11.6 sec in total
986 ms
8.4 sec
2.3 sec
Click here to check amazing Vn Doc content for Vietnam. Otherwise, check out these important facts you probably never knew about vndoc.com
VnDoc chia sẻ các tài liệu học tập: Đề thi, trắc nghiệm, giải bài tập, bài tập cuối tuần,.... Mạng xã hội Giáo dục hàng đầu Việt Nam
Visit vndoc.comWe analyzed Vndoc.com page load time and found that the first response time was 986 ms and then it took 10.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
vndoc.com performance score
name
value
score
weighting
Value1.4 s
98/100
10%
Value10.2 s
0/100
25%
Value10.1 s
9/100
10%
Value7,320 ms
0/100
30%
Value0.246
50/100
15%
Value18.0 s
3/100
10%
986 ms
1064 ms
1544 ms
511 ms
1061 ms
Our browser made a total of 299 requests to load all elements on the main page. We found that 9% of them (28 requests) were addressed to the original Vndoc.com, 43% (128 requests) were made to I.vndoc.com and 35% (104 requests) were made to I.vietnamdoc.net. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source I.vietnamdoc.net.
Page size can be reduced by 829.0 kB (31%)
2.7 MB
1.9 MB
In fact, the total size of Vndoc.com main page is 2.7 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. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 249.1 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 110.0 kB, which is 40% 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 249.1 kB or 91% of the original size.
Potential reduce by 131.0 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. Vn Doc images are well optimized though.
Potential reduce by 356.4 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 356.4 kB or 59% of the original size.
Potential reduce by 92.4 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. Vndoc.com needs all CSS files to be minified and compressed as it can save up to 92.4 kB or 74% of the original size.
Number of requests can be reduced by 79 (27%)
296
217
The browser has sent 296 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vn Doc. 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 4 to 1 for CSS and as a result speed up the page load time.
vndoc.com
986 ms
theme.min.css
1064 ms
jquery-1.7.2.min.js
1544 ms
textlink.v3.css
511 ms
adengine.v5.js
1061 ms
jquery.validate.min.js
244 ms
jquery.validate.unobtrusive.min.js
290 ms
jquery.hoverIntent.minified.js
487 ms
jquery.dcmegamenu.1.3.3.min.js
545 ms
jquery.dcverticalmegamenu.1.3.js
560 ms
jquery.fancybox-1.3.4.pack.js
730 ms
jquery.cookie.min.js
797 ms
idangerous.swiper.min.js
1225 ms
jquery.ubaplayer.js
837 ms
tooltipsy.min.js
819 ms
jquery.sticky.min.js
996 ms
main.min.js
1050 ms
ouibounce.min.js
1226 ms
adfooter.min.js
1226 ms
brand
58 ms
element.js
37 ms
brand
63 ms
analytics.js
152 ms
edit.png
892 ms
Caodang-Daihoc.png
562 ms
Tieu-hoc.png
874 ms
Phothongtrunghoc.png
877 ms
Luyen-thi-dai-hoc.png
876 ms
Cao-hoc.png
899 ms
Learning-app.png
919 ms
Hoc-nghe.png
1132 ms
Mamnon.png
1129 ms
Tin-hoc-van-phong.png
1134 ms
van-hoa-co-truyen.jpg
1134 ms
Khoahoc-kythuat.png
1169 ms
Vanhoa-giaitri.png
1174 ms
Loi-bai-hat-Lyric.jpg
1380 ms
Du-lich.png
1377 ms
mon-ngon-moi-ngay.jpg
1389 ms
Truyen-ke-be-nghe.png
1388 ms
Le-tet-co-truyen.png
1435 ms
meo-vat-cuoc-song.png
1435 ms
UK1.png
1616 ms
Grammar.png
1623 ms
Pho-thong.png
1634 ms
Child-English.png
1633 ms
TOEFL.png
1690 ms
Dictionary.png
1692 ms
Video-English.png
1854 ms
TA-chuyen-nganh.png
1859 ms
edit-property.png
1878 ms
gia-dinh.png
1880 ms
tin-dung.png
1944 ms
to-cao.png
1976 ms
kiem-toan.png
2092 ms
tuyen-dung.png
2103 ms
doanh-nghiep.png
2122 ms
an-ninh.png
2123 ms
law.png
2216 ms
school.png
2233 ms
logo.png
291 ms
home-32.png
276 ms
star.png
295 ms
Trunghoccoso.png
550 ms
luyen-thi.png
552 ms
tin-hoc-van-phong.jpg
575 ms
language.png
572 ms
Test-iq.png
589 ms
binders.png
785 ms
Nong-lam-ngu.png
800 ms
Cong-nghe-thong-tin.png
804 ms
Phongthuy-doisong.png
823 ms
Kinh-te-quan-ly.png
826 ms
logo-8-3.png
849 ms
templates.png
1049 ms
tieu-su-nhan-vat.png
1069 ms
ky-nang-song.png
1069 ms
DIY.png
1101 ms
hoi-dap.png
1106 ms
Luyen-ky-nang.png
1113 ms
tieng-anh-khung-chau-au.png
1362 ms
Thuong-mai.png
1363 ms
IELTS.png
1366 ms
TOEIC.png
1362 ms
Giao-an.png
1363 ms
voa.png
1372 ms
tu-vung-tieng-anh.png
1617 ms
hanh-chinh.png
1609 ms
giao-duc.png
1613 ms
transportation.png
1613 ms
hd.png
1614 ms
bat-tay.png
1625 ms
xuat-nhap.png
1845 ms
van-hoa.png
1852 ms
Bao-hiem.png
1858 ms
tax.gif
1858 ms
medicine.png
1863 ms
insurance.png
1880 ms
cVVfKm
54 ms
no-image.png
245 ms
ouibounce.min.css
259 ms
blank.png
297 ms
collect
19 ms
collect
151 ms
cache.aspx
781 ms
adsbygoogle.js
64 ms
ca-pub-9275417305531302.js
182 ms
zrt_lookup.html
177 ms
show_ads_impl.js
111 ms
dan-su.png
1577 ms
phap-ly.png
1557 ms
kien-tung.png
1565 ms
moi-truong.png
1549 ms
post.png
1550 ms
khoa-hoc-cn.png
1558 ms
ads
255 ms
osd.js
95 ms
hang-khong.png
1557 ms
ngoai-giao.png
1551 ms
du-lich.png
1565 ms
kiem-toan.png
1547 ms
tai-chinh.png
1551 ms
dau-tu.png
1557 ms
sport.png
1477 ms
chinh-sach.png
1484 ms
co-cau.png
1500 ms
kien-cao.png
1503 ms
nong-lam.png
1580 ms
it.png
1846 ms
tai-lieu-khac.png
1540 ms
student.png
1528 ms
Marketing.png
1547 ms
Tai-chinh-thue.png
1520 ms
Moi-truong.png
1525 ms
so-huu-tri-tue.png
1455 ms
ngoai-thuong.png
1547 ms
giao-thong.png
1472 ms
hang-hai.png
1495 ms
van-hoa.png
1493 ms
xuat-nhap.png
1562 ms
tien-luong.png
1649 ms
tu-lanh-800x500.jpg
2052 ms
b.gif
863 ms
translateelement.css
152 ms
main.js
164 ms
google_custom_search_watermark.gif
173 ms
arrow-left.png
294 ms
platform.js
184 ms
sdk.js
48 ms
chat-tay-rua-400x800.jpg
1925 ms
do-kho-400x800.jpg
1962 ms
arrow-right.png
282 ms
scrolltop.png
280 ms
xay-dung.png
1470 ms
khoa-hoc-xa-hoi.png
1469 ms
Y-hoc.png
1477 ms
Co-khi.png
1501 ms
thac-sy.png
1506 ms
hoi-dap.png
1493 ms
element_main.js
67 ms
Giao-duc.png
1516 ms
sang-kien-kinh-nghiem.png
1542 ms
Ngan-hang.png
1485 ms
Bao-hiem.png
1595 ms
164 ms
Kinh-te.png
1584 ms
xd_arbiter.php
89 ms
xd_arbiter.php
118 ms
Nong-lam-ngu.png
1624 ms
translate_24dp.png
76 ms
l
65 ms
cleardot.gif
59 ms
cb=gapi.loaded_0
22 ms
cb=gapi.loaded_1
49 ms
fastbutton
113 ms
postmessageRelay
62 ms
Chung-khoan.png
1470 ms
language-icon.png
1493 ms
benh-thuong-gap.png
1463 ms
song-khoe.png
1471 ms
lam-cha-me.png
1498 ms
book.png
1502 ms
language-icon.png
1526 ms
Khoa-hoc-tu-nhien.png
1484 ms
Dien-tu-vien-thong.png
1600 ms
Entertainment-icon.png
1543 ms
cb=gapi.loaded_0
21 ms
cb=gapi.loaded_1
20 ms
1077434459-postmessagerelay.js
98 ms
rpc:shindig_random.js
59 ms
xay-dung.png
1590 ms
sinh-hoc-thuc-pham.png
1622 ms
cb=gapi.loaded_0
45 ms
Giao-an-bai-giang.png
1478 ms
Y-te.png
1473 ms
bai-giang.png
1501 ms
Phothongtrunghoc.png
1478 ms
violympic.png
1505 ms
test-ielts.png
1518 ms
Y-hoc.png
1491 ms
IQ-Test.png
1530 ms
benh-ly.png
1611 ms
Ngu-phap-tieng-anh.png
1540 ms
dinh-duong.png
1615 ms
Lam-dep.png
1585 ms
Kinh-te-xa-hoi.png
1483 ms
lap-trinh.png
1508 ms
tieu-hoc.png
1472 ms
Trung-hoc-co-so.png
1477 ms
Trung-hoc-pho-thong.png
1512 ms
Giao-duc.png
1492 ms
luyen-thi.png
1621 ms
EQ-test.png
1520 ms
english_test.png
1537 ms
nhung-dieu-can-biet-ve-tuyen-sinh-dh-cd-206.jpg
1811 ms
bo-gd-dt-khong-ban-hanh-de-thi-minh-hoa-2016.jpg
1908 ms
nhac-phim-hau-due-mat-troi.jpg
1860 ms
thpt-quoc-gia-mon-toan-2016.jpg
1788 ms
bi-quyet-lam-trang-rang.jpg
1486 ms
doc.png
1513 ms
bo-de-thi-thu-thpt-quoc-gia-2016-mon-toan-so-4-200.jpg
1488 ms
pdf.png
1494 ms
cach-lap-to-khai-thue-tndn-tam-tinh-theo-quy-200.png
1926 ms
120-bai-toan-luyen-thi-violympic-lop-5-nho.jpg
1793 ms
doc.png
1527 ms
pdf.png
1538 ms
cach-lam-pudding-tra-xanh-200.jpg
1706 ms
pdf.png
1671 ms
tac-hai-khi-cho-con-an-nhieu-duong-200.png
1830 ms
meo-vat-gia-dinh-105.png
1748 ms
pdf.png
1529 ms
de-thi-giua-ky-2-mon-tieng-anh-lop-11-truong-thpt-da-phuc-ha-noi-nam-hoc-2015-2016-200.png
2092 ms
chm2014.png
1750 ms
Cong-nghe-thong-tin.png
1760 ms
doc.png
1561 ms
van-ban-hop-nhat-03-vbhn-nhnn-200.png
1862 ms
tieu-luan-van-de-o-nhiem-dat-o-viet-nam-200.png
1739 ms
glucozo-a.jpg
1704 ms
Phongthuy-doisong.png
1664 ms
Kinh-te-quan-ly.png
1797 ms
logo-8-3.png
1768 ms
PDF_logo.gif
1585 ms
templates.png
1773 ms
de-thi-thu-thpt-quoc-gia-mon-sinh-hoc-lan-1-nam-2016-truong-thpt-han-thuyen-bac-ninh-200.jpg
1601 ms
tieu-su-nhan-vat.png
1771 ms
ky-nang-song.png
1767 ms
de-thi-thu-thpt-quoc-gia-nam-2016-mon-sinh-hoc-truong-thpt-ly-thai-to-bac-ninh-lan-2-200.jpg
1754 ms
de-thi-violympic-toan-lop-5-vong-19-nam-2014-2015-200.jpg
1752 ms
lieu-ban-co-du-tinh-tuong-de-nhin-thau-6-anh-ao-nay-200.jpg
1797 ms
de-thi-thu-thpt-quoc-gia-mon-sinh-nam-2016-truong-thpt-ly-thai-to-bac-ninh-200.jpg
2056 ms
DIY.png
1674 ms
hanh-chinh.png
1799 ms
giao-duc.png
1769 ms
de-thi-thu-thpt-quoc-gia-nam-2016-mon-sinh-hoc-tinh-vinh-phuc-lan-2-200.jpg
1684 ms
transportation.png
1774 ms
de-thi-violympic-toan-tieng-anh-lop-4-vong-10-200.jpg
2037 ms
hd.png
1772 ms
bat-tay.png
1784 ms
de-thi-violympic-toan-tieng-anh-lop-4-vong-10-nam-2014-2015-200.jpg
1763 ms
de-thi-thu-thpt-quoc-gia-mon-hoa-nam-2016-truong-thpt-chuyen-nguyen-hue-ha-noi-200.jpg
1842 ms
luyen-thi-violympic-toan-lop-9-vong-19-nam-2015-2016-200.jpg
1823 ms
Tin-hoc-van-phong.png
1855 ms
Marketing.png
1671 ms
Tai-chinh-thue.png
1810 ms
Moi-truong.png
1776 ms
ngoai-thuong.png
1774 ms
van-hoa-co-truyen.jpg
1800 ms
Khoahoc-kythuat.png
1880 ms
Thuong-mai.png
1775 ms
khoa-hoc-xa-hoi.png
1786 ms
Vanhoa-giaitri.png
1852 ms
Loi-bai-hat-Lyric.jpg
1845 ms
Du-lich.png
1884 ms
mon-ngon-moi-ngay.jpg
1941 ms
Co-khi.png
1659 ms
thac-sy.png
1776 ms
benh-thuong-gap.png
1781 ms
song-khoe.png
1773 ms
Truyen-ke-be-nghe.png
1801 ms
Le-tet-co-truyen.png
1886 ms
lam-cha-me.png
1771 ms
meo-vat-cuoc-song.png
1849 ms
gia-dinh.png
1843 ms
tin-dung.png
1884 ms
to-cao.png
1791 ms
tuyen-dung.png
1778 ms
doanh-nghiep.png
1823 ms
an-ninh.png
1811 ms
Ngan-hang.png
1780 ms
Kinh-te.png
1688 ms
Chung-khoan.png
1744 ms
Khoa-hoc-tu-nhien.png
1706 ms
Dien-tu-vien-thong.png
1790 ms
xay-dung.png
1613 ms
sinh-hoc-thuc-pham.png
1619 ms
law.png
1637 ms
benh-ly.png
1669 ms
dinh-duong.png
1628 ms
Lam-dep.png
1599 ms
vndoc.com accessibility score
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
[aria-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
vndoc.com 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
vndoc.com 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 Vndoc.com 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 Vndoc.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.
vndoc.com
Open Graph description is not detected on the main page of Vn Doc. 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: