8.3 sec in total
21 ms
7.7 sec
551 ms
Click here to check amazing Download content for Vietnam. Otherwise, check out these important facts you probably never knew about download.vn
Download.vn cung cấp các bài hướng dẫn, thủ thuật,tài liệu và học tập, top ứng dụng và các thông tin về ứng dụng cho Windows, Mac, Android, iPhone
Visit download.vnWe analyzed Download.vn page load time and found that the first response time was 21 ms and then it took 8.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
download.vn performance score
name
value
score
weighting
Value1.3 s
98/100
10%
Value2.4 s
92/100
25%
Value10.1 s
9/100
10%
Value5,790 ms
0/100
30%
Value0.075
95/100
15%
Value26.1 s
0/100
10%
21 ms
1818 ms
176 ms
60 ms
39 ms
Our browser made a total of 205 requests to load all elements on the main page. We found that 9% of them (19 requests) were addressed to the original Download.vn, 63% (129 requests) were made to O.rada.vn and 10% (20 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source O.rada.vn.
Page size can be reduced by 340.9 kB (22%)
1.6 MB
1.2 MB
In fact, the total size of Download.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. 70% of websites need less resources to load. Javascripts take 747.0 kB which makes up the majority of the site volume.
Potential reduce by 252.2 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 252.2 kB or 83% of the original size.
Potential reduce by 31.8 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. Download images are well optimized though.
Potential reduce by 56.9 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.
Number of requests can be reduced by 87 (46%)
190
103
The browser has sent 190 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Download. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and as a result speed up the page load time.
download.vn
21 ms
download.vn
1818 ms
player.js
176 ms
gtm.js
60 ms
holder.png
39 ms
DownloadVN-Logo.svg
20 ms
find.png
31 ms
notifications.svg
22 ms
home-32.png
23 ms
idea.svg
47 ms
doc-file.svg
73 ms
computer.svg
76 ms
registration-form.svg
73 ms
toan-7.svg
75 ms
edu-mouse.png
78 ms
Language.png
75 ms
Word-700-size-700x367-znd.jpg
835 ms
Toan-1-700-size-338x177-znd.jpg
79 ms
De-thi-Van-8-CTST-size-338x177-znd.jpg
88 ms
noimage.png
905 ms
bar-chart.svg
23 ms
default.gif
85 ms
cmt-16.svg
29 ms
On-he-KNTT4-size-338x177-znd.jpg
30 ms
On-he-lop-1-700-size-338x177-znd.jpg
29 ms
Loi-chuc-1-6-700-size-338x177-znd.jpg
29 ms
13763637569297853831494-size-56x56-znd.jpg
29 ms
code-tieu-ngao-gamota-700-size-338x177-znd.jpg
29 ms
Word-700-size-338x177-znd.jpg
78 ms
hinh-ve-chibi-hinh-anh1-size-56x56-znd.png
66 ms
loi-bai-hat-ve-lai-buc-tranh-700-size-338x177-znd.jpg
65 ms
email-decode.min.js
15 ms
DMCABadgeHelper.min.js
101 ms
main.bundle.min.js
34 ms
adsbygoogle.js
172 ms
get.aspx
287 ms
dmcabadgehelper.min.js
79 ms
icon-comment.png
27 ms
user-16.svg
25 ms
clock.svg
59 ms
idea-size-24x24-znd.svg
607 ms
doc-file-size-24x24-znd.svg
39 ms
computer-size-24x24-znd.svg
37 ms
Dai-hoi-cong-doan-700-size-348x182-znd.jpg
826 ms
Cuoi-nam-size-80x80-znd.png
21 ms
thiep-mung-ngay-quoc-te-thieu-nhi-200-size-80x80-znd.jpg
41 ms
phieu-danh-gia-phan-loai-vien-chuc-size-80x80-znd.png
41 ms
Viet-Bac-700-size-348x182-znd.jpg
41 ms
van-de-doi-song-tu-cuon-sach-size-80x80-znd.png
42 ms
phan-tich-bai-tho-bep-lua-size-80x80-znd.png
44 ms
Nghi-luan-xa-hoi-size-80x80-znd.png
44 ms
Dai-hoi-cong-doan-200-size-80x80-znd.jpg
543 ms
Ngay-Mai-Nguoi-Ta-di-Lay-Chong-200-size-80x80-znd.jpg
110 ms
code-thien-nhai-minh-nguyet-dao-vng-200-size-80x80-znd.jpg
110 ms
roblox-music-id-200-size-80x80-znd.jpg
110 ms
Hop-phu-huynh-200-size-80x80-znd.png
112 ms
Mam-non-size-80x80-znd.png
112 ms
Gia-tri-ban-than-size-80x80-znd.png
113 ms
Chiec-luoc-nga-200-size-80x80-znd.jpg
114 ms
Viet-doan-van-ke-ve-tro-choi-cuop-co-size-80x80-znd.png
114 ms
Am-nhac-8-kntt-size-80x80-znd.png
597 ms
On-thi-GDCD-size-80x80-znd.png
646 ms
Chim-bo-cau-200-size-80x80-znd.jpg
1162 ms
Huy-hieu-dang-size-80x80-znd.png
1161 ms
Huy-hieu-Dang-200-size-80x80-znd.jpg
1163 ms
van-2-size-80x80-znd.svg
1197 ms
Mi-thuat-8-kntt-size-80x80-znd.png
1254 ms
Trac-nghiem-gdcd-size-80x80-znd.png
1353 ms
Chuyen-de-size-80x80-znd.png
1640 ms
Duoi-nuoc-200-size-80x80-znd.png
1628 ms
js
36 ms
lyulytthnd
99 ms
mainnavigation
283 ms
popularlists
1692 ms
navigation
1163 ms
clarity.js
54 ms
show_ads_impl.js
245 ms
word-size-24x24-znd.svg
849 ms
top-size-24x24-znd.svg
1343 ms
excel-size-24x24-znd.svg
1402 ms
wifi-signal-size-24x24-znd.svg
940 ms
photo-size-24x24-znd.svg
964 ms
level-up-size-24x24-znd.svg
966 ms
Emulator-size-24x24-znd.png
1481 ms
file-size-24x24-znd.svg
1038 ms
mobile-phone-size-24x24-znd.svg
1312 ms
game-size-24x24-znd.png
1851 ms
song-lyrics-size-24x24-znd.svg
1316 ms
speedometer-size-24x24-znd.png
1846 ms
like-f-size-24x24-znd.svg
1327 ms
social-media-size-24x24-znd.svg
1328 ms
chat-sms-size-24x24-znd.svg
1343 ms
Learn-size-24x24-znd.png
1868 ms
system-update-size-24x24-znd.svg
1351 ms
security-shield-size-24x24-znd.png
1885 ms
Design-size-24x24-znd.png
1944 ms
insurance-size-24x24-znd.svg
1491 ms
ViewFile-size-24x24-znd.png
2030 ms
film-size-24x24-znd.png
2387 ms
zrt_lookup.html
28 ms
ads
340 ms
ads
357 ms
ads
383 ms
ads
480 ms
ads
372 ms
ads
642 ms
photoswipe.default-skin.png
885 ms
astrology-size-24x24-znd.png
2195 ms
bank-building-size-24x24-znd.png
2183 ms
signal-64-size-24x24-znd.png
1865 ms
news-size-24x24-znd.png
1670 ms
airport-64-size-24x24-znd.png
1644 ms
life-insurance-size-24x24-znd.svg
1479 ms
12d95d4c7f28e5d768e0b461a4598061.js
24 ms
load_preloaded_resource.js
39 ms
5cad5a605d634f684c7cf1ecfca85228.js
40 ms
abg_lite.js
53 ms
window_focus.js
57 ms
qs_click_protection.js
59 ms
ufs_web_display.js
18 ms
c653839755d9d9a3a773c62a0253f53f.js
51 ms
s
8 ms
css
122 ms
blank.png
1153 ms
registration-form-size-24x24-znd.svg
1167 ms
form-edit-size-24x24-znd.png
1722 ms
reactive_library.js
185 ms
ca-pub-9275417305531302
115 ms
law-size-24x24-znd.svg
1164 ms
PowerPoint-Quiz-2-size-24x24-znd.jpg
