Tools & Wizards About Us
sum.vn screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    31% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

sum.vn

Rút gọn link miễn phí - Web làm ngắn & Quản lý liên kết số 1 VN - Sum.vn

Page Load Speed

10.3 sec in total

First Response

724 ms

Resources Loaded

8.5 sec

Page Rendered

1 sec

sum.vn screenshot

About Website

Welcome to sum.vn homepage info - get ready to check Sum best content for Vietnam right away, or after learning these important things about sum.vn

Web rút gọn link Sum.vn là website làm ngắn link miễn phí tốt nhất hiện nay. Giúp bạn rút gọn nhiều liên kết, thống kê, gắn mã facebook pixel, chống spam...

Visit sum.vn

Key Findings

We analyzed Sum.vn page load time and found that the first response time was 724 ms and then it took 9.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sum.vn performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value7,300 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.159

73/100

15%

TTI (Time to Interactive)

Value22.7 s

1/100

10%

Network Requests Diagram

sum.vn

724 ms

sum.vn

1263 ms

all.min.css

84 ms

select2.min.css

236 ms

cookieconsent.min.css

453 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 59% of them (79 requests) were addressed to the original Sum.vn, 7% (10 requests) were made to Tpc.googlesyndication.com and 7% (9 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Sum.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (66%)

Content Size

1.6 MB

After Optimization

531.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sum.vn main page is 1.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 50.9 kB

  • Original 63.3 kB
  • After minification 51.5 kB
  • After compression 12.4 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. This page needs HTML code to be minified as it can gain 11.9 kB, which is 19% 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 50.9 kB or 80% of the original size.

Image Optimization

-67%

Potential reduce by 681.9 kB

  • Original 1.0 MB
  • After minification 335.0 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, Sum needs image optimization as it can save up to 681.9 kB or 67% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 278.3 kB

  • Original 372.7 kB
  • After minification 372.5 kB
  • After compression 94.3 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 278.3 kB or 75% of the original size.

CSS Optimization

-10%

Potential reduce by 10.2 kB

  • Original 99.6 kB
  • After minification 99.6 kB
  • After compression 89.4 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. Sum.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 69 (56%)

Requests Now

123

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sum.vn

sum.vn

724 ms

sum.vn

sum.vn

1263 ms

all.min.css

all.min.css

84 ms

select2.min.css

select2.min.css

236 ms

cookieconsent.min.css

cookieconsent.min.css

453 ms

bootstrap.min.css

bootstrap.min.css

682 ms

font-awesome.min.css

font-awesome.min.css

909 ms

animate.css

animate.css

1135 ms

iconfont.css

iconfont.css

1157 ms

magnific-popup.css

magnific-popup.css

1159 ms

owl.carousel.min.css

owl.carousel.min.css

1179 ms

owl.theme.default.min.css

owl.theme.default.min.css

1200 ms

jquery-ui.structure.min.css

jquery-ui.structure.min.css

1203 ms

jquery-ui.theme.min.css

jquery-ui.theme.min.css

1358 ms

plugins.css

plugins.css

1380 ms

style.css

style.css

1610 ms

responsive.css

responsive.css

1401 ms

style-yellow.css

style-yellow.css

1429 ms

main.css

main.css

1668 ms

adsbygoogle.js

adsbygoogle.js

127 ms

amp-ad-0.1.js

amp-ad-0.1.js

104 ms

OneSignalSDK.js

OneSignalSDK.js

91 ms

api.js

api.js

128 ms

adsbygoogle.js

adsbygoogle.js

204 ms

bundle.pack.js

bundle.pack.js

2127 ms

custom.js

custom.js

1643 ms

cookieconsent.min.js

cookieconsent.min.js

1644 ms

plugins.js

plugins.js

1660 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

2152 ms

owl.carousel.min.js

owl.carousel.min.js

2165 ms

jquery.parallax-scroll.js

jquery.parallax-scroll.js

2170 ms

jquery.ajaxchimp.min.js

jquery.ajaxchimp.min.js

2172 ms

jquery.parallax.js

jquery.parallax.js

2186 ms

hostslide.js

hostslide.js

2192 ms

down.js

down.js

2195 ms

main.js

main.js

2201 ms

typed.min.js

typed.min.js

70 ms

clipboard.min.js

clipboard.min.js

2204 ms

app.min.js

app.min.js

2421 ms

server.min.js

server.min.js

2422 ms

js

js

191 ms

show_ads_impl.js

show_ads_impl.js

73 ms

zrt_lookup.html

zrt_lookup.html

39 ms

auto_site_logo.png

auto_site_logo.png

557 ms

banner_image.png

banner_image.png

1664 ms

atp.png

atp.png

584 ms

hung-1.png

hung-1.png

584 ms

hung.png

hung.png

583 ms

banner_icon_4.png

banner_icon_4.png

584 ms

included-feature-6.png

included-feature-6.png

634 ms

included-feature-3.png

included-feature-3.png

988 ms

included-feature-4.png

included-feature-4.png

990 ms

included-feature-5.png

included-feature-5.png

997 ms

choose-us-1.png

choose-us-1.png

964 ms

choose-us-2.png

choose-us-2.png

1000 ms

choose-us-3.png

choose-us-3.png

1517 ms

info-img-1.png

info-img-1.png

1680 ms

icon-1.png

icon-1.png

1483 ms

youtube-1.png

youtube-1.png

1473 ms

facebook-1.png

facebook-1.png

1474 ms

atp-1.png

atp-1.png

1503 ms

electric-wave.png

electric-wave.png

1505 ms

touch.svg

touch.svg

1499 ms

lock.svg

lock.svg

1631 ms

chart.svg

chart.svg

1638 ms

support.svg

support.svg

1667 ms

setting.svg

setting.svg

1447 ms

info-img-2.png

info-img-2.png

1830 ms

ghichu.vn.png

ghichu.vn.png

2430 ms

atpweb.vn.png

atpweb.vn.png

1832 ms

finduid.com.png

finduid.com.png

1781 ms

006-united-states.svg

006-united-states.svg

1767 ms

002-canada.svg

002-canada.svg

1764 ms

003-vietnam.svg

003-vietnam.svg

1808 ms

location.png

location.png

1888 ms

mail.png

mail.png

1886 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2390 ms

cookie.js

cookie.js

214 ms

integrator.js

integrator.js

375 ms

ads

ads

614 ms

phone.png

phone.png

2172 ms

address-pin.png

address-pin.png

2171 ms

phone-pin.png

phone-pin.png

2137 ms

email-icon.png

email-icon.png

2125 ms

security-company-images-1.png

security-company-images-1.png

2748 ms

security-company-images-2.png

security-company-images-2.png

2746 ms

security-company-images-3.png

security-company-images-3.png

2746 ms

recaptcha__vi.js

recaptcha__vi.js

413 ms

security-company-images-4.png

security-company-images-4.png

2517 ms

round.png

round.png

2339 ms

cross-out.png

cross-out.png

2339 ms

ads

ads

558 ms

downsize_200k_v1

downsize_200k_v1

1027 ms

load_preloaded_resource.js

load_preloaded_resource.js

1015 ms

abg_lite.js

abg_lite.js

1013 ms

window_focus.js

window_focus.js

1039 ms

qs_click_protection.js

qs_click_protection.js

1009 ms

rx_lidar.js

rx_lidar.js

1183 ms

6c7423e08ae99c3d125c127fa3b3e325.js

6c7423e08ae99c3d125c127fa3b3e325.js

1005 ms

icon.png

icon.png

1009 ms

reactive_library.js

reactive_library.js

977 ms

iconfont.ttf

iconfont.ttf

1921 ms

footer-bg.png

footer-bg.png

1252 ms

s

s

118 ms

cookie_push_onload.html

cookie_push_onload.html

195 ms

dpixel

dpixel

345 ms

googleredir

googleredir

273 ms

css

css

418 ms

integrator.js

integrator.js

307 ms

zrt_lookup.html

zrt_lookup.html

303 ms

6592766407814317453

6592766407814317453

239 ms

css2

css2

197 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

59 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

56 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

106 ms

downsize_200k_v1

downsize_200k_v1

54 ms

icon.png

icon.png

52 ms

downsize_200k_v1

downsize_200k_v1

54 ms

pixel

pixel

90 ms

css

css

61 ms

pixel

pixel

128 ms

pixel

pixel

118 ms

pixel

pixel

117 ms

activeview

activeview

94 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy_AFyo4d4k.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy_AFyo4d4k.woff

90 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy_AFyo4d4k.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy_AFyo4d4k.woff

101 ms

pixel

pixel

78 ms

activeview

activeview

67 ms

YrdBSjzfIHcYhYLmavhSyO_EhBrLUWpx5ykdL7H9Kqg.js

YrdBSjzfIHcYhYLmavhSyO_EhBrLUWpx5ykdL7H9Kqg.js

55 ms

KFOlCnqEu92Fr1MmWUlvAB0_IsE.woff

KFOlCnqEu92Fr1MmWUlvAB0_IsE.woff

56 ms

KFOmCnqEu92Fr1Me5mZNCzc.woff

KFOmCnqEu92Fr1Me5mZNCzc.woff

56 ms

KFOlCnqEu92Fr1MmWUlfBBc-AMP6lQ.woff

KFOlCnqEu92Fr1MmWUlfBBc-AMP6lQ.woff

54 ms

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

52 ms

KFOlCnqEu92Fr1MmSU5fBBc-AMP6lQ.woff

KFOlCnqEu92Fr1MmSU5fBBc-AMP6lQ.woff

51 ms

sodar

sodar

29 ms

Accessibility Review

sum.vn accessibility score

84

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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>).

Best Practices

sum.vn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sum.vn SEO score

100

Search Engine Optimization Advices

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

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sum.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Sum.vn 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

sum.vn

Open Graph data is detected on the main page of Sum. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: