban-font-chu-chuan-dep-trong-microsoft-word-1_small.png

1461 ms

1530874673_copy-tu-excel-sang-word-giu-nguyen-dinh-dang_small.jpg

1530874673_copy-tu-excel-sang-word-giu-nguyen-dinh-dang_small.jpg

1463 ms

1530872458_huong-dan-tach-ho-va-ten-trong-excel_small.png

1530872458_huong-dan-tach-ho-va-ten-trong-excel_small.png

1469 ms

1530869524_doi-so-thanh-chu-trong-excel-su-dung-cong-cu-acchelper_small.png

1530869524_doi-so-thanh-chu-trong-excel-su-dung-cong-cu-acchelper_small.png

1488 ms

Accessibility Review

dichvudanhvanban.com accessibility score

64

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Best Practices

dichvudanhvanban.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

dichvudanhvanban.com SEO score

89

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dichvudanhvanban.com 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 Dichvudanhvanban.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

dichvudanhvanban.com

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