1612 ms
comic-book-size-24x24-znd.png
1741 ms
notepad-size-24x24-znd.png
1995 ms
font-size-24x24-znd.svg
1447 ms
4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff
37 ms
4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff
38 ms
Technology-size-24x24-znd.png
1989 ms
activeview
150 ms
d4Vwwu8iHiCDxZ1xzxUGRbEaLZqCebWmAfX3l2eV90k.js
51 ms
zentao-size-24x24-znd.jpg
1919 ms
ads
235 ms
ads
230 ms
ads
368 ms
ads
254 ms
fireworks-size-24x24-znd.png
2012 ms
12825314946989653544
73 ms
feedback_grey600_24dp.png
10 ms
fullscreen_api_adapter.js
25 ms
interstitial_ad_frame.js
30 ms
settings_grey600_24dp.png
31 ms
12301717343934503400
15 ms
spa-flower-size-24x24-znd.png
1769 ms
ebook-size-24x24-znd.png
1912 ms
css
18 ms
van-5-size-24x24-znd.svg
2201 ms
palette-size-24x24-znd.png
2186 ms
toan-7-size-24x24-znd.svg
1640 ms
edu-mouse-size-24x24-znd.png
2184 ms
Language-size-24x24-znd.png
1752 ms
ea8FacM9Wef3EJPWRrHjgE4B6CnlZxHVDv79pw.woff
4 ms
ea8IacM9Wef3EJPWRrHjgE4B6CnlZxHVBg3etBD7Sg.woff
9 ms
tieu-hoc-size-24x24-znd.png
1763 ms
blackboard-size-24x24-znd.png
2265 ms
calculator-size-24x24-znd.png
2257 ms
blackboard-3-size-24x24-znd.png
2282 ms
architecture-size-24x24-znd.png
2588 ms
ads
3 ms
ads
4 ms
ads
3 ms
ads
2 ms
toan-4-size-24x24-znd.svg
1678 ms
reading-size-24x24-znd.png
2204 ms
square-root-size-24x24-znd.png
2165 ms
chemistry-size-24x24-znd.png
2242 ms
books-size-24x24-znd.png
2253 ms
van-2-size-24x24-znd.svg
1814 ms
toan-5-size-24x24-znd.svg
2356 ms
evaluation-size-24x24-znd.png
2582 ms
mortarboard-size-24x24-znd.png
2576 ms
ptth-size-24x24-znd.png
2617 ms
learning-size-24x24-znd.png
2670 ms
cao-dang-dai-hoc-size-24x24-znd.png
2703 ms
cao-hoc-size-24x24-znd.png
2744 ms
ComputerOnline-size-24x24-znd.png
2194 ms
ebook-size-24x24-znd.svg
2190 ms
japan-80-size-24x24-znd.png
2700 ms
goIOE-size-24x24-znd.png
2716 ms
Violympic-size-24x24-znd.png
2351 ms
de-thi-2-size-24x24-znd.png
2648 ms
ta-co-giao-size-80x80-znd.png
2074 ms
Nhan-xet-pham-chat-200-size-80x80-znd.jpg
1814 ms
chuyen-di-size-80x80-znd.png
1828 ms
Ta-con-vat-200-size-80x80-znd.png
1838 ms
doan-van-tieng-anh-size-80x80-znd.png
1836 ms
hien-tuong-nghien-internet-cua-gioi-tre-size-80x80-znd.png
1733 ms
viec-lam-tot-bao-ve-moi-truong-size-80x80-znd.png
1730 ms
Bai-tho-tieu-doi-xe-khong-kinh-200-size-80x80-znd.jpg
2005 ms
y-kien-tan-thanh-size-80x80-znd.png
1790 ms
Nhan-xet-hoc-sinh-200-size-80x80-znd.jpg
2208 ms
sodar
74 ms
ads
3 ms
ads
3 ms
ads
2 ms
ads
2 ms
c.gif
7 ms
sodar2.js
12 ms
download.vn accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
download.vn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
download.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
VI
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Download.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Download.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.
download.vn
Open Graph description is not detected on the main page of Download. 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: